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• iPhone doesn't save password for Cisco IPsec VPN using racoon daemon

  - by dsx

  On my Debian server I had set up racoon daemon (1:0.8.0-14) for Cisco IPSec VPN using certificates for authentication. My racoon.conf is like following: log info; path certificate "/etc/racoon/certs"; listen { isakmp $SERVER_IP_HERE [500]; isakmp_natt $SERVER_IP_HERE [4500]; } timer { natt_keepalive 10 sec; } remote anonymous { lifetime time 24 hours; proposal_check obey; passive on; exchange_mode aggressive,main; my_identifier asn1dn; peers_identifier asn1dn; verify_identifier on; certificate_type x509 "cert_name.crt" "key_name.key"; ca_type x509 "ca.crt"; mode_cfg on; verify_cert on; ike_frag on; generate_policy on; nat_traversal on; dpd_delay 20; proposal { encryption_algorithm aes; hash_algorithm sha1; authentication_method xauth_rsa_server; dh_group modp1024; } } mode_cfg { conf_source local; auth_source system; auth_throttle 3; save_passwd on; dns4 8.8.8.8; network4 $SOME_LAN_SUBNET; netmask4 255.255.255.0; pool_size 128; } sainfo anonymous { pfs_group 2; lifetime time 24 hour; encryption_algorithm aes; authentication_algorithm hmac_sha1; compression_algorithm deflate; } I'm not using PSK authentication here. Using iPhone configuration utility I had uploaded all required certificates to iPhone and set up VPN on demand. Everything works just fine except one thing: iPhone refuses to save VPN password regardless of save_passwd on; in racoon configuration file. As opposed to iPhone behaviour, Mac OS X 10.8.2 have no problems saving password. I had examined iPhone log file and found following: racoon[151] <Notice>: >>>>> phase change status = phase 1 established configd[50] <Notice>: IPSec Network Configuration started. configd[50] <Notice>: IPSec Network Configuration: INTERNAL-IP4-ADDRESS = $SUBNET_IP_HERE. configd[50] <Notice>: IPSec Network Configuration: INTERNAL-IP4-MASK = 255.255.255.0. configd[50] <Notice>: IPSec Network Configuration: SAVE-PASSWORD = 0. configd[50] <Notice>: IPSec Network Configuration: INTERNAL-IP4-DNS = 8.8.8.8. configd[50] <Notice>: IPSec Network Configuration: BANNER = . configd[50] <Notice>: IPSec Network Configuration: DEF-DOMAIN = . configd[50] <Notice>: IPSec Network Configuration: DEFAULT-ROUTE = local-address $SUBNET_IP_HERE/32. configd[50] <Notice>: IPSec Phase2 starting. configd[50] <Notice>: IPSec Network Configuration established. configd[50] <Notice>: IPSec Phase1 established. Please note IPSec Network Configuration message containing SAVE-PASSWORD = 0.. Is it a bug in racoon daemon on server, or iPhone (iOS version is 6.0.1 (10A523)) or it is me missing something? How to make iPhone remember IPSec VPN password?

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• How to resolve high CPU + excessive stat("/etc/localtime") and clock_gettime(CLOCK_REALTIME) calls

  - by Yemster

  I've been experiencing really high CPU on a ruby on rails app (see stack below) and have been trying to diagnose the possible causes to no avail. Stack: ruby 1.9.3 rails 3.2.6 Apache/2.2.21 (Debian) Phusion Passenger 3.0.11 Whenever I run strace against the spiking Rack process PID (see Top excerpt below), I am seeing a tonne of stat("/etc/localtime") and clock_gettime(CLOCK_REALTIME) calls and have no idea how to stop these. Excerpt from Top showin running PID: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 11674 www-user 20 0 313m 182m 5076 R 99 2.3 63:04.60 Rack: /var/www/my_rails_app/current 11634 www-user 20 0 411m 216m 5144 S 10 2.7 197:55.63 Rack: /var/www/my_rails_app/current Strace snippet below: [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 141474018}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 141577456}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 143073982}) = 0 [pid 11674] poll([{fd=15, events=POLLIN|POLLPRI}], 1, 0) = 0 (Timeout) [pid 11674] write(15, "b\0\0\0\3SELECT `images`.* FROM `ima"..., 102) = 102 [pid 11674] read(15, "\1\0\0\1\0229\0\0\2\3def\23myappy_productio"..., 16384) = 2063 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 144138035}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 ... [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 154076443}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 154189429}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 157185700}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 157298770}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 165076003}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 165212572}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 167542679}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354058955, 167683436}) = 0 .... [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 62052248}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 62182486}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 62919948}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 63057266}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 63751707}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 73730686}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 75874687}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 76077133}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 78205019}) = 0 ... [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 89370879}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 89583247}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 91637614}) = 0 [pid 11674] clock_gettime(CLOCK_REALTIME, {1354060036, 91782149}) = 0 Have Google'd around and came across a number of suggestions which I've tried with no success. Things tried so far: Have tried setting time zone as recommended here Made no difference and issue still persists. Content of my /etc/localtime: TZif2UTCTZif2UTC UTC0 Have tried the recommended fix for the leapsecond bug: date -s 'date' No joy so far. I'm fresh out of ideas so any help/advice on how to diagnose or resolve would be greatly appreciated.

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• Why is syslog so much slower than file IO?

  - by ceving

  I wrote a simple test program to measure the performance of the syslog function. This are the results of my test system: (Debian 6.0.2 with Linux 2.6.32-5-amd64) Test Case Calls Payload Duration Thoughput [] [MB] [s] [MB/s] -------------------- ---------- ---------- ---------- ---------- syslog 200000 10.00 7.81 1.28 syslog %s 200000 10.00 9.94 1.01 write /dev/null 200000 10.00 0.03 343.93 printf %s 200000 10.00 0.13 76.29 The test program did 200000 system calls writing 50 Bytes of data during each call. Why is Syslog more than ten times slower than file IO? This is the program I used to perform the test: #include <fcntl.h> #include <stdio.h> #include <string.h> #include <sys/stat.h> #include <sys/time.h> #include <sys/types.h> #include <syslog.h> #include <unistd.h> const int iter = 200000; const char msg[] = "123456789 123456789 123456789 123456789 123456789"; struct timeval t0; struct timeval t1; void start () { gettimeofday (&t0, (void*)0); } void stop () { gettimeofday (&t1, (void*)0); } void report (char *action) { double dt = (double)t1.tv_sec - (double)t0.tv_sec + 1e-6 * ((double)t1.tv_usec - (double)t0.tv_usec); double mb = 1e-6 * sizeof (msg) * iter; if (action == NULL) printf ("Test Case Calls Payload Duration Thoughput \n" " [] [MB] [s] [MB/s] \n" "-------------------- ---------- ---------- ---------- ----------\n"); else { if (strlen (action) > 20) action[20] = 0; printf ("%-20s %-10d %-10.2f %-10.2f %-10.2f\n", action, iter, mb, dt, mb / dt); } } void test_syslog () { int i; openlog ("test_syslog", LOG_PID | LOG_NDELAY, LOG_LOCAL0); start (); for (i = 0; i < iter; i++) syslog (LOG_DEBUG, msg); stop (); closelog (); report ("syslog"); } void test_syslog_format () { int i; openlog ("test_syslog", LOG_PID | LOG_NDELAY, LOG_LOCAL0); start (); for (i = 0; i < iter; i++) syslog (LOG_DEBUG, "%s", msg); stop (); closelog (); report ("syslog %s"); } void test_write_devnull () { int i, fd; fd = open ("/dev/null", O_WRONLY); start (); for (i = 0; i < iter; i++) write (fd, msg, sizeof(msg)); stop (); close (fd); report ("write /dev/null"); } void test_printf () { int i; FILE *fp; fp = fopen ("/tmp/test_printf", "w"); start (); for (i = 0; i < iter; i++) fprintf (fp, "%s", msg); stop (); fclose (fp); report ("printf %s"); } int main (int argc, char **argv) { report (NULL); test_syslog (); test_syslog_format (); test_write_devnull (); test_printf (); }

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• Possible to give one connection to each IP?

  - by Alice

  I am having overloading problems. Too many connections, and some IP has more than 20 connection at once. I do this command. netstat -anp |grep 'tcp\|udp' | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n To get total of connection and this is the output: 1 106.3.98.81 1 106.3.98.82 1 108.171.251.2 1 110.85.103.207 1 111.161.30.217 1 113.53.103.55 1 119.235.237.20 1 124.106.19.34 1 157.55.32.166 1 157.55.33.49 1 157.55.34.28 1 175.141.103.239 1 180.76.5.59 1 180.76.5.61 1 188.235.165.216 1 205.213.195.70 1 216.157.222.25 1 218.93.205.100 1 222.77.209.105 1 27.153.148.109 1 27.159.194.242 1 27.159.253.71 1 54.242.122.201 1 61.172.50.99 1 65.55.24.239 1 71.179.78.5 1 74.125.136.27 1 74.125.182.30 1 74.125.182.36 1 79.112.225.39 1 93.190.139.208 2 124.227.191.67 2 157.55.33.84 2 157.55.35.34 2 190.66.3.107 2 203.87.153.38 2 220.161.119.3 2 221.6.15.156 2 27.153.148.116 2 27.159.197.0 2 96.47.224.42 3 202.14.70.1 3 218.6.15.42 3 222.77.218.226 3 222.77.224.187 3 37.59.66.100 3 46.4.181.244 3 87.98.254.192 3 91.207.8.62 4 188.143.233.222 4 218.108.168.166 4 221.12.154.18 4 93.182.157.8 4 94.142.128.183 5 180.246.170.187 5 8.21.6.226 6 178.137.94.87 6 218.93.205.112 7 199.15.234.222 9 9 125.253.97.6 10 178.137.17.196 11 46.118.192.179 12 212.79.14.14 21 72.201.187.135 27 0.0.0.0 Can anyone give me some directions, my server crashed few times this week because of this. Thanks. EDIT: Alright, my error logs says: [Thu Oct 18 12:17:39 2012] [error] could not make child process 4842 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4843 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4855 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4856 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4861 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4869 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4872 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4873 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4874 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4875 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4876 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4880 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4882 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4885 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4897 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4900 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4901 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4906 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4907 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4925 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4926 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4927 exit, attempting to continue anyway [Thu Oct 18 12:17:39 2012] [error] could not make child process 4931 exit, attempting to continue anyway [Thu Oct 18 12:17:40 2012] [notice] caught SIGTERM, shutting down PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20060613+lfs/curl.iso' - /usr/lib/php5/20060613+lfs/curl.iso: cannot open shared object file: No such file or directory in Unknown on line 0 [Thu Oct 18 12:17:45 2012] [notice] Apache/2.2.9 (Debian) PHP/5.2.6-1+lenny10 with Suhosin-Patch configured -- resuming normal operations And I have over thousands of line saying:(each has different process id) [Thu Oct 18 12:17:38 2012] [error] child process 4906 still did not exit, sending a SIGKILL And I also have line saying: [Wed Oct 17 09:44:58 2012] [error] server reached MaxClients setting, consider raising the MaxClients setting <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 50 MaxClients 300 MaxRequestsPerChild 5000 </IfModule>

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• Pairing Bluetooth device with PIN fails

  - by Pikaro

  I'm trying to pair my old BlackBerry 8310 to my Linux desktop (up-to-date Debian Sid, 3.15-10.dmz.1-liquorix-amd64) by using blueman and its associated tools. Scanning for the device works equally well for both sides; however, I am unable to pair the two once it comes to entering the PIN. If I scan from my PC, I have two options in blueman-manager regarding my phone: Directly selecting "pair", or selecting "setup". If I select "pair", nothing happens on my desktop, but the phone asks me to enter a PIN; if I do so, it reports that pairing has failed. During that, nothing is logged to the console. Selecting "setup" opens a configuration dialog that allows for entering or generating a PIN. Regardless, I get to a screen that tells me to enter the PIN on the phone, and at the same time, the phone pops up the equivalent dialog. This would be what one would expect to work; but whatever I enter (naturally, the same on both), both devices report that pairing has failed, and blueman-manager logs init_services (/usr/lib/python2.7/dist-packages/blueman/main/Device.py:73) Loading services org.bluez.Error.AuthenticationFailed: Authentication Failed If I instead try to pair from the phone, I cannot see any kind of reaction from my desktop - all I get is the equivalent "pairing failed" message from the BlackBerry after I entered a PIN in the dialog that pops up there. hcitool scan and hciconfig -a work without complaints, but I cannot find a way to try the pairing as a whole on the console since bluez-simple-agent seems to have been discontinued and this recommendation is everywhere on Google. hcitool cc as root opens the PIN dialog on the phone, then fails with "Input/Output error" once I enter it. The user is not permitted to execute this command. I also tried creating /usr/lib/bluetooth/<MAC>/pincodes to manually define a persistent PIN, which seems to have had no effect. The same goes for running the different commands as root, though I'm really confused about the internal structure of the Bluetooth subsystem now: They usually and inconsistently failed with Python or DBUS errors or just showed the same results. The only other Bluetooth device I have around are a pair of Creative speakers. Trying "setup" asks me to enter a key on them, which is impossible. If I try "pair", I'm asked for a PIN as I should, but no pairing takes place, and no errors appear on the console. (It just repeats their name a few times.) Interestingly, I tried that before writing my question, and nothing happened in terms of PIN questions, just like with the BlackBerry, which still shows no change. I don't think I actively changed anything since then. The BlackBerry can pair with and connect to the speakers, and everything goes as one would expect, so the problem is definitely with my desktop. So thus my questions: What is that PIN window generated by, and why does it seem to appear randomly? How can I find out what, exactly, fails after trying to add the speakers, as this may give me a clue? Is there any kind of complete log that concerns itself with Bluetooth? What data can I provide to make this more solvable?

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• "The server closed the connection without sending any data"

  - by Toby

  Server setup The problem Diagnostic information What I've tried Specific Help needed 1. I have the following server setup: Debian Squeeze Linux 2.6.32-5-amd64 Apache2-mpm-prefork 2.2.16-6+squeeze10 PHP 5.3.3-7+squeeze14 This server is protected with the Suhosin Patch 0.9.9.1 Max Requests Per Child: 0 - Keep Alive: on - Max Per Connection: 100 Timeouts Connection: 300 - Keep-Alive: 15 Loaded Modules core mod_log_config mod_logio prefork http_core mod_so mod_alias mod_auth_basic mod_auth_digest mod_authn_file mod_authz_default mod_authz_groupfile mod_authz_host mod_authz_user mod_cgi mod_deflate mod_dir mod_env mod_mime mod_negotiation mod_php5 mod_reqtimeout mod_rewrite mod_setenvif mod_ssl mod_status Wordpress 3.4.2 (Upgrading to 3.5 soon :) 2. The problem When I restart the server (sudo shutdown -r now), going to any website page results in the following error from the web browser (in this case, Google Chrome, but other browsers also show the same error). This error can also occur an hour or so after all is working ok, seemingly randomly, which is my biggest concern as it means my server is not reliable: No data received Unable to load the web page because the server sent no data. Here are some suggestions: Reload this web page later. Error 324 (net::ERR_EMPTY_RESPONSE): The server closed the connection without sending any data. 3. Diagnostic information The apache error log contains the folowing entries: [Fri Dec 14 22:23:27 2012] [notice] child pid 1955 exit signal Floating point exception (8) [Fri Dec 14 22:23:27 2012] [notice] child pid 1956 exit signal Floating point exception (8) [Fri Dec 14 22:23:29 2012] [notice] child pid 1957 exit signal Floating point exception (8) [Fri Dec 14 22:23:30 2012] [notice] child pid 1958 exit signal Floating point exception (8) [Fri Dec 14 22:23:32 2012] [notice] child pid 1959 exit signal Floating point exception (8) [Fri Dec 14 22:23:32 2012] [notice] child pid 1960 exit signal Floating point exception (8) [Fri Dec 14 22:23:34 2012] [notice] child pid 1961 exit signal Floating point exception (8) [Fri Dec 14 22:23:34 2012] [notice] child pid 1962 exit signal Floating point exception (8) 4. What I've tried a) I can 'fix' the website temporarily by resetting the server twice (resetting it once does not work) using the following commands. NB: the 'reload' option does not work, I have to use restart twice. However, the error can reoccur sometime later. sudo /etc/init.d/apache2 restart sudo /etc/init.d/apache2 restart b) I have tried disabling suhosin by uninstalling php5-suhosin, but a php info page still shows "This server is protected with the Suhosin Patch 0.9.9.1". I have tried putting Suhosin into simulation mode by creating a file /etc/php5/apache2/conf.d/suhosin.ini containing: [suhosin] suhosin.simulation = On The php info page shows the suhosin.ini file in the list of "Additional .ini files parsed" but the php info page still shows "This server is protected with the Suhosin Patch 0.9.9.1" c) Increasing the PHP memory limit In /etc/php5/apache2/ : ; Maximum amount of memory a script may consume (128MB) ; http://php.net/memory-limit memory_limit = 512M d) Disabling all Wordpress plugins, and going back to the default theme. 5. Specific help needed I would very much like help in debugging what is going on here. I am not sure how to determine what processes are in the Apache error log which are exiting "[notice] child pid 1955 exit signal Floating point exception (8)", or what is causing them to exit. And whether suhosin is part of the problem (and how to disable it if it is). Thank you in advance for any advice or tips you can offer in helping me debug this.

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• Minimal Lunix distribution with sshd and apt

  - by Sergey Mikhanov

  When I signed up for my Debian Linux VPS hosting and first logged on and invoked ps aux, there was the only user process running: sshd. As I can see, this was minimal Linux with only two things installed and configured: sshd and apt (plus all dependencies, of course). I want to build (or use existing) similar Linux distro, any advice on how to build (or pick) one? Googling "minimum linux", or "linux with sshd only" usually brings up Debian's netinstall, which is not what I want. Thanks in advance.

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• apache2 how to trace caller of SIGTERM

  - by art vanderlay

  I have a dex x64 on a virtualbox win7pro host. My apache2 will stop responding after a page request or other activity such as upload via ftp. The php.cgi becomes non responsive and a restart is required any help tracking down the culprit sending the SIGTERM would be much appreciated. thx Art my apache2.conf has <IfModule mpm_prefork_module> ServerLimit 1024 StartServers 10 MinSpareServers 10 MaxSpareServers 20 MaxClients 1024 MaxRequestsPerChild 0 </IfModule> ` From the apache2 log I have [Wed Jun 20 05:07:01 2012] [notice] caught SIGTERM, shutting down [Wed Jun 20 05:07:03 2012] [notice] FastCGI: process manager initialized (pid 4369) [Wed Jun 20 05:07:03 2012] [notice] Apache/2.2.16 (Debian) mod_fastcgi/2.4.6 PHP/5.3.3-7+squeeze13 with Suhosin-Patch mod_perl/2.0.4 Perl/v5.10.1 configured -- resuming normal operations and from the accounting output with lastcomm php.cgi www-data __ 0.13 secs Wed Jun 20 04:49 lastcomm root pts/2 0.10 secs Wed Jun 20 04:49 php.cgi www-data __ 0.18 secs Wed Jun 20 04:49 php.cgi www-data __ 0.18 secs Wed Jun 20 04:47 apache2 root pts/1 0.02 secs Wed Jun 20 04:46 tput root pts/1 0.00 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 apache2ctl root pts/1 0.00 secs Wed Jun 20 04:46 apache2 S root pts/1 0.77 secs Wed Jun 20 04:46 rm root pts/1 0.01 secs Wed Jun 20 04:46 install root pts/1 0.01 secs Wed Jun 20 04:46 mkdir root pts/1 0.00 secs Wed Jun 20 04:46 apache2ctl F root pts/1 0.00 secs Wed Jun 20 04:46 sleep root pts/1 0.00 secs Wed Jun 20 04:46 apache2 SF root __ 0.54 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.14 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.07 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.06 secs Wed Jun 20 04:36 apache2 SF www-data __ 0.07 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.11 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.02 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.04 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.06 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.08 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.03 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.02 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.01 secs Wed Jun 20 04:34 grep root pts/1 0.00 secs Wed Jun 20 04:46 apache2ctl root pts/1 0.02 secs Wed Jun 20 04:46 apache2 root pts/1 0.24 secs Wed Jun 20 04:46 apache2 SF www-data __ 0.00 secs Wed Jun 20 04:34 apache2ctl F root pts/1 0.00 secs Wed Jun 20 04:46 apache2ctl root pts/1 0.00 secs Wed Jun 20 04:46 apache2 root pts/1 0.22 secs Wed Jun 20 04:46 apache2ctl F root pts/1 0.01 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 grep root pts/1 0.00 secs Wed Jun 20 04:46 tr root pts/1 0.00 secs Wed Jun 20 04:46 pidof S root pts/1 0.11 secs Wed Jun 20 04:46 cat root pts/1 0.00 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 grep root pts/1 0.00 secs Wed Jun 20 04:46 tr root pts/1 0.00 secs Wed Jun 20 04:46 pidof S root pts/1 0.05 secs Wed Jun 20 04:46 cat root pts/1 0.01 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 apache2ctl root pts/1 0.00 secs Wed Jun 20 04:46 apache2 root pts/1 0.34 secs Wed Jun 20 04:46 apache2ctl F root pts/1 0.00 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 smbd SF root __ 0.25 secs Wed Jun 20 04:46 php.cgi www-data __ 0.14 secs Wed Jun 20 04:45 php.cgi www-data __ 0.19 secs Wed Jun 20 04:42 cron SF root __ 0.02 secs Wed Jun 20 04:39 sh S root __ 0.00 secs Wed Jun 20 04:39 find root __ 0.00 secs Wed Jun 20 04:39 maxlifetime root __ 0.02 secs Wed Jun 20 04:39 php5 root __ 0.13 secs Wed Jun 20 04:39 which root __ 0.00 secs Wed Jun 20 04:39 exim4 S root __ 0.01 secs Wed Jun 20 04:37 php.cgi www-data __ 0.04 secs Wed Jun 20 04:36 php.cgi www-data __ 0.12 secs Wed Jun 20 04:35 php.cgi www-data __ 0.11 secs Wed Jun 20 04:35 php.cgi www-data __ 0.14 secs Wed Jun 20 04:34 lastcomm root pts/2 0.09 secs Wed Jun 20 04:34 apache2 root pts/1 0.02 secs Wed Jun 20 04:34 tput root pts/1 0.00 secs Wed Jun 20 04:34 apache2 F root pts/1 0.00 secs Wed Jun 20 04:34 apache2ctl root pts/1 0.00 secs Wed Jun 20 04:34 apache2 S root pts/1 0.54 secs Wed Jun 20 04:34 rm root pts/1 0.00 secs Wed Jun 20 04:34 install root pts/1 0.00 secs Wed Jun 20 04:34 mkdir root pts/1 0.00 secs Wed Jun 20 04:34 apache2ctl F root pts/1 0.00 secs Wed Jun 20 04:34 sleep root pts/1 0.00 secs Wed Jun 20 04:34 apache2 SF root __ 0.80 secs Wed Jun 20 03:58 sleep root pts/1 0.00 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.26 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.12 secs Wed Jun 20 03:59 apache2 SF www-data __ 0.13 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.13 secs Wed Jun 20 03:59 apache2 SF www-data __ 0.15 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.18 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.07 secs Wed Jun 20 04:21 apache2 SF www-data __ 0.18 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.17 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.30 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.09 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.02 secs Wed Jun 20 04:13

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• Problem with RAID5 (mdadm) - disk detached

  - by poscaman

  Having these lines in /var/log/syslog Apr 18 16:53:05 Server kernel: [4487878.816036] ata4: EH in SWNCQ mode,QC:qc_active 0x1 sactive 0x1 Apr 18 16:53:05 Server kernel: [4487878.816058] ata4: SWNCQ:qc_active 0x1 defer_bits 0x0 last_issue_tag 0x0 Apr 18 16:53:05 Server kernel: [4487878.816059] dhfis 0x1 dmafis 0x1 sdbfis 0x0 Apr 18 16:53:05 Server kernel: [4487878.816093] ata4: ATA_REG 0x40 ERR_REG 0x0 Apr 18 16:53:05 Server kernel: [4487878.816108] ata4: tag : dhfis dmafis sdbfis sacitve Apr 18 16:53:05 Server kernel: [4487878.816125] ata4: tag 0x0: 1 1 0 1 Apr 18 16:53:05 Server kernel: [4487878.816150] ata4.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x6 frozen Apr 18 16:53:05 Server kernel: [4487878.816178] ata4.00: failed command: WRITE FPDMA QUEUED Apr 18 16:53:05 Server kernel: [4487878.816199] ata4.00: cmd 61/08:00:00:88:e0/00:00:e8:00:00/40 tag 0 ncq 4096 out Apr 18 16:53:05 Server kernel: [4487878.816200] res 40/00:00:01:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) Apr 18 16:53:05 Server kernel: [4487878.816253] ata4.00: status: { DRDY } Apr 18 16:53:05 Server kernel: [4487878.816272] ata4: hard resetting link Apr 18 16:53:05 Server kernel: [4487878.816274] ata4: nv: skipping hardreset on occupied port Apr 18 16:53:06 Server kernel: [4487879.676029] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Apr 18 16:53:07 Server kernel: [4487880.416749] ata4.00: n_sectors mismatch 3907029168 != 268435455 Apr 18 16:53:07 Server kernel: [4487880.416752] ata4.00: revalidation failed (errno=-19) Apr 18 16:53:07 Server kernel: [4487880.416773] ata4.00: limiting speed to UDMA/133:PIO2 Apr 18 16:53:11 Server kernel: [4487884.676024] ata4: hard resetting link Apr 18 16:53:11 Server kernel: [4487884.676027] ata4: nv: skipping hardreset on occupied port Apr 18 16:53:12 Server kernel: [4487885.144032] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Apr 18 16:53:12 Server kernel: [4487885.240185] ata4.00: failed to IDENTIFY (INIT_DEV_PARAMS failed, err_mask=0x80) Apr 18 16:53:12 Server kernel: [4487885.240190] ata4.00: revalidation failed (errno=-5) Apr 18 16:53:12 Server kernel: [4487885.240210] ata4.00: disabled Apr 18 16:53:17 Server kernel: [4487890.144023] ata4: hard resetting link Apr 18 16:53:17 Server kernel: [4487891.024033] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Apr 18 16:53:17 Server kernel: [4487891.033357] ata4.00: ATA-8: WDC WD20EARS-00S8B1, 80.00A80, max UDMA/133 Apr 18 16:53:17 Server kernel: [4487891.033360] ata4.00: 3907029168 sectors, multi 1: LBA48 NCQ (depth 31/32) Apr 18 16:53:17 Server kernel: [4487891.048347] ata4.00: configured for UDMA/133 Apr 18 16:53:17 Server kernel: [4487891.048361] sd 3:0:0:0: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Apr 18 16:53:17 Server kernel: [4487891.048365] sd 3:0:0:0: [sdc] Sense Key : Aborted Command [current] [descriptor] Apr 18 16:53:17 Server kernel: [4487891.048369] Descriptor sense data with sense descriptors (in hex): Apr 18 16:53:17 Server kernel: [4487891.048371] 72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00 Apr 18 16:53:17 Server kernel: [4487891.048378] 00 00 00 00 Apr 18 16:53:17 Server kernel: [4487891.048382] sd 3:0:0:0: [sdc] Add. Sense: No additional sense information Apr 18 16:53:17 Server kernel: [4487891.048385] sd 3:0:0:0: [sdc] CDB: Write(10): 2a 00 e8 e0 88 00 00 00 08 00 Apr 18 16:53:17 Server kernel: [4487891.048393] end_request: I/O error, dev sdc, sector 3907028992 Apr 18 16:53:17 Server kernel: [4487891.048420] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048440] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048458] end_request: I/O error, dev sdc, sector 3907028992 Apr 18 16:53:17 Server kernel: [4487891.048477] md: super_written gets error=-5, uptodate=0 Apr 18 16:53:17 Server kernel: [4487891.048482] raid5: Disk failure on sdc, disabling device. Apr 18 16:53:17 Server kernel: [4487891.048483] raid5: Operation continuing on 3 devices. Apr 18 16:53:17 Server kernel: [4487891.048525] ata4: EH complete Apr 18 16:53:17 Server kernel: [4487891.048554] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048576] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048596] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048615] sd 3:0:0:0: [sdc] READ CAPACITY(16) failed Apr 18 16:53:17 Server kernel: [4487891.048617] sd 3:0:0:0: [sdc] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Apr 18 16:53:17 Server kernel: [4487891.048620] sd 3:0:0:0: [sdc] Sense not available. Apr 18 16:53:17 Server kernel: [4487891.048624] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048643] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048663] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048681] sd 3:0:0:0: [sdc] READ CAPACITY failed Apr 18 16:53:17 Server kernel: [4487891.048683] sd 3:0:0:0: [sdc] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Apr 18 16:53:17 Server kernel: [4487891.048685] sd 3:0:0:0: [sdc] Sense not available. Apr 18 16:53:17 Server kernel: [4487891.048689] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048709] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048800] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.048860] sd 3:0:0:0: rejecting I/O to offline device Apr 18 16:53:17 Server kernel: [4487891.049028] sd 3:0:0:0: [sdc] Asking for cache data failed Apr 18 16:53:17 Server kernel: [4487891.049048] sd 3:0:0:0: [sdc] Assuming drive cache: write through Apr 18 16:53:17 Server kernel: [4487891.049071] sdc: detected capacity change from 2000398934016 to 0 Apr 18 16:53:17 Server kernel: [4487891.049080] ata4.00: detaching (SCSI 3:0:0:0) Apr 18 16:53:18 Server kernel: [4487891.061149] sd 3:0:0:0: [sdc] Stopping disk Apr 18 16:53:18 Server kernel: [4487891.485492] RAID5 conf printout: Apr 18 16:53:18 Server kernel: [4487891.485496] --- rd:4 wd:3 Apr 18 16:53:18 Server kernel: [4487891.485500] disk 0, o:1, dev:sdb Apr 18 16:53:18 Server kernel: [4487891.485502] disk 1, o:0, dev:sdc Apr 18 16:53:18 Server kernel: [4487891.485504] disk 2, o:1, dev:sdd Apr 18 16:53:18 Server kernel: [4487891.485506] disk 3, o:1, dev:sde Apr 18 16:53:18 Server kernel: [4487891.497014] RAID5 conf printout: Apr 18 16:53:18 Server kernel: [4487891.497016] --- rd:4 wd:3 Apr 18 16:53:18 Server kernel: [4487891.497018] disk 0, o:1, dev:sdb Apr 18 16:53:18 Server kernel: [4487891.497019] disk 2, o:1, dev:sdd Apr 18 16:53:18 Server kernel: [4487891.497021] disk 3, o:1, dev:sde Apr 18 16:53:18 Server kernel: [4487891.838719] scsi 3:0:0:0: Direct-Access ATA WDC WD20EARS-00S 80.0 PQ: 0 ANSI: 5 Apr 18 16:53:18 Server kernel: [4487891.838886] sd 3:0:0:0: Attached scsi generic sg3 type 0 Apr 18 16:53:18 Server kernel: [4487891.838911] sd 3:0:0:0: [sdf] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) Apr 18 16:53:18 Server kernel: [4487891.838964] sd 3:0:0:0: [sdf] Write Protect is off Apr 18 16:53:18 Server kernel: [4487891.838967] sd 3:0:0:0: [sdf] Mode Sense: 00 3a 00 00 Apr 18 16:53:18 Server kernel: [4487891.838988] sd 3:0:0:0: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA Apr 18 16:53:20 Server kernel: [4487891.839147] sdf: unknown partition table Apr 18 16:53:20 Server kernel: [4487893.130026] sd 3:0:0:0: [sdf] Attached SCSI disk Right now, i'm unable to do anything on /dev/sdc. Is there any way to try to re-attach it? I don't want to power-down the server unless absolutely necessary System: Debian Stable 2.6.32-5-amd64 mdadm version 3.1.4-1+8efb9d1 cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] md0 : active raid5 sdb[0] sdc[4](F) sde[3] sdd[2] 5860543488 blocks level 5, 64k chunk, algorithm 2 [4/3] [U_UU] unused devices: <none> mdadm --examine --scan ARRAY /dev/md0 UUID=1a7744b5:912ec7af:f82a9565:e3b453b4

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• outlook iptables configuration [update]

  - by mediaexpert

  I've a Debian mail server, but only the outlook users can't be able to download the emails. I've seen a lot of post about some kind of forwarding port configuration, I've tried some commands, but I don't be able to solve this problem, please help me. [LAST UPDATE] I find a lot of TIME WAIT on ipv6 netstat tcp6 0 0 my.mailserver.it:imap2 200-62-245-188.ip2:17060 TIME_WAIT - below some config files: pop3d I think the problem was here ##NAME: POP3AUTH:1 # # To advertise the SASL capability, per RFC 2449, uncomment the POP3AUTH # variable: # # POP3AUTH="LOGIN" # # If you have configured the CRAM-MD5, CRAM-SHA1 or CRAM-SHA256, set POP3AUTH # to something like this: # # POP3AUTH="LOGIN CRAM-MD5 CRAM-SHA1" POP3AUTH="" ##NAME: POP3AUTH_ORIG:1 # # For use by webadmin POP3AUTH_ORIG="PLAIN LOGIN CRAM-MD5 CRAM-SHA1 CRAM-SHA256" ##NAME: POP3AUTH_TLS:1 # # To also advertise SASL PLAIN if SSL is enabled, uncomment the # POP3AUTH_TLS environment variable: # # POP3AUTH_TLS="LOGIN PLAIN" POP3_TLS_REQUIRED = 0 POP3AUTH_TLS="" ##NAME: POP3AUTH_TLS_ORIG:0 # # For use by webadmin POP3AUTH_TLS_ORIG="LOGIN PLAIN" ##NAME: POP3_PROXY:0 # # Enable proxying. See README.proxy # # For use by webadmin POP3AUTH_TLS_ORIG="LOGIN PLAIN" ##NAME: POP3_PROXY:0 # # Enable proxying. See README.proxy POP3_PROXY=0 ##NAME: PROXY_HOSTNAME:0 # # Override value from gethostname() when checking if a proxy connection is # required. # PROXY_HOSTNAME= ##NAME: PORT:1 ##NAME: PROXY_HOSTNAME:0 # # Override value from gethostname() when checking if a proxy connection is # required. # PROXY_HOSTNAME= ##NAME: PORT:1 # # Port to listen on for connections. The default is port 110. # # Multiple port numbers can be separated by commas. When multiple port # numbers are used it is possibly to select a specific IP address for a # given port as "ip.port". For example, "127.0.0.1.900,192.68.0.1.900" # accepts connections on port 900 on IP addresses 127.0.0.1 and 192.68.0.1 # The ADDRESS setting is a default for ports that do not have a specified # IP address. # Port to listen on for connections. The default is port 110. # # Multiple port numbers can be separated by commas. When multiple port # numbers are used it is possibly to select a specific IP address for a # given port as "ip.port". For example, "127.0.0.1.900,192.68.0.1.900" # accepts connections on port 900 on IP addresses 127.0.0.1 and 192.68.0.1 # The ADDRESS setting is a default for ports that do not have a specified # IP address. PORT=110 ##NAME: ADDRESS:0 # # IP address to listen on. 0 means all IP addresses. ADDRESS=0 ##NAME: TCPDOPTS:0 # ##NAME: ADDRESS:0 # # IP address to listen on. 0 means all IP addresses. ADDRESS=0 ##NAME: TCPDOPTS:0 # # Other couriertcpd(1) options. The following defaults should be fine. # TCPDOPTS="-nodnslookup -noidentlookup" ##NAME: LOGGEROPTS:0 # # courierlogger(1) options. # LOGGEROPTS="-name=pop3d" ##NAME: DEFDOMAIN:0 # # Optional default domain. If the username does not contain the # first character of DEFDOMAIN, then it is appended to the username. # If DEFDOMAIN and DOMAINSEP are both set, then DEFDOMAIN is appended # only if the username does not contain any character from DOMAINSEP. # You can set different default domains based on the the interface IP # address using the -access and -accesslocal options of couriertcpd(1). DEFDOMAIN="@interzone.it" ##NAME: POP3DSTART:0 # # POP3DSTART is not referenced anywhere in the standard Courier programs # or scripts. Rather, this is a convenient flag to be read by your system # startup script in /etc/rc.d, like this: # # . /etc/courier/pop3d DEFDOMAIN="@mydomain.com" ##NAME: POP3DSTART:0 # # POP3DSTART is not referenced anywhere in the standard Courier programs # or scripts. Rather, this is a convenient flag to be read by your system # startup script in /etc/rc.d, like this: # # . /etc/courier/pop3d # case x$POP3DSTART in # x[yY]*) # /usr/lib/courier/pop3d.rc start # ;; # esac # # The default setting is going to be NO, until Courier is shipped by default # with enough platforms so that people get annoyed with having to flip it to # YES every time. # x[yY]*) # /usr/lib/courier/pop3d.rc start # ;; # esac # # The default setting is going to be NO, until Courier is shipped by default # with enough platforms so that people get annoyed with having to flip it to # YES every time. POP3DSTART=YES ##NAME: MAILDIRPATH:0 # # MAILDIRPATH - directory name of the maildir directory. # MAILDIRPATH=.maildir iptables Chain INPUT (policy DROP 20 packets, 1016 bytes) pkts bytes target prot opt in out source destination 60833 16M ACCEPT tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:143 state NEW,ESTABLISHED 18970 971K ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp spts:1024:65535 dpt:110 state NEW,ESTABLISHED Chain FORWARD (policy DROP 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT tcp -- * * 192.168.0.0/24 0.0.0.0/0 tcp dpt:110 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 0 0 ACCEPT tcp -- * * 192.168.1.0/24 0.0.0.0/0 tcp dpt:110 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:25 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:110 pop3d.cnf RANDFILE = /usr/lib...pop3d.rand [req] default_bits = 1024 encrypt_key = yes distinguidhed_name = req_dn x509_extensions = cert_type prompt = no [req_dn] C=US ST=NY L= New York O=Courier Mail Server OU=Automatically-generated POP3 SSL key CN=localhost [email protected] [cert_type] nsCertType = server

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• Distributing my Application inside a Debian Virtual Machine Image-- How to meet GPL obligations?

  - by bdk

  I have a Linux application I've developed, and I have created a standalone VMWare Image that people can download to try out the application without needing to install and configure a Linux Server. I created this VMWare Image by starting with a base Debian system, installing a bunch of packages and then configuring all the packages and daemons my application depends on. Upon load, the VMWare Image boots right into an X Server running only my application and no Window manager, so its more of a "Virtual Appliance" than a normal Linux Desktop environment. Users generally will never see a command prompt or any application other than my own. (My application itself I have a handle on the licensing issues of) Now I would like to distribute this image, but I'm not sure how to meet my GPL (and other licenses the various Debian components are released under) Obligations. As I understand it, I have two primary obligations to meet. Providing Copyright and License Information for each component I use. As I understand it, all the information I am required to present is located in the /usr/share directory in the Debian, but since my users generally will never touch a console or terminal, they will never see this. Does providing a text file containing a concatenation of all the files inside /usr/share meet this obligation Making source code available for all components I distribute. Since I am not creating the image from source, but from binary packages, I can't provide the actual source code that results in exactly my image being generated. Does providing an ftp mirror and an offer to send that mirror on DVDs of the Debian source debs for all the packages I use meet this obligation? Anything Else I'm required to do to legally distribute this image?

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• Why my VPN doesn't work anymore?

  - by xx77aBs

  I have openvpn server running on debian lenny. There is only one client - and it is running Windows 7 64-bit. This has worked for few months without any problems. And now, let's say for the last 7 days, it doesn't work at all. I connect successfully from client to the server, but I can't access anything through VPN. I have set it up so that all internet traffic is routed through VPN, and now when I connect with the client, the client can't do anything on the net (open any webpage, ping google, anything ...). Can you help me to figure out what's wrong ? I don't know where to start. I've also tried to connect to another openvpn server (I've installed and configured openvpn on another server, and when I try to connect to it result is the same). So I think there's something wrong with client ... Here is my connection log: Wed Apr 04 21:35:59 2012 OpenVPN 2.3-alpha1 Win32-MSVC++ [SSL (OpenSSL)] [LZO2] [PF_INET6] [IPv6 payload 20110522-1 (2.2.0)] built on Feb 21 2012 Enter Management Password: Wed Apr 04 21:35:59 2012 MANAGEMENT: TCP Socket listening on [AF_INET]127.0.0.10:25340 Wed Apr 04 21:35:59 2012 Need hold release from management interface, waiting... Wed Apr 04 21:36:00 2012 MANAGEMENT: Client connected from [AF_INET]127.0.0.10:25340 Wed Apr 04 21:36:00 2012 MANAGEMENT: CMD 'state on' Wed Apr 04 21:36:00 2012 MANAGEMENT: CMD 'log all on' Wed Apr 04 21:36:00 2012 MANAGEMENT: CMD 'hold off' Wed Apr 04 21:36:00 2012 MANAGEMENT: CMD 'hold release' Wed Apr 04 21:36:00 2012 WARNING: No server certificate verification method has been enabled. See http://openvpn.net/howto.html#mitm for more info. Wed Apr 04 21:36:00 2012 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables Wed Apr 04 21:36:00 2012 Socket Buffers: R=[8192->8192] S=[8192->8192] Wed Apr 04 21:36:00 2012 MANAGEMENT: >STATE:1333568160,RESOLVE,,, Wed Apr 04 21:36:00 2012 UDPv4 link local: [undef] Wed Apr 04 21:36:00 2012 UDPv4 link remote: [AF_INET]11.22.33.44:1234 Wed Apr 04 21:36:00 2012 MANAGEMENT: >STATE:1333568160,WAIT,,, Wed Apr 04 21:36:00 2012 MANAGEMENT: >STATE:1333568160,AUTH,,, Wed Apr 04 21:36:00 2012 TLS: Initial packet from [AF_INET]11.22.33.44:1234, sid=ee329574 f15e9e04 Wed Apr 04 21:36:00 2012 VERIFY OK: depth=1, C=US, ST=CA, L=SanFrancisco, O=Fort-Funston, CN=Fort-Funston CA, [email protected] Wed Apr 04 21:36:00 2012 VERIFY OK: depth=0, C=US, ST=CA, L=SanFrancisco, O=Fort-Funston, CN=server_key, [email protected] Wed Apr 04 21:36:01 2012 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key Wed Apr 04 21:36:01 2012 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication Wed Apr 04 21:36:01 2012 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key Wed Apr 04 21:36:01 2012 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication Wed Apr 04 21:36:01 2012 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 1024 bit RSA Wed Apr 04 21:36:01 2012 [server_key] Peer Connection Initiated with [AF_INET]11.22.33.44:1234 Wed Apr 04 21:36:02 2012 MANAGEMENT: >STATE:1333568162,GET_CONFIG,,, Wed Apr 04 21:36:03 2012 SENT CONTROL [server_key]: 'PUSH_REQUEST' (status=1) Wed Apr 04 21:36:03 2012 PUSH: Received control message: 'PUSH_REPLY,redirect-gateway def1,route 172.16.100.1,topology net30,ping 10,ping-restart 120,ifconfig 172.16.100.6 172.16.100.5' Wed Apr 04 21:36:03 2012 OPTIONS IMPORT: timers and/or timeouts modified Wed Apr 04 21:36:03 2012 OPTIONS IMPORT: --ifconfig/up options modified Wed Apr 04 21:36:03 2012 OPTIONS IMPORT: route options modified Wed Apr 04 21:36:03 2012 ROUTE_GATEWAY 192.168.1.1/255.255.255.0 I=15 HWADDR=00:1f:1f:3f:61:55 Wed Apr 04 21:36:03 2012 do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0 Wed Apr 04 21:36:03 2012 MANAGEMENT: >STATE:1333568163,ASSIGN_IP,,172.16.100.6, Wed Apr 04 21:36:03 2012 open_tun, tt->ipv6=0 Wed Apr 04 21:36:03 2012 TAP-WIN32 device [VPN] opened: \\.\Global\{E28FD52B-F6C3-4094-A36A-30CB02FAC7E8}.tap Wed Apr 04 21:36:03 2012 TAP-Win32 Driver Version 9.9 Wed Apr 04 21:36:03 2012 Notified TAP-Win32 driver to set a DHCP IP/netmask of 172.16.100.6/255.255.255.252 on interface {E28FD52B-F6C3-4094-A36A-30CB02FAC7E8} [DHCP-serv: 172.16.100.5, lease-time: 31536000] Wed Apr 04 21:36:03 2012 Successful ARP Flush on interface [31] {E28FD52B-F6C3-4094-A36A-30CB02FAC7E8} Wed Apr 04 21:36:08 2012 TEST ROUTES: 2/2 succeeded len=1 ret=1 a=0 u/d=up Wed Apr 04 21:36:08 2012 C:\Windows\system32\route.exe ADD 11.22.33.44 MASK 255.255.255.255 192.168.1.1 Wed Apr 04 21:36:08 2012 ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=25 and dwForwardType=4 Wed Apr 04 21:36:08 2012 Route addition via IPAPI succeeded [adaptive] Wed Apr 04 21:36:08 2012 C:\Windows\system32\route.exe ADD 0.0.0.0 MASK 128.0.0.0 172.16.100.5 Wed Apr 04 21:36:08 2012 ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=30 and dwForwardType=4 Wed Apr 04 21:36:08 2012 Route addition via IPAPI succeeded [adaptive] Wed Apr 04 21:36:08 2012 C:\Windows\system32\route.exe ADD 128.0.0.0 MASK 128.0.0.0 172.16.100.5 Wed Apr 04 21:36:08 2012 ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=30 and dwForwardType=4 Wed Apr 04 21:36:08 2012 Route addition via IPAPI succeeded [adaptive] Wed Apr 04 21:36:08 2012 MANAGEMENT: >STATE:1333568168,ADD_ROUTES,,, Wed Apr 04 21:36:08 2012 C:\Windows\system32\route.exe ADD 172.16.100.1 MASK 255.255.255.255 172.16.100.5 Wed Apr 04 21:36:08 2012 ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=30 and dwForwardType=4 Wed Apr 04 21:36:08 2012 Route addition via IPAPI succeeded [adaptive] Wed Apr 04 21:36:08 2012 Initialization Sequence Completed Wed Apr 04 21:36:08 2012 MANAGEMENT: >STATE:1333568168,CONNECTED,SUCCESS,172.16.100.6,11.22.33.44 Client's route table after connection with OpenVPN: IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.41 281 0.0.0.0 128.0.0.0 172.16.100.1 172.16.100.6 31 94.23.53.45 255.255.255.255 192.168.1.1 192.168.1.41 25 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 128.0.0.0 128.0.0.0 172.16.100.1 172.16.100.6 31 172.16.100.4 255.255.255.252 On-link 172.16.100.6 286 172.16.100.6 255.255.255.255 On-link 172.16.100.6 286 172.16.100.7 255.255.255.255 On-link 172.16.100.6 286 192.168.1.0 255.255.255.0 On-link 192.168.1.41 281 192.168.1.41 255.255.255.255 On-link 192.168.1.41 281 192.168.1.255 255.255.255.255 On-link 192.168.1.41 281 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 192.168.1.41 281 224.0.0.0 240.0.0.0 On-link 172.16.100.6 286 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 192.168.1.41 281 255.255.255.255 255.255.255.255 On-link 172.16.100.6 286 =========================================================================== Persistent Routes: Network Address Netmask Gateway Address Metric 0.0.0.0 0.0.0.0 192.168.1.1 Default =========================================================================== IPv6 Route Table =========================================================================== Active Routes: If Metric Network Destination Gateway 13 58 ::/0 On-link 1 306 ::1/128 On-link 13 58 2001::/32 On-link 13 306 2001:0:5ef5:79fd:3cc3:6b9:ac7c:14db/128 On-link 15 281 fe80::/64 On-link 31 286 fe80::/64 On-link 13 306 fe80::/64 On-link 13 306 fe80::3cc3:6b9:ac7c:14db/128 On-link 31 286 fe80::7d72:9515:7213:35e3/128 On-link 15 281 fe80::9cec:ce3f:89de:a123/128 On-link 1 306 ff00::/8 On-link 13 306 ff00::/8 On-link 15 281 ff00::/8 On-link 31 286 ff00::/8 On-link =========================================================================== Persistent Routes: None

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• More interruptions than cpu context switches

  - by Christopher Valles

  I have a machine running Debian GNU/Linux 5.0.8 (lenny) 8 cores and 12Gb of RAM. We have one core permanently around 40% ~ 60% wait time and trying to spot what is happening I realized that we have more interruptions than cpu context switches. I found that the normal ratio between context switch and interruptions is around 10x more context switching than interruptions but on my server the values are completely different. backend1:~# vmstat -s 12330788 K total memory 12221676 K used memory 3668624 K active memory 6121724 K inactive memory 109112 K free memory 3929400 K buffer memory 4095536 K swap cache 4194296 K total swap 7988 K used swap 4186308 K free swap 44547459 non-nice user cpu ticks 702408 nice user cpu ticks 13346333 system cpu ticks 1607583668 idle cpu ticks 374043393 IO-wait cpu ticks 4144149 IRQ cpu ticks 3994255 softirq cpu ticks 0 stolen cpu ticks 4445557114 pages paged in 2910596714 pages paged out 128642 pages swapped in 267400 pages swapped out 3519307319 interrupts 2464686911 CPU context switches 1306744317 boot time 11555115 forks Any ideas if that is an issue? And in that case, how can I spot the cause and fix it? Update Following the instructions of the comments and focusing on the core stuck in wait I checked the processes attached to that core and below you can find the list: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ P COMMAND 24 root RT -5 0 0 0 S 0 0.0 0:03.42 7 migration/7 25 root 15 -5 0 0 0 S 0 0.0 0:04.78 7 ksoftirqd/7 26 root RT -5 0 0 0 S 0 0.0 0:00.00 7 watchdog/7 34 root 15 -5 0 0 0 S 0 0.0 1:18.90 7 events/7 83 root 15 -5 0 0 0 S 0 0.0 1:10.68 7 kblockd/7 291 root 15 -5 0 0 0 S 0 0.0 0:00.00 7 aio/7 569 root 15 -5 0 0 0 S 0 0.0 0:00.00 7 ata/7 1545 root 15 -5 0 0 0 S 0 0.0 0:00.00 7 ksnapd 1644 root 15 -5 0 0 0 S 0 0.0 0:36.73 7 kjournald 1725 root 16 -4 16940 1152 488 S 0 0.0 0:00.00 7 udevd 2342 root 20 0 8828 1140 956 S 0 0.0 0:00.00 7 sh 2375 root 20 0 8848 1220 1016 S 0 0.0 0:00.00 7 locate 2421 root 30 10 8896 1268 1016 S 0 0.0 0:00.00 7 updatedb.findut 2430 root 30 10 58272 49m 616 S 0 0.4 0:17.44 7 sort 2431 root 30 10 3792 448 360 S 0 0.0 0:00.00 7 frcode 2682 root 15 -5 0 0 0 S 0 0.0 3:25.98 7 kjournald 2683 root 15 -5 0 0 0 S 0 0.0 0:00.64 7 kjournald 2687 root 15 -5 0 0 0 S 0 0.0 1:31.30 7 kjournald 3261 root 15 -5 0 0 0 S 0 0.0 2:30.56 7 kondemand/7 3364 root 20 0 3796 596 476 S 0 0.0 0:00.00 7 acpid 3575 root 20 0 8828 1140 956 S 0 0.0 0:00.00 7 sh 3597 root 20 0 8848 1216 1016 S 0 0.0 0:00.00 7 locate 3603 root 30 10 8896 1268 1016 S 0 0.0 0:00.00 7 updatedb.findut 3612 root 30 10 58272 49m 616 S 0 0.4 0:27.04 7 sort 3655 root 20 0 11056 2852 516 S 0 0.0 5:36.46 7 redis-server 3706 root 20 0 19832 1056 816 S 0 0.0 0:01.64 7 cron 3746 root 20 0 3796 580 484 S 0 0.0 0:00.00 7 getty 3748 root 20 0 3796 580 484 S 0 0.0 0:00.00 7 getty 7674 root 20 0 28376 1000 736 S 0 0.0 0:00.00 7 cron 7675 root 20 0 8828 1140 956 S 0 0.0 0:00.00 7 sh 7708 root 30 10 58272 49m 616 S 0 0.4 0:03.36 7 sort 22049 root 20 0 8828 1136 956 S 0 0.0 0:00.00 7 sh 22095 root 20 0 8848 1220 1016 S 0 0.0 0:00.00 7 locate 22099 root 30 10 8896 1264 1016 S 0 0.0 0:00.00 7 updatedb.findut 22108 root 30 10 58272 49m 616 S 0 0.4 0:44.55 7 sort 22109 root 30 10 3792 452 360 S 0 0.0 0:00.00 7 frcode 26927 root 20 0 8828 1140 956 S 0 0.0 0:00.00 7 sh 26947 root 20 0 8848 1216 1016 S 0 0.0 0:00.00 7 locate 26951 root 30 10 8896 1268 1016 S 0 0.0 0:00.00 7 updatedb.findut 26960 root 30 10 58272 49m 616 S 0 0.4 0:10.24 7 sort 26961 root 30 10 3792 452 360 S 0 0.0 0:00.00 7 frcode 27952 root 20 0 65948 3028 2400 S 0 0.0 0:00.00 7 sshd 30731 root 20 0 0 0 0 S 0 0.0 0:01.34 7 pdflush 31204 root 20 0 0 0 0 S 0 0.0 0:00.24 7 pdflush 21857 deploy 20 0 1227m 2240 868 S 0 0.0 2:44.22 7 nginx 21858 deploy 20 0 1228m 2784 868 S 0 0.0 2:42.45 7 nginx 21862 deploy 20 0 1228m 2732 868 S 0 0.0 2:43.90 7 nginx 21869 deploy 20 0 1228m 2840 868 S 0 0.0 2:44.14 7 nginx 27994 deploy 20 0 19372 2216 1380 S 0 0.0 0:00.00 7 bash 28493 deploy 20 0 331m 32m 16m S 4 0.3 0:00.40 7 apache2 21856 deploy 20 0 1228m 2844 868 S 0 0.0 2:43.64 7 nginx 3622 nobody 30 10 21156 10m 916 D 0 0.1 4:42.31 7 find 7716 nobody 30 10 12268 1280 888 D 0 0.0 0:43.50 7 find 22116 nobody 30 10 12612 1696 916 D 0 0.0 6:32.26 7 find 26968 nobody 30 10 12268 1284 888 D 0 0.0 1:56.92 7 find Update As suggested I take a look at /proc/interrupts and below the info there: CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 0: 35 0 0 1469085485 0 0 0 0 IO-APIC-edge timer 1: 0 0 0 8 0 0 0 0 IO-APIC-edge i8042 8: 0 0 0 1 0 0 0 0 IO-APIC-edge rtc0 9: 0 0 0 0 0 0 0 0 IO-APIC-fasteoi acpi 12: 0 0 0 105 0 0 0 0 IO-APIC-edge i8042 16: 0 0 0 0 0 0 0 580212114 IO-APIC-fasteoi 3w-9xxx, uhci_hcd:usb1 18: 0 0 142 0 0 0 0 0 IO-APIC-fasteoi uhci_hcd:usb6, ehci_hcd:usb7 19: 9 0 0 0 0 0 0 0 IO-APIC-fasteoi uhci_hcd:usb3, uhci_hcd:usb5 21: 0 0 0 0 0 0 0 0 IO-APIC-fasteoi uhci_hcd:usb2 23: 0 0 0 0 0 0 0 0 IO-APIC-fasteoi uhci_hcd:usb4, ehci_hcd:usb8 1273: 0 0 1600400502 0 0 0 0 0 PCI-MSI-edge eth0 1274: 0 0 0 0 0 0 0 0 PCI-MSI-edge ahci NMI: 0 0 0 0 0 0 0 0 Non-maskable interrupts LOC: 214252181 69439018 317298553 21943690 72562482 56448835 137923978 407514738 Local timer interrupts RES: 27516446 16935944 26430972 44957009 24935543 19881887 57746906 24298747 Rescheduling interrupts CAL: 10655 10705 10685 10567 10689 10669 10667 396 function call interrupts TLB: 529548 462587 801138 596193 922202 747313 2027966 946594 TLB shootdowns TRM: 0 0 0 0 0 0 0 0 Thermal event interrupts THR: 0 0 0 0 0 0 0 0 Threshold APIC interrupts SPU: 0 0 0 0 0 0 0 0 Spurious interrupts ERR: 0 All the values seems more or less the same for all the cores but this one IO-APIC-fasteoi 3w-9xxx, uhci_hcd:usb1 only affects to the core 7 (the same with the wait time of 40% ~ 60%) could be something attached to the usb port causing the issue? Thanks in advanced

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• Why do ICMP Redirct Host happen?

  - by El Barto

  I'm setting up a Debian box as a router for 4 subnets. For that I have defined 4 virtual interfaces on the NIC where the LAN is connected (eth1). eth1 Link encap:Ethernet HWaddr 94:0c:6d:82:0d:98 inet addr:10.1.1.1 Bcast:10.1.1.255 Mask:255.255.255.0 inet6 addr: fe80::960c:6dff:fe82:d98/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:6026521 errors:0 dropped:0 overruns:0 frame:0 TX packets:35331299 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:673201397 (642.0 MiB) TX bytes:177276932 (169.0 MiB) Interrupt:19 Base address:0x6000 eth1:0 Link encap:Ethernet HWaddr 94:0c:6d:82:0d:98 inet addr:10.1.2.1 Bcast:10.1.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:19 Base address:0x6000 eth1:1 Link encap:Ethernet HWaddr 94:0c:6d:82:0d:98 inet addr:10.1.3.1 Bcast:10.1.3.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:19 Base address:0x6000 eth1:2 Link encap:Ethernet HWaddr 94:0c:6d:82:0d:98 inet addr:10.1.4.1 Bcast:10.1.4.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:19 Base address:0x6000 eth2 Link encap:Ethernet HWaddr 6c:f0:49:a4:47:38 inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::6ef0:49ff:fea4:4738/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:199809345 errors:0 dropped:0 overruns:0 frame:0 TX packets:158362936 errors:0 dropped:0 overruns:0 carrier:1 collisions:0 txqueuelen:1000 RX bytes:3656983762 (3.4 GiB) TX bytes:1715848473 (1.5 GiB) Interrupt:27 eth3 Link encap:Ethernet HWaddr 94:0c:6d:82:c8:72 inet addr:192.168.2.5 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::960c:6dff:fe82:c872/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:110814 errors:0 dropped:0 overruns:0 frame:0 TX packets:73386 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:16044901 (15.3 MiB) TX bytes:42125647 (40.1 MiB) Interrupt:20 Base address:0x2000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:22351 errors:0 dropped:0 overruns:0 frame:0 TX packets:22351 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2625143 (2.5 MiB) TX bytes:2625143 (2.5 MiB) tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.8.0.1 P-t-P:10.8.0.2 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:41358924 errors:0 dropped:0 overruns:0 frame:0 TX packets:23116350 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:3065505744 (2.8 GiB) TX bytes:1324358330 (1.2 GiB) I have two other computers connected to this network. One has IP 10.1.1.12 (subnet mask 255.255.255.0) and the other one 10.1.2.20 (subnet mask 255.255.255.0). I want to be able to reach 10.1.1.12 from 10.1.2.20. Since packet forwarding is enabled in the router and the policy of the FORWARD chain is ACCEPT (and there are no other rules), I understand that there should be no problem to ping from 10.1.2.20 to 10.1.1.12 going through the router. However, this is what I get: $ ping -c15 10.1.1.12 PING 10.1.1.12 (10.1.1.12): 56 data bytes Request timeout for icmp_seq 0 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 81d4 0 0000 3f 01 e2b3 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 1 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 899b 0 0000 3f 01 daec 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 2 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 78fe 0 0000 3f 01 eb89 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 3 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 14b8 0 0000 3f 01 4fd0 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 4 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 8ef7 0 0000 3f 01 d590 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 5 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 ec9d 0 0000 3f 01 77ea 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 6 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 70e6 0 0000 3f 01 f3a1 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 7 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 b0d2 0 0000 3f 01 b3b5 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 8 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 f8b4 0 0000 3f 01 6bd3 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 9 Request timeout for icmp_seq 10 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 1c95 0 0000 3f 01 47f3 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 11 Request timeout for icmp_seq 12 Request timeout for icmp_seq 13 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 62bc 0 0000 3f 01 01cc 10.1.2.20 10.1.1.12 Why does this happen? From what I've read the Redirect Host response has something to do with the fact that the two hosts are in the same network and there being a shorter route (or so I understood). They are in fact in the same physical network, but why would there be a better route if they are not on the same subnet (they can't see each other)? What am I missing? Some extra info you might want to see: # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.8.0.2 0.0.0.0 255.255.255.255 UH 0 0 0 tun0 127.0.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 lo 192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth3 10.8.0.0 10.8.0.2 255.255.255.0 UG 0 0 0 tun0 192.168.1.0 0.0.0.0 255.255.255.0 U 1 0 0 eth2 10.1.4.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 10.1.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 10.1.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 10.1.3.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth2 0.0.0.0 192.168.2.1 0.0.0.0 UG 100 0 0 eth3 # iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination # iptables -L -n -t nat Chain PREROUTING (policy ACCEPT) target prot opt source destination Chain POSTROUTING (policy ACCEPT) target prot opt source destination MASQUERADE all -- !10.0.0.0/8 10.0.0.0/8 MASQUERADE all -- 10.0.0.0/8 !10.0.0.0/8 Chain OUTPUT (policy ACCEPT) target prot opt source destination

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• Why do ICMP Redirect Host happen?

  - by El Barto

  I'm setting up a Debian box as a router for 4 subnets. For that I have defined 4 virtual interfaces on the NIC where the LAN is connected (eth1). eth1 Link encap:Ethernet HWaddr 94:0c:6d:82:0d:98 inet addr:10.1.1.1 Bcast:10.1.1.255 Mask:255.255.255.0 inet6 addr: fe80::960c:6dff:fe82:d98/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:6026521 errors:0 dropped:0 overruns:0 frame:0 TX packets:35331299 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:673201397 (642.0 MiB) TX bytes:177276932 (169.0 MiB) Interrupt:19 Base address:0x6000 eth1:0 Link encap:Ethernet HWaddr 94:0c:6d:82:0d:98 inet addr:10.1.2.1 Bcast:10.1.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:19 Base address:0x6000 eth1:1 Link encap:Ethernet HWaddr 94:0c:6d:82:0d:98 inet addr:10.1.3.1 Bcast:10.1.3.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:19 Base address:0x6000 eth1:2 Link encap:Ethernet HWaddr 94:0c:6d:82:0d:98 inet addr:10.1.4.1 Bcast:10.1.4.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:19 Base address:0x6000 eth2 Link encap:Ethernet HWaddr 6c:f0:49:a4:47:38 inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::6ef0:49ff:fea4:4738/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:199809345 errors:0 dropped:0 overruns:0 frame:0 TX packets:158362936 errors:0 dropped:0 overruns:0 carrier:1 collisions:0 txqueuelen:1000 RX bytes:3656983762 (3.4 GiB) TX bytes:1715848473 (1.5 GiB) Interrupt:27 eth3 Link encap:Ethernet HWaddr 94:0c:6d:82:c8:72 inet addr:192.168.2.5 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::960c:6dff:fe82:c872/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:110814 errors:0 dropped:0 overruns:0 frame:0 TX packets:73386 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:16044901 (15.3 MiB) TX bytes:42125647 (40.1 MiB) Interrupt:20 Base address:0x2000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:22351 errors:0 dropped:0 overruns:0 frame:0 TX packets:22351 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2625143 (2.5 MiB) TX bytes:2625143 (2.5 MiB) tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.8.0.1 P-t-P:10.8.0.2 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:41358924 errors:0 dropped:0 overruns:0 frame:0 TX packets:23116350 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:3065505744 (2.8 GiB) TX bytes:1324358330 (1.2 GiB) I have two other computers connected to this network. One has IP 10.1.1.12 (subnet mask 255.255.255.0) and the other one 10.1.2.20 (subnet mask 255.255.255.0). I want to be able to reach 10.1.1.12 from 10.1.2.20. Since packet forwarding is enabled in the router and the policy of the FORWARD chain is ACCEPT (and there are no other rules), I understand that there should be no problem to ping from 10.1.2.20 to 10.1.1.12 going through the router. However, this is what I get: $ ping -c15 10.1.1.12 PING 10.1.1.12 (10.1.1.12): 56 data bytes Request timeout for icmp_seq 0 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 81d4 0 0000 3f 01 e2b3 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 1 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 899b 0 0000 3f 01 daec 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 2 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 78fe 0 0000 3f 01 eb89 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 3 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 14b8 0 0000 3f 01 4fd0 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 4 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 8ef7 0 0000 3f 01 d590 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 5 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 ec9d 0 0000 3f 01 77ea 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 6 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 70e6 0 0000 3f 01 f3a1 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 7 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 b0d2 0 0000 3f 01 b3b5 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 8 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 f8b4 0 0000 3f 01 6bd3 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 9 Request timeout for icmp_seq 10 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 1c95 0 0000 3f 01 47f3 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 11 Request timeout for icmp_seq 12 Request timeout for icmp_seq 13 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 62bc 0 0000 3f 01 01cc 10.1.2.20 10.1.1.12 Why does this happen? From what I've read the Redirect Host response has something to do with the fact that the two hosts are in the same network and there being a shorter route (or so I understood). They are in fact in the same physical network, but why would there be a better route if they are not on the same subnet (they can't see each other)? What am I missing? Some extra info you might want to see: # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.8.0.2 0.0.0.0 255.255.255.255 UH 0 0 0 tun0 127.0.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 lo 192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth3 10.8.0.0 10.8.0.2 255.255.255.0 UG 0 0 0 tun0 192.168.1.0 0.0.0.0 255.255.255.0 U 1 0 0 eth2 10.1.4.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 10.1.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 10.1.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 10.1.3.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth2 0.0.0.0 192.168.2.1 0.0.0.0 UG 100 0 0 eth3 # iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination # iptables -L -n -t nat Chain PREROUTING (policy ACCEPT) target prot opt source destination Chain POSTROUTING (policy ACCEPT) target prot opt source destination MASQUERADE all -- !10.0.0.0/8 10.0.0.0/8 MASQUERADE all -- 10.0.0.0/8 !10.0.0.0/8 Chain OUTPUT (policy ACCEPT) target prot opt source destination

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• Slow filesystem access

  - by danneh3826

  I'm trying to diagnose a slow filesystem issue on a server I look after. It's been ongoing for quite some time, and I've run out of ideas as to what I can try. Here's the thick of it. The server itself is a Dell Poweredge T310. It has 4 SAS hard drives in it, configured at RAID5, and is running Citrix XenServer 5.6. The VM is a (relatively) old Debian 5.0.6 installation. It's given 4 cores, and 4Gb's of RAM. It has 3 volumes. A 10Gb volume (ext3) for the system, 980Gb volume (xfs) for data (~94% full), and another 200Gb volume (xfs) for data (~13% full). Now here's the weird thing. Read/write access to the 980Gb volume is really slow. I might get 5Mb/s out of it if I'm lucky. At first I figured it was actually disk access in the system, or at a hypervisor level, but ruled that out entirely as other VMs on the same host are running perfectly fine (a good couple hundred Mb/s disk r/w access). So then I started to target this particular VM. I started thinking it was XFS, but to prove it I wasn't going to attempt to change the filesystem on the 980Gb drive, with years and years of billions of files on there. So I provisioned the 200Gb drive, and did the same read/write test (basically dd), and got a good couple hundred Mb/s r/w access to it. So that ruled out the VM, the hardware, and the filesystem type. There's also a lot of these in /var/log/kern.log; (sorry, this is quite long) Sep 4 10:16:59 uriel kernel: [32571790.564689] httpd: page allocation failure. order:5, mode:0x4020 Sep 4 10:16:59 uriel kernel: [32571790.564693] Pid: 7318, comm: httpd Not tainted 2.6.32-4-686-bigmem #1 Sep 4 10:16:59 uriel kernel: [32571790.564696] Call Trace: Sep 4 10:16:59 uriel kernel: [32571790.564705] [<c1092a4d>] ? __alloc_pages_nodemask+0x476/0x4e0 Sep 4 10:16:59 uriel kernel: [32571790.564711] [<c1092ac3>] ? __get_free_pages+0xc/0x17 Sep 4 10:16:59 uriel kernel: [32571790.564716] [<c10b632e>] ? __kmalloc+0x30/0x128 Sep 4 10:16:59 uriel kernel: [32571790.564722] [<c11dd774>] ? pskb_expand_head+0x4f/0x157 Sep 4 10:16:59 uriel kernel: [32571790.564727] [<c11ddbbf>] ? __pskb_pull_tail+0x41/0x1fb Sep 4 10:16:59 uriel kernel: [32571790.564732] [<c11e4882>] ? dev_queue_xmit+0xe4/0x38e Sep 4 10:16:59 uriel kernel: [32571790.564738] [<c1205902>] ? ip_finish_output+0x0/0x5c Sep 4 10:16:59 uriel kernel: [32571790.564742] [<c12058c7>] ? ip_finish_output2+0x187/0x1c2 Sep 4 10:16:59 uriel kernel: [32571790.564747] [<c1204dc8>] ? ip_local_out+0x15/0x17 Sep 4 10:16:59 uriel kernel: [32571790.564751] [<c12055a9>] ? ip_queue_xmit+0x31e/0x379 Sep 4 10:16:59 uriel kernel: [32571790.564758] [<c1279a90>] ? _spin_lock_bh+0x8/0x1e Sep 4 10:16:59 uriel kernel: [32571790.564767] [<eda15a8d>] ? __nf_ct_refresh_acct+0x66/0xa4 [nf_conntrack] Sep 4 10:16:59 uriel kernel: [32571790.564773] [<c103bf42>] ? _local_bh_enable_ip+0x16/0x6e Sep 4 10:16:59 uriel kernel: [32571790.564779] [<c1214593>] ? tcp_transmit_skb+0x595/0x5cc Sep 4 10:16:59 uriel kernel: [32571790.564785] [<c1005c4f>] ? xen_restore_fl_direct_end+0x0/0x1 Sep 4 10:16:59 uriel kernel: [32571790.564791] [<c12165ea>] ? tcp_write_xmit+0x7a3/0x874 Sep 4 10:16:59 uriel kernel: [32571790.564796] [<c121203a>] ? tcp_ack+0x1611/0x1802 Sep 4 10:16:59 uriel kernel: [32571790.564801] [<c10055ec>] ? xen_force_evtchn_callback+0xc/0x10 Sep 4 10:16:59 uriel kernel: [32571790.564806] [<c121392f>] ? tcp_established_options+0x1d/0x8b Sep 4 10:16:59 uriel kernel: [32571790.564811] [<c1213be4>] ? tcp_current_mss+0x38/0x53 Sep 4 10:16:59 uriel kernel: [32571790.564816] [<c1216701>] ? __tcp_push_pending_frames+0x1e/0x50 Sep 4 10:16:59 uriel kernel: [32571790.564821] [<c1212246>] ? tcp_data_snd_check+0x1b/0xd2 Sep 4 10:16:59 uriel kernel: [32571790.564825] [<c1212de3>] ? tcp_rcv_established+0x5d0/0x626 Sep 4 10:16:59 uriel kernel: [32571790.564831] [<c121902c>] ? tcp_v4_do_rcv+0x15f/0x2cf Sep 4 10:16:59 uriel kernel: [32571790.564835] [<c1219561>] ? tcp_v4_rcv+0x3c5/0x5c0 Sep 4 10:16:59 uriel kernel: [32571790.564841] [<c120197e>] ? ip_local_deliver_finish+0x10c/0x18c Sep 4 10:16:59 uriel kernel: [32571790.564846] [<c12015a4>] ? ip_rcv_finish+0x2c4/0x2d8 Sep 4 10:16:59 uriel kernel: [32571790.564852] [<c11e3b71>] ? netif_receive_skb+0x3bb/0x3d6 Sep 4 10:16:59 uriel kernel: [32571790.564864] [<ed823efc>] ? xennet_poll+0x9b8/0xafc [xen_netfront] Sep 4 10:16:59 uriel kernel: [32571790.564869] [<c11e40ee>] ? net_rx_action+0x96/0x194 Sep 4 10:16:59 uriel kernel: [32571790.564874] [<c103bd4c>] ? __do_softirq+0xaa/0x151 Sep 4 10:16:59 uriel kernel: [32571790.564878] [<c103be24>] ? do_softirq+0x31/0x3c Sep 4 10:16:59 uriel kernel: [32571790.564883] [<c103befa>] ? irq_exit+0x26/0x58 Sep 4 10:16:59 uriel kernel: [32571790.564890] [<c118ff9f>] ? xen_evtchn_do_upcall+0x12c/0x13e Sep 4 10:16:59 uriel kernel: [32571790.564896] [<c1008c3f>] ? xen_do_upcall+0x7/0xc Sep 4 10:16:59 uriel kernel: [32571790.564899] Mem-Info: Sep 4 10:16:59 uriel kernel: [32571790.564902] DMA per-cpu: Sep 4 10:16:59 uriel kernel: [32571790.564905] CPU 0: hi: 0, btch: 1 usd: 0 Sep 4 10:16:59 uriel kernel: [32571790.564908] CPU 1: hi: 0, btch: 1 usd: 0 Sep 4 10:16:59 uriel kernel: [32571790.564911] CPU 2: hi: 0, btch: 1 usd: 0 Sep 4 10:16:59 uriel kernel: [32571790.564914] CPU 3: hi: 0, btch: 1 usd: 0 Sep 4 10:16:59 uriel kernel: [32571790.564916] Normal per-cpu: Sep 4 10:16:59 uriel kernel: [32571790.564919] CPU 0: hi: 186, btch: 31 usd: 175 Sep 4 10:16:59 uriel kernel: [32571790.564922] CPU 1: hi: 186, btch: 31 usd: 165 Sep 4 10:16:59 uriel kernel: [32571790.564925] CPU 2: hi: 186, btch: 31 usd: 30 Sep 4 10:16:59 uriel kernel: [32571790.564928] CPU 3: hi: 186, btch: 31 usd: 140 Sep 4 10:16:59 uriel kernel: [32571790.564931] HighMem per-cpu: Sep 4 10:16:59 uriel kernel: [32571790.564933] CPU 0: hi: 186, btch: 31 usd: 159 Sep 4 10:16:59 uriel kernel: [32571790.564936] CPU 1: hi: 186, btch: 31 usd: 22 Sep 4 10:16:59 uriel kernel: [32571790.564939] CPU 2: hi: 186, btch: 31 usd: 24 Sep 4 10:16:59 uriel kernel: [32571790.564942] CPU 3: hi: 186, btch: 31 usd: 13 Sep 4 10:16:59 uriel kernel: [32571790.564947] active_anon:485974 inactive_anon:121138 isolated_anon:0 Sep 4 10:16:59 uriel kernel: [32571790.564948] active_file:75215 inactive_file:79510 isolated_file:0 Sep 4 10:16:59 uriel kernel: [32571790.564949] unevictable:0 dirty:516 writeback:15 unstable:0 Sep 4 10:16:59 uriel kernel: [32571790.564950] free:230770 slab_reclaimable:36661 slab_unreclaimable:21249 Sep 4 10:16:59 uriel kernel: [32571790.564952] mapped:20016 shmem:29450 pagetables:5600 bounce:0 Sep 4 10:16:59 uriel kernel: [32571790.564958] DMA free:2884kB min:72kB low:88kB high:108kB active_anon:0kB inactive_anon:0kB active_file:5692kB inactive_file:724kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15872kB mlocked:0kB dirty:8kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:5112kB slab_unreclaimable:156kB kernel_stack:56kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no Sep 4 10:16:59 uriel kernel: [32571790.564964] lowmem_reserve[]: 0 698 4143 4143 Sep 4 10:16:59 uriel kernel: [32571790.564977] Normal free:143468kB min:3344kB low:4180kB high:5016kB active_anon:56kB inactive_anon:2068kB active_file:131812kB inactive_file:131728kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:715256kB mlocked:0kB dirty:156kB writeback:0kB mapped:308kB shmem:4kB slab_reclaimable:141532kB slab_unreclaimable:84840kB kernel_stack:1928kB pagetables:22400kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no Sep 4 10:16:59 uriel kernel: [32571790.564983] lowmem_reserve[]: 0 0 27559 27559 Sep 4 10:16:59 uriel kernel: [32571790.564995] HighMem free:776728kB min:512kB low:4636kB high:8760kB active_anon:1943840kB inactive_anon:482484kB active_file:163356kB inactive_file:185588kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3527556kB mlocked:0kB dirty:1900kB writeback:60kB mapped:79756kB shmem:117796kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no Sep 4 10:16:59 uriel kernel: [32571790.565001] lowmem_reserve[]: 0 0 0 0 Sep 4 10:16:59 uriel kernel: [32571790.565011] DMA: 385*4kB 16*8kB 3*16kB 9*32kB 6*64kB 2*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2900kB Sep 4 10:16:59 uriel kernel: [32571790.565032] Normal: 21505*4kB 6508*8kB 273*16kB 24*32kB 3*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 143412kB Sep 4 10:16:59 uriel kernel: [32571790.565054] HighMem: 949*4kB 8859*8kB 7063*16kB 6186*32kB 4631*64kB 727*128kB 6*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 776604kB Sep 4 10:16:59 uriel kernel: [32571790.565076] 198980 total pagecache pages Sep 4 10:16:59 uriel kernel: [32571790.565079] 14850 pages in swap cache Sep 4 10:16:59 uriel kernel: [32571790.565082] Swap cache stats: add 2556273, delete 2541423, find 82961339/83153719 Sep 4 10:16:59 uriel kernel: [32571790.565085] Free swap = 250592kB Sep 4 10:16:59 uriel kernel: [32571790.565087] Total swap = 385520kB Sep 4 10:16:59 uriel kernel: [32571790.575454] 1073152 pages RAM Sep 4 10:16:59 uriel kernel: [32571790.575458] 888834 pages HighMem Sep 4 10:16:59 uriel kernel: [32571790.575461] 11344 pages reserved Sep 4 10:16:59 uriel kernel: [32571790.575463] 1090481 pages shared Sep 4 10:16:59 uriel kernel: [32571790.575465] 737188 pages non-shared Now, I've no idea what this means. There's plenty of free memory; total used free shared buffers cached Mem: 4247232 3455904 791328 0 5348 736412 -/+ buffers/cache: 2714144 1533088 Swap: 385520 131004 254516 Though now I see the swap is relatively low in size, but would that matter? I've been starting to think about fragmentation, or inode usage on that large partition, but a recent fsck on it showed is as only like 0.5% fragmented. Which leaves me with inode usage, but how much of an effect really would a large inode table or filesystem TOC have? I've love to hear people's opinions on this. It's driving me potty! df -h output; Filesystem Size Used Avail Use% Mounted on /dev/xvda1 9.5G 6.6G 2.4G 74% / tmpfs 2.1G 0 2.1G 0% /lib/init/rw udev 10M 520K 9.5M 6% /dev tmpfs 2.1G 0 2.1G 0% /dev/shm /dev/xvdb 980G 921G 59G 94% /data

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• After connecting wlan0 to bridge interface (and then removing it), can't connect to AP

  - by gmonk

  I'm on a laptop running Debian Jessie with kernel 3.13-1-amd64; lspci shows that my wireless NIC + driver is 04:00.0 Network controller: Intel Corporation Wireless 3160 (rev 83) Subsystem: Intel Corporation Dual Band Wireless-AC 3160 Kernel driver in use: iwlwifi This has been working without any problems, until I tried creating a bridge for lxc containers to use. I did the same thing as this person here: How-to set up a network bridge on a laptop for LXC use? -- and ended up having the same problem as this poster did, so I decided to "undo" my actions. This hasn't been successful. Actions taken so far: To configure the bridge: #> ip link add type veth #> iw dev wlan0 set 4addr on #> ifconfig veth0 up #> brctl addbr br0 #> brctl addif br0 wlan0 #> brctl addif br0 veth0 #> ifconfig br0 192.168.0.4/24 #> ifconfig wlan0 0.0.0.0 To "deconfigure": #> brctl delif br0 wlan0 #> brctl delif br0 veth0 #> iw dev wlan0 set 4addr off #> ifconfig veth0 down #> ifconfig wlan0 down #> ifconfig br0 down #> brctl delbr br0 Now, dmesg and /var/log/syslog show repeated attempts at connecting to the AP that was working before, which fail after authentication: May 27 09:16:01 myhostname kernel: [11350.757172] wlan0: authenticate with 00:18:f8:54:a3:d6 May 27 09:16:01 myhostname kernel: [11350.759036] wlan0: send auth to 00:18:f8:54:a3:d6 (try 1/3) May 27 09:16:01 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: scanning -> authenticating May 27 09:16:01 myhostname wpa_supplicant[8946]: wlan0: Trying to associate with 00:18:f8:54:a3:d6 (SSID='myaccesspoint' freq=2437 MHz) May 27 09:16:01 myhostname kernel: [11350.762615] wlan0: authenticated May 27 09:16:01 myhostname kernel: [11350.762753] iwlwifi 0000:04:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP May 27 09:16:01 myhostname kernel: [11350.762755] iwlwifi 0000:04:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP May 27 09:16:01 myhostname kernel: [11350.765080] wlan0: associate with 00:18:f8:54:a3:d6 (try 1/3) May 27 09:16:01 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: authenticating -> associating May 27 09:16:01 myhostname kernel: [11350.767474] wlan0: RX AssocResp from 00:18:f8:54:a3:d6 (capab=0x411 status=12 aid=0) May 27 09:16:01 myhostname kernel: [11350.767476] wlan0: 00:18:f8:54:a3:d6 denied association (code=12) May 27 09:16:01 myhostname wpa_supplicant[8946]: wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:18:f8:54:a3:d6 status_code=12 May 27 09:16:01 myhostname kernel: [11350.788475] wlan0: deauthenticating from 00:18:f8:54:a3:d6 by local choice (reason=3) May 27 09:16:01 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: associating -> disconnected May 27 09:16:01 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: disconnected -> scanning May 27 09:16:02 myhostname dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 14 May 27 09:16:04 myhostname wpa_supplicant[8946]: wlan0: SME: Trying to authenticate with 00:18:f8:54:a3:d6 (SSID='myaccesspoint' freq=2437 MHz) May 27 09:16:04 myhostname kernel: [11354.559579] wlan0: authenticate with 00:18:f8:54:a3:d6 May 27 09:16:04 myhostname kernel: [11354.561458] wlan0: send auth to 00:18:f8:54:a3:d6 (try 1/3) May 27 09:16:04 myhostname wpa_supplicant[8946]: wlan0: Trying to associate with 00:18:f8:54:a3:d6 (SSID='myaccesspoint' freq=2437 MHz) May 27 09:16:04 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: scanning -> associating May 27 09:16:04 myhostname kernel: [11354.563445] wlan0: authenticated May 27 09:16:04 myhostname kernel: [11354.563631] iwlwifi 0000:04:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP May 27 09:16:04 myhostname kernel: [11354.563633] iwlwifi 0000:04:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP May 27 09:16:04 myhostname kernel: [11354.565727] wlan0: associate with 00:18:f8:54:a3:d6 (try 1/3) May 27 09:16:04 myhostname wpa_supplicant[8946]: wlan0: Associated with 00:18:f8:54:a3:d6 May 27 09:16:04 myhostname kernel: [11354.568091] wlan0: RX AssocResp from 00:18:f8:54:a3:d6 (capab=0x411 status=0 aid=9) May 27 09:16:04 myhostname kernel: [11354.569030] wlan0: associated May 27 09:16:04 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: associating -> associated May 27 09:16:05 myhostname kernel: [11354.978204] wlan0: deauthenticated from 00:18:f8:54:a3:d6 (Reason: 15) May 27 09:16:05 myhostname wpa_supplicant[8946]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:18:f8:54:a3:d6 reason=15 May 27 09:16:05 myhostname kernel: [11354.992729] cfg80211: Calling CRDA to update world regulatory domain May 27 09:16:05 myhostname kernel: [11354.995004] cfg80211: World regulatory domain updated: May 27 09:16:05 myhostname kernel: [11354.995005] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) May 27 09:16:05 myhostname kernel: [11354.995006] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm) May 27 09:16:05 myhostname kernel: [11354.995007] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm) May 27 09:16:05 myhostname kernel: [11354.995007] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm) May 27 09:16:05 myhostname kernel: [11354.995008] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm) May 27 09:16:05 myhostname kernel: [11354.995009] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm) May 27 09:16:05 myhostname kernel: [11354.995010] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm) May 27 09:16:05 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: associated -> disconnected May 27 09:16:05 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: disconnected -> scanning May 27 09:16:09 myhostname wpa_supplicant[8946]: wlan0: SME: Trying to authenticate with 00:18:f8:54:a3:d6 (SSID='myaccesspoint' freq=2437 MHz) May 27 09:16:09 myhostname kernel: [11358.763968] wlan0: authenticate with 00:18:f8:54:a3:d6 May 27 09:16:09 myhostname kernel: [11358.765796] wlan0: send auth to 00:18:f8:54:a3:d6 (try 1/3) May 27 09:16:09 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: scanning -> authenticating May 27 09:16:09 myhostname wpa_supplicant[8946]: wlan0: Trying to associate with 00:18:f8:54:a3:d6 (SSID='myaccesspoint' freq=2437 MHz) May 27 09:16:09 myhostname kernel: [11358.769957] wlan0: authenticated May 27 09:16:09 myhostname kernel: [11358.770102] iwlwifi 0000:04:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP May 27 09:16:09 myhostname kernel: [11358.770104] iwlwifi 0000:04:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP May 27 09:16:09 myhostname kernel: [11358.770846] wlan0: associate with 00:18:f8:54:a3:d6 (try 1/3) May 27 09:16:09 myhostname kernel: [11358.773358] wlan0: RX AssocResp from 00:18:f8:54:a3:d6 (capab=0x411 status=12 aid=0) May 27 09:16:09 myhostname kernel: [11358.773361] wlan0: 00:18:f8:54:a3:d6 denied association (code=12) May 27 09:16:09 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: authenticating -> associating May 27 09:16:09 myhostname wpa_supplicant[8946]: wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:18:f8:54:a3:d6 status_code=12 May 27 09:16:09 myhostname kernel: [11358.802187] wlan0: deauthenticating from 00:18:f8:54:a3:d6 by local choice (reason=3) May 27 09:16:09 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: associating -> disconnected May 27 09:16:09 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: disconnected -> scanning May 27 09:16:12 myhostname wpa_supplicant[8946]: wlan0: SME: Trying to authenticate with 00:18:f8:54:a3:d6 (SSID='myaccesspoint' freq=2437 MHz) May 27 09:16:12 myhostname kernel: [11362.573442] wlan0: authenticate with 00:18:f8:54:a3:d6 May 27 09:16:12 myhostname kernel: [11362.575270] wlan0: send auth to 00:18:f8:54:a3:d6 (try 1/3) May 27 09:16:12 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: scanning -> authenticating May 27 09:16:12 myhostname wpa_supplicant[8946]: wlan0: Trying to associate with 00:18:f8:54:a3:d6 (SSID='myaccesspoint' freq=2437 MHz) May 27 09:16:12 myhostname kernel: [11362.580334] wlan0: authenticated May 27 09:16:12 myhostname kernel: [11362.580503] iwlwifi 0000:04:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP May 27 09:16:12 myhostname kernel: [11362.580516] iwlwifi 0000:04:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP May 27 09:16:12 myhostname kernel: [11362.583508] wlan0: associate with 00:18:f8:54:a3:d6 (try 1/3) May 27 09:16:12 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: authenticating -> associating May 27 09:16:12 myhostname wpa_supplicant[8946]: wlan0: Associated with 00:18:f8:54:a3:d6 May 27 09:16:12 myhostname kernel: [11362.585908] wlan0: RX AssocResp from 00:18:f8:54:a3:d6 (capab=0x411 status=0 aid=9) May 27 09:16:12 myhostname kernel: [11362.586781] wlan0: associated May 27 09:16:12 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: associating -> associated May 27 09:16:13 myhostname kernel: [11362.947693] wlan0: deauthenticated from 00:18:f8:54:a3:d6 (Reason: 15) May 27 09:16:13 myhostname wpa_supplicant[8946]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:18:f8:54:a3:d6 reason=15 May 27 09:16:13 myhostname kernel: [11362.973461] cfg80211: Calling CRDA to update world regulatory domain May 27 09:16:13 myhostname kernel: [11362.975673] cfg80211: World regulatory domain updated: May 27 09:16:13 myhostname kernel: [11362.975675] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) May 27 09:16:13 myhostname kernel: [11362.975676] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm) May 27 09:16:13 myhostname kernel: [11362.975677] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm) May 27 09:16:13 myhostname kernel: [11362.975678] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm) May 27 09:16:13 myhostname kernel: [11362.975678] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm) May 27 09:16:13 myhostname kernel: [11362.975679] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm) May 27 09:16:13 myhostname kernel: [11362.975679] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm) May 27 09:16:13 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: associated -> disconnected May 27 09:16:13 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: disconnected -> scanning May 27 09:16:14 myhostname NetworkManager[13992]: <warn> Activation (wlan0/wireless): association took too long. May 27 09:16:14 myhostname NetworkManager[13992]: <info> (wlan0): device state change: config -> failed (reason 'no-secrets') [50 120 7] May 27 09:16:14 myhostname NetworkManager[13992]: <info> Marking connection 'Auto myaccesspoint' invalid. May 27 09:16:14 myhostname NetworkManager[13992]: <warn> Activation (wlan0) failed for connection 'Auto myaccesspoint' May 27 09:16:14 myhostname NetworkManager[13992]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0] May 27 09:16:14 myhostname NetworkManager[13992]: <info> (wlan0): deactivating device (reason 'none') [0] May 27 09:16:14 myhostname NetworkManager[13992]: <info> (wlan0): supplicant interface state: scanning -> disconnected The things that jump out at me are "deauthenticating ... by local choice( reason=3)" and the lines that contain "(reason=15)". I've tried various fixes: iwconfig wlan0 power off killing wpa_supplicant connecting with iwconfig + dhclient instead of gnome's network -manager explicitly configuring wlan0 in /etc/network/interfaces creating a /etc/wpa_supplicant.conf file ...but nothing seems to work. I'm not sure what I did wrong, or what step I've skipped in trying to get wlan0 back as a non-bridged device -- I removed it from the bridge and then deleted the bridge itself. Any ideas?

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• Is it possible to run dhcpd3 as non-root user in a chroot jail?

  - by Lenain

  Hi everyone. I would like to run dhcpd3 from a chroot jail on Debian Lenny. At the moment, I can run it as root from my jail. Now I want to do this as non-root user (as "-u blah -t /path/to/jail" Bind option). If I start my process like this : start-stop-daemon --chroot /home/jails/dhcp --chuid dhcp \ --start --pidfile /home/jails/dhcp/var/run/dhcp.pid --exec /usr/sbin/dhcpd3 I get stuck with these errors : Internet Systems Consortium DHCP Server V3.1.1 Copyright 2004-2008 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ unable to create icmp socket: Operation not permitted Wrote 0 deleted host decls to leases file. Wrote 0 new dynamic host decls to leases file. Wrote 0 leases to leases file. Open a socket for LPF: Operation not permitted strace : brk(0) = 0x911b000 fcntl64(0, F_GETFD) = 0 fcntl64(1, F_GETFD) = 0 fcntl64(2, F_GETFD) = 0 access("/etc/suid-debug", F_OK) = -1 ENOENT (No such file or directory) access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb775d000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/cmov/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/i686/cmov", 0xbfc2ac84) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/i686", 0xbfc2ac84) = -1 ENOENT (No such file or directory) open("/lib/tls/cmov/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/cmov", 0xbfc2ac84) = -1 ENOENT (No such file or directory) open("/lib/tls/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls", 0xbfc2ac84) = -1 ENOENT (No such file or directory) open("/lib/i686/cmov/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i686/cmov", 0xbfc2ac84) = -1 ENOENT (No such file or directory) open("/lib/i686/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i686", 0xbfc2ac84) = -1 ENOENT (No such file or directory) open("/lib/cmov/libc.so.6", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/cmov", 0xbfc2ac84) = -1 ENOENT (No such file or directory) open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\260e\1\0004\0\0\0t"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1294572, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb775c000 mmap2(NULL, 1300080, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb761e000 mmap2(0xb7756000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x138) = 0xb7756000 mmap2(0xb7759000, 9840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7759000 close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb761d000 set_thread_area({entry_number:-1 - 6, base_addr:0xb761d6b0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 mprotect(0xb7756000, 4096, PROT_READ) = 0 open("/dev/null", O_RDWR) = 3 close(3) = 0 brk(0) = 0x911b000 brk(0x913c000) = 0x913c000 socket(PF_FILE, SOCK_DGRAM, 0) = 3 fcntl64(3, F_SETFD, FD_CLOEXEC) = 0 connect(3, {sa_family=AF_FILE, path="/dev/log"...}, 110) = 0 time(NULL) = 1284760816 open("/etc/localtime", O_RDONLY) = 4 fstat64(4, {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 fstat64(4, {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb761c000 read(4, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\f\0\0\0\f\0\0\0\0\0"..., 4096) = 2945 _llseek(4, -28, [2917], SEEK_CUR) = 0 read(4, "\nCET-1CEST,M3.5.0,M10.5.0/3\n"..., 4096) = 28 close(4) = 0 munmap(0xb761c000, 4096) = 0 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: Intern"..., 73, MSG_NOSIGNAL) = 73 write(2, "Internet Systems Consortium DHCP "..., 46Internet Systems Consortium DHCP Server V3.1.1) = 46 write(2, "\n"..., 1 ) = 1 time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: Copyri"..., 75, MSG_NOSIGNAL) = 75 write(2, "Copyright 2004-2008 Internet Syst"..., 48Copyright 2004-2008 Internet Systems Consortium.) = 48 write(2, "\n"..., 1 ) = 1 time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: All ri"..., 47, MSG_NOSIGNAL) = 47 write(2, "All rights reserved."..., 20All rights reserved.) = 20 write(2, "\n"..., 1 ) = 1 time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: For in"..., 77, MSG_NOSIGNAL) = 77 write(2, "For info, please visit http://www"..., 50For info, please visit http://www.isc.org/sw/dhcp/) = 50 write(2, "\n"..., 1 ) = 1 socket(PF_FILE, SOCK_STREAM, 0) = 4 fcntl64(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(4) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 4 fcntl64(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(4) = 0 open("/etc/nsswitch.conf", O_RDONLY) = 4 fstat64(4, {st_mode=S_IFREG|0644, st_size=475, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb761c000 read(4, "# /etc/nsswitch.conf\n#\n# Example "..., 4096) = 475 read(4, ""..., 4096) = 0 close(4) = 0 munmap(0xb761c000, 4096) = 0 open("/lib/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/i686/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/i686/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/i686/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/i686", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/i686/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i686/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/i686/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i686", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/lib/i486-linux-gnu/tls/i686/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i486-linux-gnu/tls/i686/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/lib/i486-linux-gnu/tls/i686/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i486-linux-gnu/tls/i686", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/lib/i486-linux-gnu/tls/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i486-linux-gnu/tls/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/lib/i486-linux-gnu/tls/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i486-linux-gnu/tls", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/lib/i486-linux-gnu/i686/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i486-linux-gnu/i686/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/lib/i486-linux-gnu/i686/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i486-linux-gnu/i686", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/lib/i486-linux-gnu/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i486-linux-gnu/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/lib/i486-linux-gnu/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i486-linux-gnu", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/i486-linux-gnu/tls/i686/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i486-linux-gnu/tls/i686/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/i486-linux-gnu/tls/i686/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i486-linux-gnu/tls/i686", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/i486-linux-gnu/tls/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i486-linux-gnu/tls/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/i486-linux-gnu/tls/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i486-linux-gnu/tls", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/i486-linux-gnu/i686/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i486-linux-gnu/i686/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/i486-linux-gnu/i686/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i486-linux-gnu/i686", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/i486-linux-gnu/cmov/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i486-linux-gnu/cmov", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/usr/lib/i486-linux-gnu/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i486-linux-gnu", 0xbfc2ad5c) = -1 ENOENT (No such file or directory) open("/lib/libnss_files.so.2", O_RDONLY) = 4 read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\320\30\0\0004\0\0\0\250"..., 512) = 512 fstat64(4, {st_mode=S_IFREG|0644, st_size=38408, ...}) = 0 mmap2(NULL, 41624, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0xb7612000 mmap2(0xb761b000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x8) = 0xb761b000 close(4) = 0 open("/etc/services", O_RDONLY|O_CLOEXEC) = 4 fcntl64(4, F_GETFD) = 0x1 (flags FD_CLOEXEC) fstat64(4, {st_mode=S_IFREG|0644, st_size=18480, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7611000 read(4, "# Network services, Internet styl"..., 4096) = 4096 read(4, "9/tcp\t\t\t\t# Quick Mail Transfer Pr"..., 4096) = 4096 read(4, "note\t1352/tcp\tlotusnotes\t# Lotus "..., 4096) = 4096 read(4, "tion\nafs3-kaserver\t7004/udp\nafs3-"..., 4096) = 4096 read(4, "backup\t2989/tcp\t\t\t# Afmbackup sys"..., 4096) = 2096 read(4, ""..., 4096) = 0 close(4) = 0 munmap(0xb7611000, 4096) = 0 time(NULL) = 1284760816 open("/etc/protocols", O_RDONLY|O_CLOEXEC) = 4 fstat64(4, {st_mode=S_IFREG|0644, st_size=2626, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7611000 read(4, "# Internet (IP) protocols\n#\n# Upd"..., 4096) = 2626 close(4) = 0 munmap(0xb7611000, 4096) = 0 socket(PF_INET, SOCK_RAW, IPPROTO_ICMP) = -1 EPERM (Operation not permitted) time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: unable"..., 80, MSG_NOSIGNAL) = 80 write(2, "unable to create icmp socket: Ope"..., 53unable to create icmp socket: Operation not permitted) = 53 write(2, "\n"..., 1 ) = 1 open("/etc/dhcp3/dhcpd.conf", O_RDONLY) = 4 lseek(4, 0, SEEK_END) = 1426 lseek(4, 0, SEEK_SET) = 0 read(4, "#----------------------------\n# G"..., 1426) = 1426 close(4) = 0 mmap2(NULL, 401408, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb75b0000 mmap2(NULL, 401408, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb754e000 mmap2(NULL, 401408, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb74ec000 brk(0x916f000) = 0x916f000 close(3) = 0 socket(PF_FILE, SOCK_DGRAM, 0) = 3 fcntl64(3, F_SETFD, FD_CLOEXEC) = 0 connect(3, {sa_family=AF_FILE, path="/dev/log"...}, 110) = 0 time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: Inter"..., 74, MSG_NOSIGNAL) = 74 time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: Copyr"..., 76, MSG_NOSIGNAL) = 76 time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: All r"..., 48, MSG_NOSIGNAL) = 48 time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: For i"..., 78, MSG_NOSIGNAL) = 78 open("/var/lib/dhcp3/dhcpd.leases", O_RDONLY) = 4 lseek(4, 0, SEEK_END) = 126 lseek(4, 0, SEEK_SET) = 0 read(4, "# The format of this file is docu"..., 126) = 126 close(4) = 0 open("/var/lib/dhcp3/dhcpd.leases", O_WRONLY|O_CREAT|O_APPEND, 0666) = 4 fstat64(4, {st_mode=S_IFREG|0644, st_size=126, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb74eb000 fstat64(4, {st_mode=S_IFREG|0644, st_size=126, ...}) = 0 _llseek(4, 126, [126], SEEK_SET) = 0 time(NULL) = 1284760816 time(NULL) = 1284760816 open("/var/lib/dhcp3/dhcpd.leases.1284760816", O_WRONLY|O_CREAT|O_TRUNC, 0664) = 5 fcntl64(5, F_GETFL) = 0x1 (flags O_WRONLY) fstat64(5, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb74ea000 _llseek(5, 0, [0], SEEK_CUR) = 0 close(4) = 0 munmap(0xb74eb000, 4096) = 0 time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: Wrote"..., 70, MSG_NOSIGNAL) = 70 write(2, "Wrote 0 deleted host decls to lea"..., 42Wrote 0 deleted host decls to leases file.) = 42 write(2, "\n"..., 1 ) = 1 time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: Wrote"..., 74, MSG_NOSIGNAL) = 74 write(2, "Wrote 0 new dynamic host decls to"..., 46Wrote 0 new dynamic host decls to leases file.) = 46 write(2, "\n"..., 1 ) = 1 time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: Wrote"..., 58, MSG_NOSIGNAL) = 58 write(2, "Wrote 0 leases to leases file."..., 30Wrote 0 leases to leases file.) = 30 write(2, "\n"..., 1 ) = 1 write(5, "# The format of this file is docu"..., 126) = 126 fsync(5) = 0 unlink("/var/lib/dhcp3/dhcpd.leases~") = 0 link("/var/lib/dhcp3/dhcpd.leases", "/var/lib/dhcp3/dhcpd.leases~") = 0 rename("/var/lib/dhcp3/dhcpd.leases.1284760816", "/var/lib/dhcp3/dhcpd.leases") = 0 socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 4 ioctl(4, SIOCGIFCONF, {0 - 64, NULL}) = 0 ioctl(4, SIOCGIFCONF, {64, {{"lo", {AF_INET, inet_addr("127.0.0.1")}}, {"eth0", {AF_INET, inet_addr("192.168.0.10")}}}}) = 0 ioctl(4, SIOCGIFFLAGS, {ifr_name="lo", ifr_flags=IFF_UP|IFF_LOOPBACK|IFF_RUNNING}) = 0 ioctl(4, SIOCGIFFLAGS, {ifr_name="eth0", ifr_flags=IFF_UP|IFF_BROADCAST|IFF_RUNNING|IFF_MULTICAST}) = 0 ioctl(4, SIOCGIFHWADDR, {ifr_name="eth0", ifr_hwaddr=00:c0:26:87:55:c0}) = 0 socket(PF_PACKET, SOCK_PACKET, 768) = -1 EPERM (Operation not permitted) time(NULL) = 1284760816 stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=2945, ...}) = 0 send(3, "Sep 18 00:00:16 dhcpd: Open "..., 74, MSG_NOSIGNAL) = 74 write(2, "Open a socket for LPF: Operation "..., 46Open a socket for LPF: Operation not permitted) = 46 write(2, "\n"..., 1 ) = 1 exit_group(1) = ? I understand that dhcpd wants to create sockets on port 67... but I don't know how to authorize that through the chroot. Any idea?

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• Too many sleeping processes?

  - by user55859

  I'm running Debian Lenny (x86_64) on a cloud VPS (Xen) and top command tells me there are 210 processes running and 209 are sleeping: top - 14:49:29 up 15:18, 1 user, load average: 0.09, 0.11, 0.05 Tasks: 210 total, 1 running, 209 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 532288k total, 437316k used, 94972k free, 30584k buffers Swap: 1048568k total, 408k used, 1048160k free, 219772k cached And here is what ps aux command gives me: USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1 0.0 0.1 10380 812 ? Ss Sep30 0:00 init [2] root 2 0.0 0.0 0 0 ? S< Sep30 0:00 [kthreadd] root 3 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/0] root 4 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/0] root 5 0.0 0.0 0 0 ? S< Sep30 0:00 [events/0] root 6 0.0 0.0 0 0 ? S< Sep30 0:00 [khelper] root 7 0.0 0.0 0 0 ? S< Sep30 0:05 [xenwatch] root 8 0.0 0.0 0 0 ? S< Sep30 0:13 [xenbus] root 10 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/1] root 11 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/1] root 12 0.0 0.0 0 0 ? S< Sep30 0:00 [events/1] root 13 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/2] root 14 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/2] root 15 0.0 0.0 0 0 ? S< Sep30 0:00 [events/2] root 16 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/3] root 17 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/3] root 18 0.0 0.0 0 0 ? S< Sep30 0:00 [events/3] root 19 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/4] root 20 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/4] root 21 0.0 0.0 0 0 ? S< Sep30 0:00 [events/4] root 22 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/5] root 23 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/5] root 24 0.0 0.0 0 0 ? S< Sep30 0:00 [events/5] root 25 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/6] root 26 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/6] root 27 0.0 0.0 0 0 ? S< Sep30 0:00 [events/6] root 28 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/7] root 29 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/7] root 30 0.0 0.0 0 0 ? S< Sep30 0:00 [events/7] root 31 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/8] root 32 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/8] root 33 0.0 0.0 0 0 ? S< Sep30 0:00 [events/8] root 34 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/9] root 35 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/9] root 36 0.0 0.0 0 0 ? S< Sep30 0:00 [events/9] root 37 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/10] root 38 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/10] root 39 0.0 0.0 0 0 ? S< Sep30 0:04 [events/10] root 40 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/11] root 41 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/11] root 42 0.0 0.0 0 0 ? S< Sep30 0:00 [events/11] root 43 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/12] root 44 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/12] root 45 0.0 0.0 0 0 ? S< Sep30 0:00 [events/12] root 46 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/13] root 47 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/13] root 48 0.0 0.0 0 0 ? S< Sep30 0:00 [events/13] root 49 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/14] root 50 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/14] root 51 0.0 0.0 0 0 ? S< Sep30 0:00 [events/14] root 52 0.0 0.0 0 0 ? S< Sep30 0:00 [migration/15] root 53 0.0 0.0 0 0 ? S< Sep30 0:00 [ksoftirqd/15] root 54 0.0 0.0 0 0 ? S< Sep30 0:00 [events/15] root 55 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/0] root 56 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/1] root 57 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/2] root 58 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/3] root 59 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/4] root 60 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/5] root 61 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/6] root 62 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/7] root 63 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/8] root 64 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/9] root 65 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/10] root 66 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/11] root 67 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/12] root 68 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/13] root 69 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/14] root 70 0.0 0.0 0 0 ? S< Sep30 0:00 [kintegrityd/15] root 71 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/0] root 72 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/1] root 73 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/2] root 74 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/3] root 75 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/4] root 76 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/5] root 77 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/6] root 78 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/7] root 79 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/8] root 80 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/9] root 81 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/10] root 82 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/11] root 83 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/12] root 84 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/13] root 85 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/14] root 86 0.0 0.0 0 0 ? S< Sep30 0:00 [kblockd/15] root 87 0.0 0.0 0 0 ? S< Sep30 0:00 [cqueue] root 88 0.0 0.0 0 0 ? S< Sep30 0:00 [kseriod] root 89 0.0 0.0 0 0 ? S Sep30 0:00 [pdflush] root 90 0.0 0.0 0 0 ? S Sep30 0:00 [pdflush] root 91 0.0 0.0 0 0 ? S< Sep30 0:00 [kswapd0] root 92 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/0] root 93 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/1] root 94 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/2] root 95 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/3] root 96 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/4] root 97 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/5] root 98 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/6] root 99 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/7] root 100 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/8] root 101 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/9] root 102 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/10] root 103 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/11] root 104 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/12] root 105 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/13] root 106 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/14] root 107 0.0 0.0 0 0 ? S< Sep30 0:00 [aio/15] root 108 0.0 0.0 0 0 ? S< Sep30 0:00 [kpsmoused] root 167 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/0] root 168 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/1] root 169 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/2] root 170 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/3] root 171 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/4] root 172 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/5] root 173 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/6] root 174 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/7] root 175 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/8] root 176 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/9] root 177 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/10] root 178 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/11] root 179 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/12] root 180 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/13] root 181 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/14] root 182 0.0 0.0 0 0 ? S< Sep30 0:00 [net_accel/15] root 315 0.0 0.0 0 0 ? S< Sep30 0:00 [xfs_mru_cache] root 316 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/0] root 317 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/1] root 318 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/2] root 319 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/3] root 320 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/4] root 321 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/5] root 322 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/6] root 323 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/7] root 324 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/8] root 325 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/9] root 326 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/10] root 327 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/11] root 328 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/12] root 329 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/13] root 330 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/14] root 331 0.0 0.0 0 0 ? S< Sep30 0:00 [xfslogd/15] root 332 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/0] root 333 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/1] root 334 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/2] root 335 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/3] root 336 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/4] root 337 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/5] root 338 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/6] root 339 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/7] root 340 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/8] root 341 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/9] root 342 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/10] root 343 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/11] root 344 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/12] root 345 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/13] root 346 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/14] root 347 0.0 0.0 0 0 ? S< Sep30 0:00 [xfsdatad/15] root 399 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsIO] root 400 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 401 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 402 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 403 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 404 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 405 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 406 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 407 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 408 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 409 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 410 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 411 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 412 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 413 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 414 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 415 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsCommit] root 416 0.0 0.0 0 0 ? S< Sep30 0:00 [jfsSync] root 673 0.0 0.0 0 0 ? S< Sep30 0:00 [kjournald] root 727 0.0 0.1 16840 960 ? S<s Sep30 0:00 udevd --daemon root 1273 0.0 0.3 122036 2016 ? Sl Sep30 0:00 /usr/sbin/rsyslogd -c3 root 1306 0.0 0.2 48960 1224 ? Ss Sep30 0:00 /usr/sbin/sshd root 1809 0.0 0.2 21276 1076 ? Ss Sep30 0:00 /usr/sbin/cron root 1873 0.0 1.5 41460 8360 ? Ss Sep30 0:02 /usr/sbin/munin-node root 1896 0.0 0.1 3864 608 tty1 Ss+ Sep30 0:00 /sbin/getty 38400 tty1 root 1897 0.0 0.1 3864 604 tty2 Ss+ Sep30 0:00 /sbin/getty 38400 tty2 root 1898 0.0 0.1 3864 604 tty3 Ss+ Sep30 0:00 /sbin/getty 38400 tty3 root 1899 0.0 0.1 3864 608 tty4 Ss+ Sep30 0:00 /sbin/getty 38400 tty4 root 1900 0.0 0.1 3864 608 tty5 Ss+ Sep30 0:00 /sbin/getty 38400 tty5 root 1901 0.0 0.1 3864 604 tty6 Ss+ Sep30 0:00 /sbin/getty 38400 tty6 101 4526 0.0 0.1 42820 1052 ? Ss 12:27 0:00 /usr/sbin/exim4 -bd -q30m root 8865 0.0 0.2 11668 1432 pts/0 S 13:18 0:00 /bin/sh /usr/bin/mysqld_safe mysql 8980 0.0 9.0 175284 48368 pts/0 Sl 13:18 0:05 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-file=/var/run/my root 8981 0.0 0.1 6480 684 pts/0 S 13:18 0:00 logger -t mysqld -p daemon.error root 13730 0.0 0.8 149144 4712 ? Ss 14:05 0:00 /usr/bin/php5-fpm --fpm-config /etc/php5/fpm/php5-fpm.conf www-data 13731 0.2 11.4 172756 61136 ? S 14:05 0:05 /usr/bin/php5-fpm --fpm-config /etc/php5/fpm/php5-fpm.conf www-data 13732 0.2 8.9 158516 47712 ? S 14:05 0:05 /usr/bin/php5-fpm --fpm-config /etc/php5/fpm/php5-fpm.conf www-data 13733 0.1 8.1 156576 43468 ? S 14:05 0:04 /usr/bin/php5-fpm --fpm-config /etc/php5/fpm/php5-fpm.conf root 14601 0.0 0.2 30600 1240 ? Ss 14:15 0:00 nginx: master process /usr/sbin/nginx www-data 14602 0.0 0.3 30976 1836 ? S 14:15 0:00 nginx: worker process www-data 14603 0.0 0.3 30976 1836 ? S 14:15 0:00 nginx: worker process www-data 14604 0.0 0.5 31552 2852 ? S 14:15 0:00 nginx: worker process www-data 14605 0.0 0.4 31240 2580 ? S 14:15 0:00 nginx: worker process www-data 14606 0.0 0.3 30976 1836 ? S 14:15 0:00 nginx: worker process www-data 14607 0.0 0.3 30976 1836 ? S 14:15 0:00 nginx: worker process www-data 14608 0.0 0.4 31244 2536 ? S 14:15 0:00 nginx: worker process www-data 14609 0.0 0.5 31544 2788 ? S 14:15 0:00 nginx: worker process root 17169 0.0 0.2 17456 1160 pts/0 R+ 14:45 0:00 ps aux root 26391 0.0 0.6 66168 3284 ? Ss 10:32 0:00 sshd: root@notty root 26394 0.0 0.3 42376 2120 ? Ss 10:32 0:00 /usr/lib/openssh/sftp-server root 31500 0.0 0.6 66140 3248 ? Ss 11:33 0:00 sshd: root@pts/0 root 31503 0.0 0.3 20248 1924 pts/0 Ss 11:33 0:00 -bash root 31509 0.0 0.6 66168 3264 ? Ss 11:34 0:00 sshd: root@notty root 31512 0.0 0.3 42180 1984 ? Ss 11:34 0:00 /usr/lib/openssh/sftp-server I'm wondering if this is normal situation? Do I need all of those process? Thanks for any suggestions!

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• Saslauth with ldapdb on debian

  - by Andreas Rehm

  I'm trying to get saslauthd working with openldap. ldapsearch and every service connected to openldap works fine. sasldblistusers2 doesn't work - and ldapwhoami does not work either. sasldblistusers2 produces this log entry: Sep 30 03:48:01 sogo sasldblistusers2: _sasl_plugin_load failed on sasl_auxprop_plug_init for plugin: ldapdb Sep 30 03:48:01 sogo sasldblistusers2: canonuserfunc error -7 Sep 30 03:48:01 sogo sasldblistusers2: _sasl_plugin_load failed on sasl_canonuser_init for plugin: ldapdb Sep 30 03:48:01 sogo sasldblistusers2: DIGEST-MD5 common mech free ldapwhoami result: root@sogo:/root# ldapwhoami SASL/DIGEST-MD5 authentication started Please enter your password: ldap_sasl_interactive_bind_s: Invalid credentials (49) additional info: SASL(-13): user not found: no secret in database My /etc/saslauthd.conf: ldap_servers: ldap://localhost ldap_version: 3 ldap_auth_method: bind ldap_search_base: dc=MY,dc=DOMAIN ldap_scope: sub ldap_bind_dn: cn=admin,dc=MY,dc=DOMAIN ldap_bind_pw: LDAPPASS ldap_filter: <uid=%u> auxprop_plugin: ldapdb /etc/default/saslauthd: START=yes DESC="SASL Authentication Daemon" NAME="saslauthd" MECHANISMS="ldap" MECH_OPTIONS="" THREADS=5 OPTIONS="-c -m /var/run/saslauthd" I can't see the error. Please help.

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• on debian, lighttpd apache2 using 80 port, lighttpd throws :address already use error

  - by user1960581

  I bought the linode(linode.com) server the other day. I've been trying to run lighttpd and apache2 at the same port, using lighttpd for static files. As linode is only providing ONE ipv4 address, I tried to bind lighttpd on the ipv6 address. That's where I got the same error each and very single time: can't bind to port [ipv6] 80 Address already in use. I tried bind the ipv4 address. Everything worked. Please help me, this is driving me nuts for the last two days. my lighttpd.conf file:(the ipv6 address isn't true) server.modules = ( "mod_access", "mod_alias", "mod_compress", "mod_redirect", # "mod_rewrite", ) server.document-root = "/var/www" server.upload-dirs = ( "/var/cache/lighttpd/uploads" ) server.errorlog = "/var/log/lighttpd/error.log" server.pid-file = "/var/run/lighttpd.pid" server.username = "www-data" server.groupname = "www-data" server.port = 80 server.bind = "2600:3c02::0000" server.use-ipv6 = "enable" #server.pid-file = "/var/run/lighttpd.pid" index-file.names = ( "index.php", "index.html", "index.lighttpd.html" ) url.access-deny = ( "~", ".inc" ) static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" ) compress.cache-dir = "/var/cache/lighttpd/compress/" compress.filetype = ( "application/javascript", "text/css", "text/html", "text/plain" ) # default listening port for IPv6 falls back to the IPv4 port #include_shell "/usr/share/lighttpd/use-ipv6.pl " + server.port include_shell "/usr/share/lighttpd/create-mime.assign.pl" include_shell "/usr/share/lighttpd/include-conf-enabled.pl" ### ipv6 ### $SERVER["socket"] == "[2600:3c02::0000]:80" { # accesslog.filename = "var/log/lighttpd/ipv6/access.log" # server.document-root = "/var/www/" # server.error-handler-404 = "/index.php?error=404" } and the error message: can't bind to port, 2600:3c02::0000 Address already in use.

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• Virtual host “Forbidden You don't have permission to access / on this server” on debian

  - by ulduz114

  Before I created a virtual host I could see "http://localhost", but when I created a virtual host I could not see "http://localhost" and my virtual host "http://test" Here is my virtualhost config file: <VirtualHost test:80> ServerAdmin [email protected] ServerName test ServerAlias test DocumentRoot "/home/javad/Public/test/public" <Directory "/home/javad/Public/test/public/" > Options Indexes FollowSymLinks MultiViews ExecCGI DirectoryIndex index.php AllowOverride all Order allow,deny allow from all </Directory> </VirtualHost> so I ran a2ensite test and added 127.0.0.1 test to /etc/hosts file and restart apapche2 fine But after that I cannot access to http://test or even http://localhost i get Forbidden You don't have permission to access / on this server. When I delete my virtual host setting I can access http://localhost

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• How to recover basic networking utilities on Debian?

  - by Rizo

  I am administrating a small server for LAN, providing basic services such as web-proxy, ldap, kerberos, afs, etc. Yesterday there was a power cut so server halted. When I restarted it no network interfaces were available and configured. I tried restarting networking daemon but it just exited with 0 status. So I tried to run one of the interfaces manually, but ifup and ifdown commands simply are not there. No only in PATH, but they disappeared from /sbin. So my question is: how can I recover these network utilities?

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• Restoring the owners on debian system files

  - by Vlad

  Due to my inattention, tiredness (and probably stupidity) i've run chown -R someuser:someuser / and now all your base are belongs to us the files on the server belong to one user (lol). After system restart apache, bind9, mysql, and a dozen of other applications don't start and fill their log files with permission errors. I haven't done any backups on system files, only on the db and website files... Please suggest some ways to revive my web server. I have only 2 month experience with linux, so please keep it simple...

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• How does NFS read cache work on Debian?

  - by Ztyx

  I am planning to use NFS to serve out many small files. They will be read very often so client side caching is crucial. Does NFS handle this? Is there a way to increase the client side caching in some way? ...or should I look at another solution? Syncing using rsync or unison periodically is not an option since the files are modified on the client side from time to time.

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