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• DNS and DHCP dies after ~2 days of use on ClearOS

  - by TheLQ

  I'm using ClearOS (based on CentOS, so any info specific to it should apply here) as a gateway, DHCP, and DNS server. I had this server running perfectly for a month or two before replacing it with another server. However due DNS and DHCP failing 2 days in and a host of other performance issues (the box was a little underpowered), I changed back to the origional server. However 2 days in DHCP and DNS are failing again, and I'm out of idea's on why. In both cases to my knowledge no network or server changes occurred after installation. Right after installing (and at least a day in) DNS and DHCP was working just fine. However later (Day 2) I get a call saying their internet is down (translation: Nobody can get to websites because DNS is down) I've tried to fix the problem by checking if the dnsmasq is even running (it is), restarting the service, and restarting the server to no effect. I do have two internal servers that have static DHCP leases but one's lease must of expired as I can't connect to it anymore. I'm hesitant to do any dhcp testing on the last server as I'll not be able to connect to it anymore. Is there anything anyone can think of on why DNS and DHCP would fail 2 days in to running perfectly? More info: Running dnsmasq in debug mode. This is all that's displayed even when running nslookup quackwall. I'm not sure though if nslookup commands should show up in the log [root@quackwall ~]# /usr/sbin/dnsmasq -dq dnsmasq: started, version 2.49 cachesize 150 dnsmasq: compile time options: IPv6 GNU-getopt no-DBus no-I18N DHCP TFTP dnsmasq-dhcp: DHCP, IP range 10.0.0.100 -- 10.0.0.254, lease time 12h dnsmasq: reading /etc/resolv.conf dnsmasq: using nameserver 74.128.17.114#53 dnsmasq: using nameserver 74.128.19.102#53 dnsmasq: read /etc/hosts - 5 addresses dnsmasq-dhcp: read /etc/ethers - 2 addresses On the other server DNS and the Gateway are all configured correctly (10.0.0.2 is quackwall) lordquackstar@quackgame:~$ netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 10.0.0.0 0.0.0.0 255.255.240.0 U 0 0 0 eth0 0.0.0.0 10.0.0.2 0.0.0.0 UG 0 0 0 eth0 lordquackstar@quackgame:~$ cat /etc/resolv.conf nameserver 10.0.0.2 domain highwow.lan search highwow.lan

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• CentOS 5.7 keeps rebooting after fresh installation

  - by Wagner Maestrelli

  I have just installed CentOS 5.7 x86_64 on a new computer. The installation went on without any issues. But, after it finnished, the machine started to show an awkward behaviour: it restarts every time it tries to boot. It happens after all the services have been started. The screen just goes black and it shows an error message from the monitor: Input not supported. And then it reboots. I took a look at the logs, but I couldn't manage to find anything. Any help? Update Before doing the hardware diagnosis, as pointed out, I decided to make some tests. First, I changed the runlevel to 3, adding the 3 parameter at the end of the kernel command. Then, after logging in in text mode, I checked the xorg.conf file out for some problems regarding the screen resolution. There was nothing unexpected set. Well, if there had to be a problem with it, I couldn't start the X server at the command line, right? So, I typed startx and Gnome started! So, probably, it's not an issue with the screen resolution, I suppose. Then I selected the Log Out root... Gnome menu option and something odd happened: the screen went black, the Input not supported monitor error message was displayed and the system rebooted. Yes, the same problem I was having while trying to boot! After that, I decided to try yet another test: I removed the rhgb quiet parameters from the kernel command to see if some error would show up. Well, to my surprise, the boot went on without problems! The Gnome login screen showed up, I logged in and the session started. But then I selected the Shut Down... menu option and guess what? Same problem: black screen, same monitor error and the system rebooted. Yes, it rebooted, it did not shut down. I repeated both of the tests and the behaviours were the same. I really don't know what's going on. It seems to be an issue regarding the changing of the screen mode or something like that. Any ideas? Could this be a hardware problem? Or does it seem to be something regarding the system configuration?

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• Deploying Django App with Nginx, Apache, mod_wsgi

  - by JCWong

  I have a django app which can run locally using the standard development environment. I want to now move this to EC2 for production. The django documentation suggests running with apache and mod_wsgi, and using nginx for loading static files. I am running Ubuntu 12.04 on an Ec2 box. My Django app, "ddt", contains a subdirectory "apache" with ddt.wsgi import os, sys apache_configuration= os.path.dirname(__file__) project = os.path.dirname(apache_configuration) workspace = os.path.dirname(project) sys.path.append(workspace) sys.path.append('/usr/lib/python2.7/site-packages/django/') sys.path.append('/home/jeffrey/www/ddt/') os.environ['DJANGO_SETTINGS_MODULE'] = 'ddt.settings' import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler() I have mod_wsgi installed from apt. My apache/httpd.conf contains NameVirtualHost *:8080 WSGIScriptAlias / /home/jeffrey/www/ddt/apache/ddt.wsgi WSGIPythonPath /home/jeffrey/www/ddt <Directory /home/jeffrey/www/ddt/apache/> <Files ddt.wsgi> Order deny,allow Allow from all </Files> </Directory> Under apache2/sites-enabled <VirtualHost *:8080> ServerName www.mysite.com ServerAlias mysite.com <Directory /home/jeffrey/www/ddt/apache/> Order deny,allow Allow from all </Directory> LogLevel warn ErrorLog /home/jeffrey/www/ddt/logs/apache_error.log CustomLog /home/jeffrey/www/ddt/logs/apache_access.log combined WSGIDaemonProcess datadriventrading.com user=www-data group=www-data threads=25 WSGIProcessGroup datadriventrading.com WSGIScriptAlias / /home/jeffrey/www/ddt/apache/ddt.wsgi </VirtualHost> If I am correct, these 3 files above should correctly allow my django app to run on port 8080. I have the following nginx/proxy.conf file proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; client_max_body_size 10m; client_body_buffer_size 128k; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; Under nginx/sites-enabled server { listen 80; server_name www.mysite.com mysite.com; access_log /home/jeffrey/www/ddt/logs/nginx_access.log; error_log /home/jeffrey/www/ddt/logs/nginx_error.log; location / { proxy_pass http://127.0.0.1:8080; include /etc/nginx/proxy.conf; } location /media/ { root /home/jeffrey/www/ddt/; } } If I am correct these two files should setup nginx to take requests on the HTTP port 80, but then direct requests to apache which is running the django app on port 8080. If i go to mysite.com, all I see is Welcome to Nginx! Any advice for how to debug this?

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• NTPD issue - syncs then slowly loses ground

  - by ethrbunny

  RHEL 5 workstation. Has been running smoothly for years. I did a 'pup' recently and followed with a nice, cleansing reboot. Afterwards the system had some startup issues: namely MySQL refused to start. It just went "...." for 5-10 minutes before I did another boot and skipped that step (using 'interactive'). This was the only service that didn't wan't to start normally. So now that the system is booted I've found that it doesn't want to stay in sync with the NTP master and after 48 hours is refusing any SSH other than root. NTPD: this service starts normally and gets a lock on 4 servers. Almost immediately it starts to lose ground and now (after 3 days) is almost 40 hours behind. If I stop/start the service it gets the lock, resets the system clock and starts losing ground again. The 'hwclock' is set properly and maintains its time. Login: when I (re)start the ntp server I am able to login normally. I assume this problem is due to losing sync with LDAP. This appears to be verified by LDAP errors in /var/log/messages. Suggestions on where to look? ADDENDA: Tried deleting the 'drift' file. After a bit it gets recreated with 0.000. from /var/log/messages: Jan 17 06:54:01 aeolus ntpdate[5084]: step time server 129.95.96.10 offset 30.139216 sec Jan 17 06:54:01 aeolus ntpd[5086]: ntpd [email protected] Tue Oct 25 12:54:17 UTC 2011 (1) Jan 17 06:54:01 aeolus ntpd[5087]: precision = 1.000 usec Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface wildcard, 0.0.0.0#123 Disabled Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface wildcard, ::#123 Disabled Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface lo, ::1#123 Enabled Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface eth0, fe80::213:72ff:fe20:4080#123 Enabled Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface lo, 127.0.0.1#123 Enabled Jan 17 06:54:01 aeolus ntpd[5087]: Listening on interface eth0, 10.127.24.81#123 Enabled Jan 17 06:54:01 aeolus ntpd[5087]: kernel time sync status 0040 Jan 17 06:54:02 aeolus ntpd[5087]: frequency initialized 0.000 PPM from /var/lib/ntp/drift Jan 17 06:54:02 aeolus ntpd[5087]: system event 'event_restart' (0x01) status 'sync_alarm, sync_unspec, 1 event, event_unspec' (0xc010) You can see the 30 second offset. This was after about one minute of operation.

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• Blank Page: wordpress on nginx+php-fpm

  - by troutwine

  Good day. While this post discusses a similar setup to mine serving blank pages occasionally after having made a successful installation, I am unable to serve anything but blank pages. My setup: Wordpress 3.0.4 nginx 0.8.54 php-fpm 5.3.5 (fpm-fcgi) Arch Linux Configuration Files php-fpm.conf: [global] pid = run/php-fpm/php-fpm.pid error_log = log/php-fpm.log log_level = notice [www] listen = 127.0.0.1:9000 listen.owner = www listen.group = www listen.mode = 0660 user = www group = www pm = dynamic pm.max_children = 50 pm.start_servers = 20 pm.min_spare_servers = 5 pm.max_spare_servers = 35 pm.max_requests = 500 nginx.conf: user www; worker_processes 1; error_log /var/log/nginx/error.log notice; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; gzip on; include /etc/nginx/sites-enabled/*.conf; } /etc/nginx/sites-enabled/blog_sharonrhodes_us.conf: upstream php { server 127.0.0.1:9000; } server { error_log /var/log/nginx/us/sharonrhodes/blog/error.log notice; access_log /var/log/nginx/us/sharonrhodes/blog/access.log; server_name blog.sharonrhodes.us; root /srv/apps/us/sharonrhodes/blog; index index.php; location = /favicon.ico { log_not_found off; access_log off; } location = /robots.txt { allow all; log_not_found off; access_log off; } location / { # This is cool because no php is touched for static content try_files $uri $uri/ /index.php?q=$uri&$args; } location ~ \.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; #NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini include fastcgi_params; fastcgi_intercept_errors on; fastcgi_pass php; } location ~* \.(js|css|png|jpg|jpeg|gif|ico)$ { expires max; log_not_found off; } }

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• Mysql server fails to start

  - by Nicolas Thery

  Googling since two hours, I require your assistance. I'm on a Debian virtual machine and I cloned it. The only change is the new IP adress it has. Mysql doesn't start any more: Starting MySQL database server: mysqld . . . . . . . . . . . . . . failed! There is no process called mysql. All the mysql log files in /var/log are empty. here is my.cnf file : [client] port = 3306 socket = /var/run/mysqld/mysqld.sock [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] user = mysql pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock port = 3306 basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp language = /usr/share/mysql/english skip-external-locking bind-address = 127.0.0.1 key_buffer = 16M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 8 myisam-recover = BACKUP query_cache_limit = 1M query_cache_size = 16M general_log_file = /var/log/mysql/mysql.log log_bin = /var/log/mysql/mysql-bin.log expire_logs_days = 10 max_binlog_size = 100M [mysqldump] quick quote-names max_allowed_packet = 16M [mysql] [isamchk] key_buffer = 16M [mysqld_safe] syslog Here is the result of ifconfig : eth0 Link encap:Ethernet HWaddr 00:0c:29:12:98:9a inet adr:192.168.1.138 Bcast:192.168.1.255 Masque:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:754 errors:0 dropped:0 overruns:0 frame:0 TX packets:106 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:1000 RX bytes:101177 (98.8 KiB) TX bytes:17719 (17.3 KiB) lo Link encap:Boucle locale inet adr:127.0.0.1 Masque:255.0.0.0 adr inet6: ::1/128 Scope:Hôte UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:0 RX bytes:560 (560.0 B) TX bytes:560 (560.0 B) As requested, here is the result of : sudo -u mysql mysqld, here is the result : root@debian:/home/nicolas/Bureau# sudo -u mysql mysqld 121004 14:26:57 [Note] Plugin 'FEDERATED' is disabled. mysqld: Can't find file: './mysql/plugin.frm' (errno: 13) 121004 14:26:57 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 121004 14:26:57 InnoDB: Initializing buffer pool, size = 8.0M 121004 14:26:57 InnoDB: Completed initialization of buffer pool 121004 14:26:57 InnoDB: Started; log sequence number 0 70822697 121004 14:26:57 [Note] Recovering after a crash using /var/log/mysql/mysql-bin 121004 14:26:57 [Note] Starting crash recovery... 121004 14:26:57 [Note] Crash recovery finished. 121004 14:26:57 [ERROR] mysqld: Can't find file: './mysql/host.frm' (errno: 13) 121004 14:26:57 [ERROR] Fatal error: Can't open and lock privilege tables: Can't find file: './mysql/host.frm' (errno: 13)

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• Can't get Apache 2.2.21 to compile with OpenSSL support

  - by angstwad

  Alright -- having a bad couple days here compiling Apache 2.2.21 on CentOS 5.7 with the following configure commands: ./configure --enable-ssl=shared --with-ssl=/usr/local/openssl I've compiled from source OpenSSL 1.0.0e from source: ./config --prefix=/usr/local --openssldir=/usr/local/openssl shared zlib-dynamic I attempt to start Apache and it returns: httpd: Syntax error on line 54 of /usr/local/apache2/conf/httpd.conf: Cannot load /usr/local/apache2/modules/mod_ssl.so into server: /usr/local/apache2/modules/mod_ssl.so: undefined symbol: SSL_get_servername If I look at how the libraries are linked, this is what I get: [root@web1 modules]# ldd mod_ssl.so libssl.so.6 => /lib64/libssl.so.6 (0x00002aaaaace4000) libcrypto.so.6 => /lib64/libcrypto.so.6 (0x00002aaaaaf30000) libdl.so.2 => /lib64/libdl.so.2 (0x00002aaaab281000) libz.so.1 => /lib64/libz.so.1 (0x00002aaaab486000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00002aaaab69a000) libc.so.6 => /lib64/libc.so.6 (0x00002aaaab8b5000) libgssapi_krb5.so.2 => /usr/lib64/libgssapi_krb5.so.2 (0x00002aaaabc0e000) libkrb5.so.3 => /usr/lib64/libkrb5.so.3 (0x00002aaaabe3c000) libcom_err.so.2 => /lib64/libcom_err.so.2 (0x00002aaaac0d1000) libk5crypto.so.3 => /usr/lib64/libk5crypto.so.3 (0x00002aaaac2d4000) /lib64/ld-linux-x86-64.so.2 (0x0000555555554000) libkrb5support.so.0 => /usr/lib64/libkrb5support.so.0 (0x00002aaaac4f9000) libkeyutils.so.1 => /lib64/libkeyutils.so.1 (0x00002aaaac702000) libresolv.so.2 => /lib64/libresolv.so.2 (0x00002aaaac904000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00002aaaacb19000) libsepol.so.1 => /lib64/libsepol.so.1 (0x00002aaaacd32000) Basically, I've tired compiling from source OpenSSL (both 0.9.8r and 1e), having yum reinstall from the repos, done a make clean and remade both OpenSSL and Apache numerous times -- but I can't get it to compile into the apache base or dynamically as a shared object file. What am I doing wrong here? Update 1: After doing a make clean and make distclean, I've reconfigured with the same parameters as above without any effect. The config.log is at Pastebin. Update 2: Modifying the LD_LIBRARY_PATH had no effect on the lib-deps of mod_ssl.so. UPDATE 3: I've compiled and recompiled many times, and verified with ldconfig that the OpenSSL libs dir is in my path, and included in ld.so.conf. Still cannot get httpd/mod_ssl to load the library at runtime.

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• Suggestions for sharing and using data between Ubuntu and Windows 7 dual boot

  - by wizjany

  Note: TL;DR, scroll to bottom for summary. I recently set up my computer for a dual boot between Ubuntu 9.10 and Windows 7. My current drive setup is as follows. | A1 | A2 | | B1 | B2 | B3 | A1: 100 mb, windows 7 "System Reserved" boot partition A2: 230 gb, data section, this one needs to be shared between the operating systems B1: 125 gb, windows 7 OS B2: 123 gb, ubuntu OS B3: 2gb, linux swap space Pretty much i want to have my documents, music, pictures, videos, etc accessible from both operating systems. My first attempt involved making the data (a2) partition NTFS, and moving my home folder from ubuntu to the data partition. However, as I read NTFS does not work nice with permission, and it messed up my home folder. My next idea is one of the following: 1) format the data partition to ext2/3/4 and move my home folder from linux there, and get a driver to read ext partitions in windows 7. The problem with that is that most of the ext drivers/software are not compatible with windows 7 or do not integrate with windows explorer (I really don't want to open a separate software window just to access my data, plus it's probably not compatible with other software.) http://www.fs-driver.org/ looks promising, but I'm not sure how it works with ext4 and windows 7 (not officially supported, when trying in vista compatibility mode, it tells me I need to format the ext drive to use it). My next idea, 2) keep the home folder in ubuntu where it is, but create symlinks for the Documents, Music, etc folders to an NTFS formatted Data (A2) partition, and add those locations to the windows 7 libraries. I'm not totally sure how the permissions would work out, but it should be fine since it's only the documents, music, etc and not the important config files in the rest of /home/user/. Correct me if I'm wrong. Currently, symlinks is my best idea, although i'm not sure how it will work. Any suggestions, additions to my ideas, links, pointers, whatever would be greatly appreciated. Even if it means i should reformat both my drives and repartition (2 250gb drives if you want to suggest a setup for that), I won't be too opposed if that's the best suggestion (I've gone through the format/install/format/reinstall process 5 times over the past 3 days, once more won't hurt me). TL;DR, summary: I have two hard drives. One is partitioned for Ubuntu and Windows 7, the second one I want accessible to both operating systems to store documents, music, pictures, videos, etc. Suggestions on how to set up the data drive please =) P.S. bonus if I can get an apache server document root folder working between the two OS's as well (permissions could become very complicated, so don't worry too much about that) P.P.S. Related question, but data viewing is one way: http://superuser.com/questions/84586/partition-scheme-and-size-for-dual-boot-windows-7-and-ubuntu-9-10-with-separate-p

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• Intermittently, IIS7 requests get stuck in WindowsAuthenticationModule

  - by rbeier

  Hi, We're running an IIS7 server hosting several dozen websites. Several of these websites are all part of the same legacy app we've developed. These sites all run the same code and run in the same app pool. Roughly once a month over the past few months, we've found that all requests for this app pool start hanging indefinitely. When this happens, we receive an alert and we recycle the app pool. After that, the sites start working again. This only ever affects this one app pool - never any others on the same server. A couple times, before recycling the pool, I've looked at the currently-executing requests in the worker process. They all show up as executing inside the WindowsAuthenticationModule. Which is strange, because the vast majority of the application does not require authentication. There is a small admin section which uses Windows auth... but all the other requests should be anonymous. Does anyone have any idea as to what might be causing this? There are several unusual things about the way these sites are set up. As I mentioned, they all run the same code - multiple sites point at the same physical directory. The only difference is the host header bindings. I'm not sure why there isn't just one site with all the host headers, but that's how it works. In several of these sites, the same physical directory is mapped at two levels - as the root of the site and again as an application within the site. So if a user goes to http://oursite.com/index.aspx, that maps to c:\files\oursite\index.aspx. If a user goes to http://oursite.com/foo/index.aspx, that also maps to c:\files\oursite\index.aspx. I think there is code which looks at the request URL and handles the two requests differently. This is strange because the same web.config ends up being interpreted as a site config file, and also as an application config file within the site. I don't know if this might be related to the authentication problem. If we can't find the cause, we're thinking of a few workarounds we could try: Move the admin section into a separate site, and give the client a new admin URL. Run that separate site in its own app pool. Then in the web.config shared by all the other sites, remove the WindowsAuthenticationModule. That way there should be no possibility of a hang within the WindowsAuthenticationModule. Try running all these sites in the classic pipeline instead of the integrated pipeline. They were working fine on our old IIS6 server... (If we get desperate) Set up a watchdog script which monitors the sites and auto-recycles the app pool when it detects that requests are getting stuck. What do you think? Thanks for your help, Richard

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• Apache Mod_rewrite rule working on one server, but not another

  - by Mason

  I am using mod_jk and mod_rewrite on httpd 2.2.15. I have a rule.... RewriteCond %{REQUEST_URI} !^/video/play\.xhtml.* RewriteRule ^/video/(.*) /video/play.xhtml?vid=$1 [PT] I just want to rewrite something like /video/videoidhere to /video/play.xhtml?vid=videoidhere This works perfectly on my developer machine, but on production I get a 404 (generated by Jboss, not Apache). here is the tail of access.log and rewrite.log on prod (broken). the rewrite.log is exactly the same on dev(working) applying pattern '^/video/(.*)' to uri '/video/46279d4daf5440b2844ec831413dcc3b' RewriteCond: input='/video/46279d4daf5440b2844ec831413dcc3b' pattern='!^/video/play\.xhtml.*' => matched rewrite '/video/46279d4daf5440b2844ec831413dcc3b' -> '/video/play.xhtml?vid=46279d4daf5440b2844ec831413dcc3b' split uri=/video/play.xhtml?vid=46279d4daf5440b2844ec831413dcc3b -> uri=/video/play.xhtml, args=vid=46279d4daf5440b2844ec831413dcc3b forcing '/video/play.xhtml' to get passed through to next API URI-to-filename handler "GET /video/46279d4daf5440b2844ec831413dcc3b HTTP/1.1" 404 420 "-" "Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.6) Gecko/20100628 Ubuntu/10.04 (lucid) Firefox/3.6.6" I can access http://www.fivi.com/video/play.xhtml?vid=46279d4daf5440b2844ec831413dcc3b but not /video/46279d4daf5440b2844ec831413dcc3b Both server are even using the EXACT same httpd.conf, and modules. I built Apache with... ./configure --prefix /usr/local/apache2.2.15 --enable-alias --enable-rewrite --enable-cache --enable-disk_cache --enable-mem_cache --enable-ssl --enable-deflate Thanks, Mason ----UPDATE---- -mod-jk.conf JkWorkersFile /usr/local/apache2.2.15/conf/workers.properties JkLogFile /var/log/mod_jk.log JkLogLevel info JkLogStampFormat "[%a %b %d %H:%M:%S %Y]" JkOptions +ForwardKeySize +ForwardURICompatUnparsed -ForwardDirectories JkRequestLogFormat "%w %V %T" JkShmFile run/jk.shm <Location /jkstatus> JkMount status Order deny,allow Deny from all Allow from 127.0.0.1 </Location> -workers.properties worker.node1.port=8009 worker.node1.host=75.102.10.74 worker.node1.type=ajp13 worker.node1.lbfactor=20 worker.node1.ping_mode=A #As of mod_jk 1.2.27 worker.node2.port=8009 worker.node2.host=75.102.10.75 worker.node2.type=ajp13 worker.node2.lbfactor=10 worker.node2.ping_mode=A #As of mod_jk 1.2.27 worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=node2,node1 worker.loadbalancer.sticky_session=True worker.status.type=status -httpd.conf ServerName www.fivi.com:80 Include /usr/local/apache2.2.15/conf/mod-jk.conf NameVirtualHost * <VirtualHost *> ServerName * DocumentRoot /usr/local/apache2/htdocs JkUnMount /* loadbalancer RedirectMatch 301 /(.*) http://www.fivi.com/$1 </VirtualHost> <VirtualHost *> ServerName www.fivi.com ServerAlias www.fivi.com images.fivi.com JkMount /* loadbalancer JkMount / loadbalancer [root@fivi conf]# /usr/local/apache2.2.15/bin/httpd -M Loaded Modules: core_module (static) authn_file_module (static) authn_default_module (static) authz_host_module (static) authz_groupfile_module (static) authz_user_module (static) authz_default_module (static) auth_basic_module (static) cache_module (static) disk_cache_module (static) mem_cache_module (static) include_module (static) filter_module (static) deflate_module (static) log_config_module (static) env_module (static) headers_module (static) setenvif_module (static) version_module (static) ssl_module (static) mpm_prefork_module (static) http_module (static) mime_module (static) status_module (static) autoindex_module (static) asis_module (static) cgi_module (static) negotiation_module (static) dir_module (static) actions_module (static) userdir_module (static) alias_module (static) rewrite_module (static) so_module (static) jk_module (shared) Syntax OK

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• Changing User/Group to allow PHP to chmod/rename and move_upload_file()

  - by moe

  Hi There, It seems like I cannot do anything with my PHP script on my VPS. It returns 'Permission denied' when I try to upload something to a directory. Yes, I have changed the permission to 777, and it works, but I do not like the insecurity When running the command: ps axu|grep apache|grep -v grep It returns nobody 7689 0.1 3.8 50604 20036 ? S 21:38 0:00 /usr/local/apache/bin/httpd -k start -DSSL root 13600 0.0 3.8 50304 20348 ? Ss Jun06 0:46 /usr/local/apache/bin/httpd -k start -DSSL nobody 15733 0.1 3.8 50700 20156 ? S 21:39 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 15818 0.1 3.8 51492 20180 ? S 21:39 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 23843 0.1 3.7 51336 19592 ? S 21:40 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30335 0.0 3.5 50436 18496 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30406 0.0 3.5 50444 18544 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30407 0.0 3.5 50556 18696 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30472 0.0 3.6 50828 19348 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30474 0.0 3.5 50668 18868 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30476 0.0 3.6 50532 19064 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 30501 0.0 3.8 50556 20080 ? S 21:36 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32341 0.0 3.5 50444 18492 ? S 21:41 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32370 0.0 3.5 50444 18476 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32414 0.1 3.7 51336 19524 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32416 0.1 3.5 50668 18816 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32457 0.1 3.6 50828 19320 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32458 0.1 3.6 50772 19276 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32459 0.0 3.5 50444 18504 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32460 0.2 3.6 50828 19320 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32463 0.0 3.5 50444 18472 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL nobody 32466 0.0 3.4 50436 17960 ? S 21:42 0:00 /usr/local/apache/bin/httpd -k start -DSSL The owner of the directory is 'user [505]' and the group is 'user[508]' (as seen in WinSCP) What can I do to change the Apache Handler to the right owner and group to allow my PHP scripts to work? P.S My PHP is not set to safe mode, and the open_basedir is set to no value

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• Enterprise Tape Backup solutions

  - by Tom O'Connor

  I'm currently attempting to re-architect a backup solution where I'm working. We've got 2 NAS devices, one in the office, one in the datacentre. The servers in the DC back up to the DC NAS, which is then replicated to the Office NAS. The office NAS exports shares as CIFS and NFS, this bit is fine. At some point, I'll have to expand our storage capacity, currently we've got about 1.4TB of storage space, which is about 96% full. Previously, the tape backup was a script that ran tar a few times and squirted data onto a tape. It worked, but was by no means a perfect solution. Restores are a bit of a pest, adding new data to the backup requires editing the script as root. It's just all a bit non-ideal. I've been evaluating a number of "enterprise" ready backup solutions, such as Yosemite Backup from Barracuda, Acronis Backup/Restore, and something from Arkeia. In the process of evaluating these, I've found 2 big problems. Not all of them allow backup of mounted devices (such as a NFS mounted NAS) Many of these applications don't like our tape device. For the most part, (1) is essential. Our NAS has a feeble processor and can't run applications like backup agents. I suspect that the biggest problem is the tape device, which is a HP C7438A DAT72 connected via USB. Questions: Has anyone else got an USB DAT72 device working with similar software? Is there a better way to back up data from an "appliance" NAS device on which you can't run an agent? Would I be totally out of my mind to specify a cheap HP or Dell server with a couple of 1TB hard disks, and a SAS card to then talk to an HP Ultrium (or similar) device? The biggest drawback to this would be cost (400ish for the server, 200 for the SAS connectivity and 1700 for a LTO4 device) Notes: I'd love to be able to say that I'd get rid of tapes entirely, and use some form of hard disk backup. In a previous job, we had LaCie USB drives, which were decidedly unreliable.

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• Mounting a drive in Ubuntu 9.10 (Karmic Koala)

  - by morpheous

  I have just installed Ubuntu on a machine that previously had XP installed on it. The machine has 2 HDD (hard disk drives). I opted to install Ubuntu completely over XP. I am new to Linux, and I am still learning how to navigate teh file structure. However, AFAICT), there is only one drive. I want to be able to store programs etc on the first drive, and store data (program output etc) on the second drive. It appears Ubuntu is not aware that I have 2 drives (on XP, these were drives C and D). How can I mount the second drive (ideally, I want to do this automatically on login, so that the drive is available to me whenever I login - withou manual intervention from me) In XP, I could refer to files on a specific drive by prefixing with the drive letter (e.g. c:\foobar.cpp and d:\foobar.dat). I suspect the notation on ubuntu is different. How may I specify specific files on different drives? Last but notbthe least (a bit unrelated to previous questions). This relates to direcory structure again. I am a developer (C++ for desktops and PHP for websites), I want to install the following apps/ libraries. i). Apache 2.2 ii). PHP 5.2.11 iii). MySQL (5.1) iv). SVN v). Netbeans vi). C++ development tools (gcc, gdb, emacs etc) vii). QT toolkit viii). Some miscellaeous scientific software (e.g. www.r-project.org, www.gnu.org/software/octave/) I would be grateful if a someone can recommend a directory layout for these applications. Regarding development, I would also be grateful if someone could point out where to store my project and source files i.e: (i) *.cpp, *.hpp, *.mak files for cpp projects (ii) individual websites On my XP machine the layout for C++ dev was like this: c:\dev\devtools (common libs and headers etc) c:\dev\workarea (root folder for projects) c:\dev\workarea\c++ (c++ projects) c:\dev\workarea\websites (web projects) I would like to create a similar folder structure on the linux machine, but its not clear whether to place these folders under /, /usr, /home or swomewhere else (there seems to be abffling number of choices, so I want to get it "right" first time - i.e having a directory structure that most developer use, so it is easier when communicating with other ubuntu/linux developers)

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• Microphones not working on Apple macbook Air 1,1 (Early 2008) under Linux

  - by jj_p

  I'm running Linux on an mba. I can't make the microphones (neither external nor internal) work. I test using alsamixer and arecord -d 5 test-mic.waw together with aplay test-mic.waw It seems there is a problem with kernel trying to decipher Apple (intentionally) corrupted 'bios', in particular the mic pins are wrongly assigned. As far as we are concerned here, is there any difference between using EFI and BIOS-compatibility mode? (see https://wiki.archlinux.org/index.php/MacBook where they claim to have everything working out of the box on mba1,1) A nice proposal would be to compile the latest Linux kernel and run hda-jack-retask to find the right configuration (in the case of Realtek codec, the missing things I'm supposed to check are either some vendor-specific COEF verbs, EAPD or GPIO setup.), and then come up with a kernel patch to address the issue. Since I'm not that familiar with this last part of the story, can anyone help me through this process? Some useful data: The output from alsa script run as root http://www.alsa-project.org/db/?f=adae8ebee1007043fe83414ac4972319e02255fa The command hda-jack-sense-test -a (with external mic in) Pin 0x14 (Internal Speaker): present = No Pin 0x15 (Green HP Out): present = Yes Pin 0x16 (Not connected): present = No Pin 0x17 (Not connected): present = No Pin 0x18 (Not connected): present = No Pin 0x19 (Not connected): present = No Pin 0x1a (Not connected): present = No Pin 0x1b (Not connected): present = No Pin 0x1c (Not connected): present = No Pin 0x1d (Not connected): present = No Pin 0x1e (Not connected): present = No Pin 0x1f (Not connected): present = No Most likely the chip is Realtek ALC885 (compare also ALC889A) http://guide-images.ifixit.net/igi/bBTSqaeK5JpQ1AWe.large , although at the moment alsa reads it as ALC889A Takashi Iwai's tutorial https://www.kernel.org/doc/Documentation/sound/alsa/HD-Audio.txt Some people researched the original files from a running OS X installation on this same model (I think the relevant files are AppleHDA.kext/Contents/MacOS/AppleHDA AppleHDA.kext/Contents/PlugIns/AppleHDAHardwareConfigDriver.kext/Contents/Info.p????list AppleHDA.kext/Contents/Resources/layout12.xml.zlib AppleHDA.kext/Contents/Resources/Platforms.xml.zlib) http://www.insanelymac.com/forum/topic/220090-alc889a-pin-configuration/#entry1554954 Datasheet http://www.realtek.info/pdf/ALC885_1-1.pdf (from the same Realtek, one can also try to download Linux driver, but this is just taken from ALSA project, as stated in the readme file.) Compare with this Arch guy http://www.alsa-project.org/db/?f=3ca8243c0626844f0264a3faad0aa72018bc14f4 Here for the first time support to audio (except mics) for mba1,2 (which is morally the same as 1,1) is patched into the kernel http://www.alsa-project.org/pipermail/alsa-devel/2010-February/025511.html The same jack supposedly works both for HP and ext MIC, I think it's called TRRS, and it's the same as the one used e.g. for iphones This guy might have done a similar job, though to a more recent version and for sound globally, not just mics: http://blogs.aerys.in/jeanmarc-leroux/2013/09/15/fixing-2013-macbook-air-ubuntu-sound-issue/ (this is mirror to http://unix.stackexchange.com/questions/73044/microphones-not-working-on-apple-macbook-air-1-1-early-2008-under-linux )

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• Nginx / uWsgi / Django site can handle more traffic with rewrite URL

  - by Ludo

  Hi there. I'm running a Django app, using uWsgi behind Nginx. I've been doing some performance tuning and load testing using ApacheBench and have discovered something unexpected which I wonder if someone could explain for me. In my Nginx config I have a rewrite directive which catches lots of different URL permutations and then forwards them to the canonical URL I wish to use, eg, it traps www.mysite.com/whatever, www.mysite.co.uk/whatever and forwards them all to http://mysite.com/whatever. If I load test against any of the URLs listed with a redirect (ie, NOT the canonical URL which it is eventually forwarded to), it can serve 15000 concurrent connections without breaking a sweat. If I load test against the canonical URL, which the above test I would have expected got forwarded to anyway, it can't handle nearly as much. It will drop about 4000 of the 15000 requests, and can only handle about 9000 reliably. This is the command line I'm using to test: ab -c15000 -n15000 http://www.mysite.com/somepath/ and ab -c15000 -n15000 http://mysite.com/somepath/ I've tried several different types - it makes no different which order I do them in. This doesn't make sense to me - I can understand why the requests involving a redirect may not handle quite so many concurrent connections, but it's happening the other way round. Can anyone explain? I'd really prefer it if the canonical URL was the one which could handle more traffic. I'll post my Nginx config below. Thanks loads for any help! server { server_name www.somesite.com somesite.net www.somesite.net somesite.co.uk www.somesite.co.uk; rewrite ^(.*) http://somesite.com$1 permanent; } server { root /home/django/domains/somesite.com/live/somesite/; server_name somesite.com somesite-live.myserver.somesite.com; access_log /home/django/domains/somesite.com/live/log/nginx.log; location / { uwsgi_pass unix:////tmp/somesite-live.sock; include uwsgi_params; } location /media { try_files $uri $uri/ /index.html; } location /site_media { try_files $uri $uri/ /index.html; } location = /favicon.ico { empty_gif; } }

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• DNS entries for OCS 2007 R2 basic deploy

  - by Anero

  I'm doing a test deploy on a Lab with 3 VMs: TEST-DC: DC / DHCP / DNS / Root CA (Joined to TEST.AD Domain) TEST-CS: OCS Front End (Joined to TEST.AD Domain - IP: 10.0.128.1) TEST-EDGES: OCS Edge Server (Joined to Workgroup: EDGE-WKG - Internal IP: 10.0.128.3, External IPs: 192.168.129.12 - Access Edge Server, 192.168.129.13 - Web Conferencing, 192.168.129.14 - A/V) I can login with the Communicator Client from within computers in the domain (using [email protected]) and even the Automatic Sign-In works as expected. Nevertheless, I cannot login neither from within machines in the domain nor from outside the domain using [email protected]. I'm pretty sure it is a DNS related issue, so I'm including below a list of the entries. DNS Entries on TEST-DC: Forward Lookup Zones TEST.AD sip.test.ad (Host A). IP Address: 10.0.128.1 sipinternal.test.ad (Host A). IP Address: 10.0.128.1 sipexternal.test.ad (Host A). IP Address: 10.0.128.3 _sipinternaltls._tcp.test.ad (Service Location SRV). Port: 5061. Host: sipinternal.test.ad _sipinternal._tcp.test.ad (Service Location SRV). Port: 5061. Host: sipinternal.test.ad _sip._tcp.test.ad (Service Location SRV). Port: 5061. Host: sipexternal.test.ad _sipfederationtls._tcp.test.ad (Service Location SRV). Port: 5061. Host: sipexternal.test.ad _sip._tls.test.ad (Service Location SRV). Port: 443. Host: sipexternal.test.ad TEST.COM sip.test.com (Host A). IP Address: 10.0.128.1 sipinternal.test.com (Host A). IP Address: 10.0.128.1 sipexternal.test.com (Host A). IP Address: 10.0.128.3 _sipinternaltls._tcp.test.com (Service Location SRV). Port: 5061. Host: sipinternal.test.com _sipinternal._tcp.test.com (Service Location SRV). Port: 5061. Host: sipinternal.test.com _sip._tcp.test.com (Service Location SRV). Port: 5061. Host: sipexternal.test.com _sip._tls.test.ad (Service Location SRV). Port: 443. Host: sipexternal.test.ad Validation Errors OCS Front End Edge Server I ran the OCS 2007 Automatic Sign-In Troubleshooting and all DNS entries for both TEST.AD and TEST.COM are reported to be OK. What am I missing?

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• Setting up SSL on apache on linux ubuntu

  - by ThomasReggi

  I'm trying to get SSL to run on my apache web server. I do not have the DNS for the domain setup yet is that an issue? How do I setup SSL on my web server? When I start apache it fails. root@vannevar:/etc/apache2/ssl# service apache2 start * Starting web server apache2 Action 'start' failed. The Apache error log may have more information. The log stats that it's unable to read the certificate. [Thu Jun 28 15:01:02 2012] [error] Init: Unable to read server certificate from file /etc/apache2/ssl/www.example.com.csr [Thu Jun 28 15:01:02 2012] [error] SSL Library Error: 218529960 error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag [Thu Jun 28 15:01:02 2012] [error] SSL Library Error: 218595386 error:0D07803A:asn1 encoding routines:ASN1_ITEM_EX_D2I:nested asn1 error The contents of /etc/apache2/httpd.conf ServerName [SERVERIP] The contents of /etc/apache2/ports.conf # If you just change the port or add more ports here, you will likely also # have to change the VirtualHost statement in # /etc/apache2/sites-enabled/000-default # This is also true if you have upgraded from before 2.2.9-3 (i.e. from # Debian etch). See /usr/share/doc/apache2.2-common/NEWS.Debian.gz and # README.Debian.gz NameVirtualHost [SERVERIP]:443 NameVirtualHost *:80 Listen 80 <IfModule mod_ssl.c> # If you add NameVirtualHost *:443 here, you will also have to change # the VirtualHost statement in /etc/apache2/sites-available/default-ssl # to <VirtualHost *:443> # Server Name Indication for SSL named virtual hosts is currently not # supported by MSIE on Windows XP. Listen 443 </IfModule> <IfModule mod_gnutls.c> Listen 443 </IfModule> The contents of /etc/apache2/sites-available/www.example.com <VirtualHost *:80> ServerAdmin [email protected] ServerName example.com ServerAlias www.example.com DocumentRoot /srv/sites/example.com/public/ ErrorLog /srv/sites/example.com/logs/error.log CustomLog /srv/sites/example.com/logs/access.log combined </VirtualHost> <VirtualHost [SERVERIP]:443> SSLEngine On SSLCertificateFile /etc/apache2/ssl/www.example.com.csr SSLCertificateKeyFile /etc/apache2/ssl/www.example.com.key SSLCACertificateFile /etc/apache2/ssl/comodo.crt ServerAdmin [email protected] ServerName example.com ServerAlias www.example.com DocumentRoot /srv/sites/example.com/public/ ErrorLog /srv/sites/example.com/logs/error.log CustomLog /srv/sites/example.com/logs/access.log combined </VirtualHost>

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• BIND split-view DNS config problem

  - by organicveggie

  We have two DNS servers: one external server controlled by our ISP and one internal server controlled by us. I'd like internal requests for foo.example.com to map to 192.168.100.5 and external requests continue to map to 1.2.3.4, so I'm trying to configure a view in bind. Unfortunately, bind fails when I attempt to reload the configuration. I'm sure I'm missing something simple, but I can't figure out what it is. options { directory "/var/cache/bind"; forwarders { 8.8.8.8; 8.8.4.4; }; auth-nxdomain no; # conform to RFC1035 listen-on-v6 { any; }; }; zone "." { type hint; file "/etc/bind/db.root"; }; zone "localhost" { type master; file "/etc/bind/db.local"; }; zone "127.in-addr.arpa" { type master; file "/etc/bind/db.127"; }; zone "0.in-addr.arpa" { type master; file "/etc/bind/db.0"; }; zone "255.in-addr.arpa" { type master; file "/etc/bind/db.255"; }; view "internal" { zone "example.com" { type master; notify no; file "/etc/bind/db.example.com"; }; }; zone "example.corp" { type master; file "/etc/bind/db.example.corp"; }; zone "100.168.192.in-addr.arpa" { type master; notify no; file "/etc/bind/db.192"; }; I have excluded the entries in the view for allow-recursion and recursion in an attempt to simplify the configuration. If I remove the view and just load the example.com zone directly, it works fine. Any advice on what I might be missing?

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• why i failed to build rtorrent?

  - by hugemeow

  i am not root, so i have to build rtorrent from source and hope to install it in my home directory, but failed, why? [mirror@hugemeow rtorrent]$ ls AUTHORS autogen.sh ChangeLog configure.ac COPYING doc INSTALL Makefile.am NEWS rak README scripts src test [mirror@hugemeow rtorrent]$ ./autogen.sh aclocal... aclocal:configure.ac:7: warning: macro `AM_PATH_CPPUNIT' not found in library autoheader... libtoolize... using libtoolize automake... configure.ac: installing `./install-sh' configure.ac: installing `./missing' src/Makefile.am: installing `./depcomp' autoconf... configure.ac:7: error: possibly undefined macro: AM_PATH_CPPUNIT If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. though autoge failed, configure script is created. [mirror@hugemeow rtorrent]$ ls aclocal.m4 autogen.sh ChangeLog config.h.in configure COPYING doc install-sh Makefile.am missing rak scripts test AUTHORS autom4te.cache config.guess config.sub configure.ac depcomp INSTALL ltmain.sh Makefile.in NEWS README src run configure, and fail for syntax error near unexpected token `1.9.6', what's wrong? what i should do in order to build this rtorrent for my centos? [mirror@hugemeow rtorrent]$ ./configure checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for gawk... gawk checking whether make sets $(MAKE)... yes ./configure: line 2016: syntax error near unexpected token `1.9.6' ./configure: line 2016: `AM_PATH_CPPUNIT(1.9.6)' [mirror@hugemeow rtorrent]$ git branch * master [mirror@hugemeow rtorrent]$ git branch -a * master remotes/origin/HEAD -> origin/master remotes/origin/c++11 remotes/origin/master [mirror@hugemeow rtorrent]$ git tag 0.9.0 0.9.1 [mirror@hugemeow rtorrent]$ git clean -dfx Removing Makefile.in Removing aclocal.m4 Removing autom4te.cache/ Removing config.guess Removing config.h.in Removing config.log Removing config.sub Removing configure Removing depcomp Removing doc/Makefile.in Removing install-sh Removing ltmain.sh Removing missing Removing src/Makefile.in Removing src/core/Makefile.in Removing src/display/Makefile.in Removing src/input/Makefile.in Removing src/rpc/Makefile.in Removing src/ui/Makefile.in Removing src/utils/Makefile.in Removing test/Makefile.in Edit 1: details about libtool and libtools [mirror@hugemeow rtorrent]$ libtoolize --version libtoolize (GNU libtool) 1.5.22 Copyright (C) 2005 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. [mirror@hugemeow rtorrent]$ libtool --version ltmain.sh (GNU libtool) 1.5.22 (1.1220.2.365 2005/12/18 22:14:06) Copyright (C) 2005 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

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• LVS Configuration issue (Using piranha Tool)

  - by PravinG

  I have configured LVS on cent os using piranha tool .I am using vip of internal n/w as gateway for real server we have two NIC one having exteranl Ip and other for internal n/w which is on 192.168.3.0/24 network. But I am not able to connect from client it shows connection refused error . Please suggest iptables rules for private n public n/w to communicate. May be I am missing this . Iptables rules that we have added are : iptables -t nat -A POSTROUTING -p tcp -s 192.168.3.0/24 --sport 5000 -j MASQUERADE this is my ipconfig: eth0 Link encap:Ethernet HWaddr 00:00:E8:F6:74:DA inet addr:122.166.233.133 Bcast:122.166.233.255 Mask:255.255.255.0 inet6 addr: fe80::200:e8ff:fef6:74da/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:94433 errors:0 dropped:0 overruns:0 frame:0 TX packets:130966 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:9469972 (9.0 MiB) TX bytes:19929308 (19.0 MiB) Interrupt:16 Base address:0x2000 eth0:1 Link encap:Ethernet HWaddr 00:00:E8:F6:74:DA inet addr:122.166.233.136 Bcast:122.166.233.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:16 Base address:0x2000 eth1 Link encap:Ethernet HWaddr 00:E0:20:14:F9:2D inet addr:192.168.3.1 Bcast:192.168.3.255 Mask:255.255.255.0 inet6 addr: fe80::2e0:20ff:fe14:f92d/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:123718 errors:0 dropped:0 overruns:0 frame:0 TX packets:148856 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:18738556 (17.8 MiB) TX bytes:11697153 (11.1 MiB) Interrupt:17 Memory:60000400-600004ff eth1:1 Link encap:Ethernet HWaddr 00:E0:20:14:F9:2D inet addr:192.168.3.10 Bcast:192.168.3.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:17 Memory:60000400-600004ff eth2 Link encap:Ethernet HWaddr 00:16:76:6E:D1:D2 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:21 Base address:0xa500 and ipvsadm -ln command [root@abts-kk-static-133 ~]# ipvsadm -ln IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 122.166.233.136:5000 wlc TCP 122.166.233.136:5004 wlc lvs server routing table Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.3.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 122.166.233.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0 169.254.0.0 0.0.0.0 255.255.0.0 U 1003 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 1004 0 0 eth1 0.0.0.0 122.166.233.1 0.0.0.0 UG 0 0 0 eth0 real 1 real 2 we have configured various ports from 5000:5008 . Do we need to this iptables for all ports? Suggest me how should I solve this issue.

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• ubuntu eth0 not reconnecting after cable unplugged

  - by Alex

  I'm running kubuntu 9.10 w/ gnome, I have a static IP defined in /etc/network/interfaces When I unplugged my network cable and rebooted, then reconnected the network cable I was not able to connect. I tried using sudo ifup eth0, and then ifconfig and it seemed as though the IP address had been assigned and I was connected, but I wasn't. I then did ifdown eth0, and again ifup eth0. For some reason I'm not able to access the network. Furthermore, I also attempted to connect via wlan, and was able to connect to the wireless network, but cannot "see" the network. I can't transfer data or access the internet or anything on the network including the router. How do I resolve this? topsy@monolyth:~$ ifconfig eth0 Link encap:Ethernet HWaddr 00:1c:25:1c:df:70 inet addr:192.168.1.145 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::21c:25ff:fe1c:df70/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5720 errors:0 dropped:0 overruns:0 frame:0 TX packets:565 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:378035 (378.0 KB) TX bytes:46832 (46.8 KB) Memory:fe000000-fe020000 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:4 errors:0 dropped:0 overruns:0 frame:0 TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:240 (240.0 B) TX bytes:240 (240.0 B) By access the network I mean the local network as well as the internet. topsy@monolyth:~$ ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=9.14 ms 64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=1.24 ms 64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=1.01 ms 64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=1.00 ms [snip... all OK, icmp_seq from 5-30, time between 0.981-1.25ms] ^C --- 192.168.1.1 ping statistics --- 30 packets transmitted, 30 received, 0% packet loss, time 29035ms rtt min/avg/max/mdev = 0.971/1.300/9.140/1.458 ms topsy@monolyth:~$ route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.1.0 * 255.255.255.0 U 0 0 0 eth0 link-local * 255.255.0.0 U 1000 0 0 eth0 default 192.168.1.1 0.0.0.0 UG 100 0 0 eth0 root@monolyth:~# cat /etc/resolv.conf # Generated by NetworkManager

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• Apache and MySQL taking all the memory? Maximum connections?

  - by lpfavreau

  I've a had one of our servers going down (network wise) but keeping its uptime (so looks the server is not losing its power) recently. I've asked my hosting company to investigate and I've been told, after investigation, that Apache and MySQL were at all time using 80% of the memory and peaking at 95% and that I might be needing to add some more RAM to the server. One of their justifications to adding more RAM was that I was using the default max connections setting (125 for MySQL and 150 for Apache) and that for handling those 150 simultaneous connections, I would need at least 3Gb of memory instead of the 1Gb I have at the moment. Now, I understand that tweaking the max connections might be better than me leaving the default setting although I didn't feel it was a concern at the moment, having had servers with the same configuration handle more traffic than the current 1 or 2 visitors before the lunch, telling myself I'd tweak it depending on the visits pattern later. I've also always known Apache was more memory hungry under default settings than its competitor such as nginx and lighttpd. Nonetheless, looking at the stats of my machine, I'm trying to see how my hosting company got those numbers. I'm getting: # free -m total used free shared buffers cached Mem: 1000 944 56 0 148 725 -/+ buffers/cache: 71 929 Swap: 1953 0 1953 Which I guess means that yes, the server is reserving around 95% of its memory at the moment but I also thought it meant that only 71 out of the 1000 total were really used by the applications at the moment looking a the buffers/cache row. Also I don't see any swapping: # vmstat 60 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 0 0 57612 151704 742596 0 0 1 1 3 11 0 0 100 0 0 0 0 57604 151704 742596 0 0 0 1 1 24 0 0 100 0 0 0 0 57604 151704 742596 0 0 0 2 1 18 0 0 100 0 0 0 0 57604 151704 742596 0 0 0 0 1 13 0 0 100 0 And finally, while requesting a page: top - 08:33:19 up 3 days, 13:11, 2 users, load average: 0.06, 0.02, 0.00 Tasks: 81 total, 1 running, 80 sleeping, 0 stopped, 0 zombie Cpu(s): 1.3%us, 0.3%sy, 0.0%ni, 98.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 1024616k total, 976744k used, 47872k free, 151716k buffers Swap: 2000052k total, 0k used, 2000052k free, 742596k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 24914 www-data 20 0 26296 8640 3724 S 2 0.8 0:00.06 apache2 23785 mysql 20 0 125m 18m 5268 S 1 1.9 0:04.54 mysqld 24491 www-data 20 0 25828 7488 3180 S 1 0.7 0:00.02 apache2 1 root 20 0 2844 1688 544 S 0 0.2 0:01.30 init ... So, I'd like to know, experts of serverfault: Do I really need more RAM at the moment? How do they calculate that for 150 simultaneous connections I'd need 3Gb? Thanks for your help!

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• No Internet connectivity to linux container on Debian

  - by kirankumar

  I have created a linux container with debian-wheezy template. I am not able to have internet connectivity from the container. Below is my network configuration. Could some one please help me in figuring out the issue ? I can ping to the eth0 ip address in the container from the host. Similarly, i can ping from container to br0 ip address on the host. /etc/network/interfaces on host =============================== # The loopback network interface auto lo iface lo inet loopback # The primary network interface #allow-hotplug eth0 auto eth0 iface eth0 inet dhcp # bridge configuration auto br0 iface br0 inet dhcp bridge_ports eth0 vethCE2 bridge_fd 0 bridge_stp off bridge_maxwait 0 ifconfig -a output on host ========================== ifconfig -a br0 Link encap:Ethernet HWaddr 08:00:27:bd:61:5e inet addr:10.0.0.11 Bcast:10.0.0.255 Mask:255.255.255.0 inet6 addr: fe80::a00:27ff:febd:615e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:422 errors:0 dropped:0 overruns:0 frame:0 TX packets:266 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:174110 (170.0 KiB) TX bytes:31582 (30.8 KiB) eth0 Link encap:Ethernet HWaddr 08:00:27:bd:61:5e UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:13017 errors:0 dropped:0 overruns:0 frame:0 TX packets:6210 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:7944745 (7.5 MiB) TX bytes:1368421 (1.3 MiB) 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:835 errors:0 dropped:0 overruns:0 frame:0 TX packets:835 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:91148 (89.0 KiB) TX bytes:91148 (89.0 KiB) vethCE2 Link encap:Ethernet HWaddr fe:3a:43:52:14:49 inet6 addr: fe80::fc3a:43ff:fe52:1449/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:52 errors:0 dropped:0 overruns:0 frame:0 TX packets:205 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2660 (2.5 KiB) TX bytes:31133 (30.4 KiB) brctl show output on host ========================== bridge name bridge id STP enabled interfaces br0 8000.080027bd615e no eth0 vethCE2 /etc/network/interfaces on container ======================================= auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 10.0.0.99 netmask 255.255.255.0 network 10.0.0.0 ifconfig -a output on container =============================== root@CE2:~# ifconfig -a eth0 Link encap:Ethernet HWaddr 00:11:22:33:44:00 inet addr:10.0.0.99 Bcast:10.0.0.255 Mask:255.255.255.0 inet6 addr: fe80::211:22ff:fe33:4400/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:198 errors:0 dropped:0 overruns:0 frame:0 TX packets:52 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:30121 (29.4 KiB) TX bytes:2660 (2.5 KiB) 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:26 errors:0 dropped:0 overruns:0 frame:0 TX packets:26 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2366 (2.3 KiB) TX bytes:2366 (2.3 KiB) Networking content of /var/lib/lxc/CE2/config ============================================== # networking lxc.network.type = veth lxc.network.flags = up lxc.network.link = br0 lxc.network.name = eth0 lxc.network.veth.pair = vethCE2 # It is fine to be commented out #lxc.network.ipv4 = 192.168.10.21/24 # Change this lxc.network.hwaddr = 00:11:22:33:44:00 Let me know if you need any other details. Thanks, Kiran Kumar

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• Lock ups, crashing, transferring files using TrueCrypt with iSCSI

  - by Anthony

  I have looked into this error and it seems that it hasn't been discussed yet - or at least I can't find any information relating. I'm having issues transferring files, usually larger files over a couple of hundred MB. Here is the setup: QNAP 410 as iSCSI Target with multiple LUNs. (CRC is turned on (Data Digest and Header Digest) Server 2003 with iSCSI Initiator version 2.08 - build 3825 (I'm copying files from anothe machine to shares on Server 2003 = into TrueCrypt volume ergo onto the NAS) I have mounted the LUN and formatted it with TrueCrypt using NTFS (Full format, not a quick one). What happens is some files, mainly RAR/Compressed files, appear as if they copy but fail. I've tested this in a number of ways and can repeat the process every time. So I thought to check transfer over iSCSI without TrueCrypt in between, a plain NTFS format - no problem at all. So it would seem TrueCrypt is at least part of the problem here. I haven't tried copying directly from the server yet, I will try that. I also haven't tried it without CRC but fail to see how that would affect this. I will update with my findings later. In the meantime does anyone have any ideas as to what could be wrong? Thanks for your time. Update: I copied a set of files, the ones I was having issues with, to the server then from there I copied those into two places within the TrueCrypt volume (Mounted on the NAS). A seperate directory create in the root of the volume The same initial directory I was using in the first instance Both worked fine. So it now seems clear that this is a link between TrueCrypt, iSCSI and Windows Shares. I say this because I originally setup the whole system using TrueCrypt volume files, not iSCSI. I changed it as it didn't suit my requirements - day wasted as well. While I had this setup though I copied my entire file set to the volume files and all files copied without error - over the network, from a pc, to the server where TrueCrypt had the volume files mounted from the NAS. I didn't bother turning off CRC on the iSCSI system as I highly doubt that is the cause in light of this finding. So any ideas?

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• Remote installing an msi on citrix servers using WMI

  - by capn

  OK, I'm a C# programmer that is trying to streamline the deployment of a custom windows form app I inherited and built an installer for with WiX (this app will need to be reinstalled regularly as I'm making changes to it). I'm not really used to admin type things (or vbs, or WMI, or terminal servers, or Citrix, and even WiX and MSI are not things I usually deal with) but so far I put together some vbs and have an end goal in mind. The msi does work, and I've installed it from the mapped O: drive on my dev machine and while RDP'd to a citrix machine. End Goal: Deploy code written on my dev machine and compiled into an MSI (that I can improve upon within the confines of WiX and whatever the Windows Installer Engine allows) to the cluster of Citrix machines my users have access to. What am I missing in my script to get the MSI to execute on the remote machines? Layout: Machine A is my dev machine, and has the vbs script and the msi file (XP SP3) Machines C1 - C6 are the Citrix Servers that need the application installed them via the msi (Server 2003 R2 SP2) There is also optionally a shared network resource that all the machines can access. Script: 'Set WMI Constants Const wbemImpersonationLevelImpersonate = 3 Const wbemAuthenticationLevelPktPrivacy = 6 'Set whether this is installing to the debug Citrix Servers Const isDebug = true 'Set MSI location 'Network location yields error 1619 (This installation package could not be opened.) msiLocation = "\\255.255.255.255\odrive\Citrix Deployment\Setup.msi" 'Directory on machine A yields error 3 (file not found) 'msiLocation = "C:\Temp\Deploy\Setup.msi" 'Mapped network drive (on both machines) yield error 3 (file not found) 'msiLocation = "O:\Citrix Deployment\Setup.msi" 'Set login information strDomain = "MyDomain" Wscript.StdOut.Write "user name:" strUser = Wscript.StdIn.ReadLine Set objPassword = CreateObject("ScriptPW.Password") Wscript.StdOut.Write "password:" strPassword = objPassword.GetPassword() 'Names of Citrix Servers Dim citrixServerArray If isDebug Then citrixServerArray = array("C4") Else 'citrixServerArray = array("C1","C2","C3","C5","C6") End If 'Loop through each Citrix Server For Each citrixServer in citrixServerArray 'Login to remote computer Set objLocator = CreateObject("WbemScripting.SWbemLocator") Set objWMIService = objLocator.ConnectServer(citrixServer, _ "root\cimv2", _ strUser, _ strPassword, _ "MS_409", _ "ntlmdomain:" + strDomain) 'Set Remote Impersonation level objWMIService.Security_.ImpersonationLevel = wbemImpersonationLevelImpersonate objWMIService.Security_.AuthenticationLevel = wbemAuthenticationLevelPktPrivacy 'Reference to a process on the machine Dim objProcess : Set objProcess = objWMIService.Get("Win32_Process") 'Change user to install for terminal services errReturn = objProcess.Create _ ("cmd.exe /c change user /install", Null, Null, intProcessID) WScript.Echo errReturn 'Install MSI here 'Reference to a product on the machine Set objSoftware = objWMIService.Get("Win32_Product") 'All users set in option parameter, I'm led to believe that the third parameter is actually ignored 'http://www.webmasterkb.com/Uwe/Forum.aspx/vbscript/2433/Installing-programs-with-VbScript errReturn = objSoftware.Install(msiLocation,"ALLUSERS=2 REBOOT=ReallySuppress",True) Wscript.Echo errReturn 'Change user back to execute errReturn = objProcess.Create _ ("cmd.exe /c change user /execute", Null, Null, intProcessID) WScript.Echo errReturn Next I also tried using this to install, it doesn't return an error code, but doesn't install the msi either, and it makes me wonder if the change user /install command is even really working. errReturn = objProcess.Create _ ("cmd.exe /c msiexec /i ""O:\Citrix Deployment\Setup.msi"" /quiet") Wscript.Echo errReturn

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