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• Slow Windows Explorer on Windows 7

  - by MadBoy

  I have Laptop with i7 (4 cores), 8GB ram and SSD OCZ Vertex 3 MaxIOPS which in testing that I did just now does 400mb/s+ read/write. However the responsiveness of Windows Explorer is far from being perfect. Opening up Computer, Documents, going into folders is very slow (1-5seconds). I don't have any viruses or spyware and I have tried changing properties to optimize view for General Items. I tried disabling Search Indexer but it made search in Outlook 2010 crawl and didn't bring any other effect. Even double clicking on file takes some time to open things up (like clicking a Word document). I don't have any drives mapped, my computer is not joined to domain. I have multiple VPN connections that I connect to but they all have disabled default gateways. I tried using CC Cleaner or some Windows 7 Tweaks app to disable some things. I am power user using Visual Studio, Tortoise SVN and other developer/administration apps. Any non obvious ideas? Edit: So I've been trying to pinpoint where the issue comes from and it seems that straight after reboot Windows Explorer opens very fast, when I load 3-4 programs (Royal TS, Visual Studio, Outlook) it's noticeably slower and the more programs I have it gets worse. After I start closing programs it starts working better and if I leave 2 open it's fast again. I tried doing some research with DiskMon and other programs from sysinternals but couldn't find anything suspicious. Below are stats during normal usage with a lots of programs open: - Ram usage with a lot of programs open and no swap file (i disabled it for testing): 6.95GB - CPU usage: 15%, none of the cores takes more then 50% (I have VS 2010 open x 4) HD Tune Pro: OCZ-VERTEX3 MI Benchmark Test capacity: full Read transfer rate Transfer Rate Minimum : 363.9 MB/s Transfer Rate Maximum : 505.5 MB/s Transfer Rate Average : Access Time : Burst Rate : CPU Usage : HD Tune Pro: OCZ-VERTEX3 MI File Benchmark Drive C: Transfer rate test File Size: 500 MB Sequential read 484102 KB/s Sequential write 444714 KB/s Random read 7779 IOPS Random write 16888 IOPS Random read (queue depth = 32) 73007 IOPS Random write (queue depth = 32) 69790 IOPS HD Tune Pro: OCZ-VERTEX3 MI Random Access Test capacity: full Read test Transfer size operations / sec avg. access time max. access time avg. speed 512 bytes 3260 IOPS 0.306 ms 2.106 ms 1.592 MB/s 4 KB 4161 IOPS 0.240 ms 2.006 ms 16.256 MB/s 64 KB 2382 IOPS 0.419 ms 2.367 ms 148.934 MB/s 1 MB 449 IOPS 2.225 ms 4.197 ms 449.407 MB/s Random 809 IOPS 1.235 ms 6.551 ms 410.527 MB/s HD Tune Pro: OCZ-VERTEX3 MI Extra Tests Test capacity: full Random seek 3975 IOPS 0.252 ms 1.941 MB/s Random seek 4 KB 4245 IOPS 0.236 ms 16.583 MB/s Butterfly seek 4086 IOPS 0.245 ms 1.995 MB/s Random seek / size 64 KB 3812 IOPS 0.262 ms 58.606 MB/s Random seek / size 8 MB 120 IOPS 8.348 ms 485.737 MB/s Sequential outer 4524 IOPS 0.221 ms 282.721 MB/s Sequential middle 4429 IOPS 0.226 ms 276.818 MB/s Sequential inner 5504 IOPS 0.182 ms 344.000 MB/s Burst rate 4472 IOPS 0.224 ms 279.475 MB/s

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• How is incoming SMTP mail being delivered despite blocked port

  - by Josh

  I setup a MX mail server, everything works despite port 25 being blocked, I'm stumped as to why I am able to receive email with this setup, and what the consequences might be if I leave it this way. Here are the details: Connections to SMTP over port 25 and 587 both reliably connect over my local network. Connections to SMTP over port 25 are blocked from external IPs (the ISP is blocking the port). Connections to Submission SMTP over port 587 from external IPs are reliable. Emails sent from gmail, yahoo, and a few other addresses all are being delivered. I haven't found an email provider that fails to deliver mail to my MX. So, with port 25 blocked, I am assuming other MTA servers fallback to port 587, otherwise I can't imagine how the mail is received. I know port 25 shouldn't be blocked, but so far it works. Are there mail servers that this will not work with? Where can I find more about how this is working? -- edit More technical detail, to validate that I'm not missing something silly. Obviously in the transcript below I've replaced my actual domain with example.com. # DNS MX record points to the A record. $ dig example.com MX +short 1 example.com $ dig example.com A +short <Public IP address> # From a public server (not my ISP hosting the mail server) # We see port 25 is blocked, but port 587 is open $ telnet example.com 25 Trying <public ip>... telnet: Unable to connect to remote host: Connection refused # Let's try openssl $ openssl s_client -starttls smtp -crlf -connect example.com:25 connect: Connection refused connect:errno=111 # Again from a public server, we see port 587 is open $ telnet example.com 587 Trying <public ip>... Connected to example.com. Escape character is '^]'. 220 example.com ESMTP Postfix ehlo example.com 250-example.com 250-PIPELINING 250-SIZE 10485760 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250-BINARYMIME 250 CHUNKING quit 221 2.0.0 Bye Connection closed by foreign host. Here is a portion from the mail log when receiving a message from gmail: postfix/postscreen[93152]: CONNECT from [209.85.128.49]:48953 to [192.168.0.10]:25 postfix/postscreen[93152]: PASS NEW [209.85.128.49]:48953 postfix/smtpd[93160]: connect from mail-qe0-f49.google.com[209.85.128.49] postfix/smtpd[93160]: 7A8C31C1AA99: client=mail-qe0-f49.google.com[209.85.128.49] The log shows that a connection was made to the local IP on port 25 (I'm not doing any port mapping, so it is port 25 on the public IP too). Seeing this leads me to hypothesize that the ISP block on port 25 only occurs when a connection is made from an IP address that is not known to be a mail server. Any other theories?

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• Apache2 return 404 for proxy requests before reaching WSGI

  - by Alejandro Mezcua

  I have a Django app running under Apache2 and mod_wsgi and, unfortunately, lots of requests trying to use the server as a proxy. The server is responding OK with 404 errors but the errors are generated by the Django (WSGI) app, which causes a high CPU usage. If I turn off the app and let Apache handle the response directly (send a 404), the CPU usage drops to almost 0 (mod_proxy is not enabled). Is there a way to configure Apache to respond directly to this kind of requests with an error before the request hits the WSGI app? I have seen that maybe mod_security would be an option, but I'd like to know if I can do it without it. EDIT. I'll explain it a bit more. In the logs I have lots of connections trying to use the server as a web proxy (e.g. connections like GET http://zzz.zzz/ HTTP/1.1 where zzz.zzz is an external domain, not mine). This requests are passed on to mod_wsgi which then return a 404 (as per my Django app). If I disable the app, as mod_proxy is disabled, Apache returns the error directly. What I'd finally like to do is prevent Apache from passing the request to the WSGI for invalid domains, that is, if the request is a proxy request, directly return the error and not execute the WSGI app. EDIT2. Here is the apache2 config, using VirtualHosts files in sites-enabled (i have removed email addresses and changed IPs to xxx, change the server alias to sample.sample.xxx). What I'd like is for Apache to reject any request that doesn't go to sample.sample.xxx with and error, that is, accept only relative requests to the server or fully qualified only to the actual ServerAlias. default: <VirtualHost *:80> ServerAdmin [email protected] ServerName X.X.X.X ServerAlias X.X.X.X DocumentRoot /var/www/default <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/> Options FollowSymLinks AllowOverride None Order allow,deny allow from all </Directory> ErrorDocument 404 "404" ErrorDocument 403 "403" ErrorDocument 500 "500" ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> actual host: <VirtualHost *:80> ErrorDocument 404 "404" ErrorDocument 403 "403" ErrorDocument 500 "500" WSGIScriptAlias / /var/www/sample.sample.xxx/django.wsgi ServerAdmin [email protected] ServerAlias sample.sample.xxx ServerName sample.sample.xxx CustomLog /var/www/sample.sample.xxx/log/sample.sample.xxx-access.log combined Alias /robots.txt /var/www/sample.sample.xxx/static/robots.txt Alias /favicon.ico /var/www/sample.sample.xxx/static/favicon.ico AliasMatch ^/([^/]*\.css) /var/www/sample.sample.xxx/static/$1 Alias /static/ /var/www/sample.sample.xxx/static/ Alias /media/ /var/www/sample.sample.xxx/media/ <Directory /var/www/sample.sample.xxx/static/> Order deny,allow Allow from all </Directory> <Directory /var/www/sample.sample.xxx/media/> Order deny,allow Allow from all </Directory> </VirtualHost>

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• How to troubleshoot performance issues of PHP, MySQL and generic I/O

  - by jbx

  I have a WordPress based website running on a shared hosting. Its response time is very decent (around 2s to retrieve the HTML page and 5s to load all the resources). I was planning to move it to a dedicated virtual server (Ubuntu 12.04 LTS), which should theoretically improve things and make them more consistent given its not shared. However I observed severe performance degredation, with the page taking 10seconds to be generated. I ruled out network issues by editing /etc/hosts on the server and mapping the domain to 127.0.0.1. I used the Apache load tester ab to get the HTML, so JS, CSS and images are all excluded. It still took 10 seconds. I have Zpanel installed on the server which also uses MySQL, and its pages come up quite fast (1.5s) and also phpMyAdmin. Performing some queries on the wordpress database directly through phpMyAdmin returns them quite fast too, with query times in the 10 to 30 millisecond region. Memory is also sufficient, with only 800Mb being used of the 1Gb physical memory available, so it doesn't seem to be a swap issue either. I have also installed APC to try to improve the PHP performance, but it didn't have any effect. What else should I look for? What could be causing this degradation in performance? Could it be some kind of I/O issue since I am running on a cloud based virtual server? I wish to be able to raise the issue with my provider but without showing actual data from some diagnosis I am afraid he will just blame my application. UPDATE with sar output (every second) when I did an HTTP request: 02:31:29 CPU %user %nice %system %iowait %steal %idle 02:31:30 all 0.00 0.00 0.00 0.00 0.00 100.00 02:31:31 all 2.22 0.00 2.22 0.00 0.00 95.56 02:31:32 all 41.67 0.00 6.25 0.00 2.08 50.00 02:31:33 all 86.36 0.00 13.64 0.00 0.00 0.00 02:31:34 all 75.00 0.00 25.00 0.00 0.00 0.00 02:31:35 all 93.18 0.00 6.82 0.00 0.00 0.00 02:31:36 all 90.70 0.00 9.30 0.00 0.00 0.00 02:31:37 all 71.05 0.00 0.00 0.00 0.00 28.95 02:31:38 all 14.89 0.00 10.64 0.00 2.13 72.34 02:31:39 all 2.56 0.00 0.00 0.00 0.00 97.44 02:31:40 all 0.00 0.00 0.00 0.00 0.00 100.00 02:31:41 all 0.00 0.00 0.00 0.00 0.00 100.00 My suspicion that this comes from I/O related issue is also because a caching plugin I use to reduce the amount of queries to the database, by precompiling PHP pages is actually making things worse instead of better. It seems that file access is making things worse instead.

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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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• Installing OpenLDAP on Fedora 12: ldap_bind: Invalid credentials (49)

  - by Alpha Hydrae

  I've been trying to set up the OpenLDAP installed by default on Fedora 12, very unsuccessfully. My ultimate goal is to use LDAP authentication for user login and Apache, using the OpenLDAP server running on the same machine. The server is running, but the error I always get when I try to use ldapsearch or ldapadd is: ldap_bind: Invalid credentials (49) I've been following these tutorials, but none of them helped me: http://www.howtoforge.com/openldap_fedora7 http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/ref-guide/s1-ldap-quickstart.html http://www.howtoforge.com/linux_ldap_authentication http://docs.fedoraproject.org/deployment-guide/f12/en-US/html/s1-ldap-pam.html http://www.openldap.org/doc/admin24/quickstart.html First, some components were already installed, and I installed these with yum: yum install openldap-servers openldap-devel Then, I created a basic slapd.conf file in /etc/openldap: database bdb suffix "dc=sniejana-sandbox,dc=com" rootdn "cn=root,dc=sniejana-sandbox,dc=com" rootpw {SSHA}cxdz55ygPu4T3ykg7dgu+L0VRvsFSeom directory /var/lib/ldap/sniejana-sandbox.com I obtained the rootpw with this command: slappasswd -s changeme I also created the /var/lib/ldap/sniejana-sandbox.com directory and made sure the entire contents of /var/lib/ldap were owned by the ldap user. I found two ldap.conf files, one in /etc and one in /etc/openldap. I don't know which is the right one. If I understood correctly, this file is to configure the client. I put this in both: HOST localhost BASE dc=sniejana-sandbox,dc=com I then ran the server with: service slapd start It said OK. Most of the tutorials above say to use the command ldapsearch -D "cn=Manager,dc=my-domain,dc=com" -W to ensure that everything's working. When I execute this command, a password prompt appears, and after entering the password, I get the error. ldapsearch -D "cn=root,dc=sniejana-sandbox,dc=com" -W Enter LDAP password: ldap_bind: Invalid credentials (49) The same thing happens when trying to use ldapadd. I tried with an encrypted and unencrypted password in slapd.conf, it doesn't change anything. Adding a -x for simple authentication doesn't change anything either. netstat -ap confirms the server is listening: tcp 0 0 *:ldap *:* LISTEN 4148/slapd tcp 0 0 *:ldap *:* LISTEN 4148/slapd ps -ef|grep slapd confirms the process is running: ldap 4148 1 0 15:22 ? 00:00:00 /usr/sbin/slapd -h ldap:/// -u ldap Running slaptest procudes config file testing succeeded. I read somewhere that the command ldapsearch -x -b '' -s base '(objectclass=*)' namingContext can confirm the server is running. It appears to work: # extended LDIF # # LDAPv3 # base <> with scope baseObject # filter: (objectclass=*) # requesting: namingContext # # dn: # search result search: 2 result: 0 Success # numResponses: 2 # numEntries: 1 I'm running out of ideas. Am I missing something obvious?

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• varnish3, mod_geoip with apache2 using mod_rewrite and mod_rpaf

  - by mursalat

  I am maintaining a website with 3 different versions of the site, with 3 different languages, handles with a single system written in php, which takes in environment variables based on the domain name that is being accessed. These are the three sites: myshop.com : english international version myshop.eu : european version of site myshop.ru : russian version of the site when myshop.com is accessed from russia it is to be redirected to myshop.ru, and any country from europe accesses myshop.com, is redirected to myshop.eu, and international visitors stay at myshop.com, although they can go to the country specific site. All these redirections for the country is done using GeoIP apache2 mod in order to determine the country code, which is used in a RewriteCondition to state a RewriteRule, there are some exceptions of IPs that do not do the rewrite for, basically the IPs of the developer's PCs. The site has been doing just fine, until we decided to setup varnish to give the site a boost, it really did give it a great boost, but the country specific rewrites has become buggy. What started to happen is that a russian visitor can go to myshop.com and won't be redirected, until he clicks a random link (perhaps a link not cached by varnish yet) and the user is redirected to their specific country. For that i setup mod_rpaf, and for exceptions to the rewrite rule (for the developer's ip), i used this RewriteCond %{HTTP:X-FORWARDED-FOR} !^43\.43\.43\.43, and i restarted varnish and apache2, it worked for a while, then it messed up again. And whole day i have been doing changes however i have little no clue as to what's going on, sometimes it works, and sometimes it doesn't, and sometimes it half works, etc... As for geoip, i used a php to check the $_SERVER variable, and here is the general idea of the output [HTTP_X_FORWARDED_FOR] => 43.43.43.44 [HTTP_X_VARNISH] => 1705675599 [SERVER_ADDR] => 127.0.0.1 [SERVER_PORT] => 80 [REMOTE_ADDR] => 43.43.43.44 [GEOIP_ADDR] => 43.43.43.44 [GEOIP_CONTINENT_CODE] => EU [GEOIP_COUNTRY_CODE] => FR [GEOIP_COUNTRY_NAME] => France Now, thanks to the "random" redirects, i hardly have a clue as to what is going on, so can you guys please give me some ideas as to what tools to use to debug this? I have tried to see the redirect logs, but they really dont show much, and varnishlog isn't helping much either - although i must admit i am no professional at varnish. I believe the problem is with varnish trying to cache the url, and thus apache redirects are not being done properly, however visits the site first has a redirect, and based on that other users are served the content, depending on from where the user was when the cache was last updated, is it correct? if so, how can i solve the problem? Also, i have the option of using geoip redirects on varnish3 instead of using apache2 to do the redirects, is that what the best practice is? Any suggestion as to debugging this or to fix this would be helpful! thnx!

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• Troubleshooting an unstable internet connection

  - by Konrad Rudolph

  My MacBook Pro running OS X (10.9, but I had the same problem before) is connected to a Belkin router via WiFi and, using Virgin Media as the ISP, to the internet. The connection is extremely unstable – on some days, I get a ping timeout every few seconds. In addition, some domains seem to suffer general connectivity issues. For instance, I often find that while the youtube.com website loads, none of the videos (which are hosted on a separate domain) do. At other times, videos load but always fail to buffer, even though the actual connection speed is ok, even though I’ve disabled dash playback. Since I’m living in a rented room and the ISP contract isn’t actually mine I’ve got only limited possibilities of addressing the problem. In particular, I have no access to the router configuration and my non tech savvy landlady, while sympathetic, is not in a great hurry to hand the problem over to the ISP’s customer support. What’s more, I seem to be the only person in the house experiencing these problems – but I can imagine that this is simply because I’m the only one who’s using the internet continuously. I’m searching for specific tests that might be able to pinpoint – and ideally solve – the problem. So far all I’ve managed to do is establish that Virgin is routing my traffic in mysterious ways. Here’s an excerpt from traceroute google.co.uk. It’s worth mentioning that the host name doesn’t seem to matter a lot, the trace route is always the same. traceroute: Warning: google.co.uk has multiple addresses; using 62.254.36.148 traceroute to google.co.uk (62.254.36.148), 64 hops max, 52 byte packets 1 (192.168.2.1) 1.112 ms 1.300 ms 2.359 ms 2 10.100.32.1 (10.100.32.1) 11.926 ms 10.217 ms 24.987 ms 3 cmbg-core-1a-ae3-610.network.virginmedia.net (80.1.202.93) 28.809 ms * 66.653 ms 4 popl-bb-1b-ae16-0.network.virginmedia.net (212.43.163.141) 13.759 ms 126.504 ms 20.472 ms 5 nrth-bb-1b-et-010-0.network.virginmedia.net (62.253.175.57) 28.357 ms 16.398 ms 42.387 ms 6 nrth-bb-1c-ae1-0.network.virginmedia.net (62.253.174.110) 27.441 ms 15.622 ms 12.044 ms 7 lutn-icdn-1-ae0-0.network.virginmedia.net (62.253.175.82) 16.678 ms 28.463 ms 28.253 ms 8 * * * 9 * * * 10 * * * ^C If I let it, this goes on until the end of time. It never seems to reach a destination. Is this normal? A friend living in the same town who is also with Virgin Media has a more conventional traceroute output: 7 hops to google.co.uk, all of which send the ICMP TIME_EXCEEDED response. The obvious fix – rebooting the router – doesn’t seem to help. As far as I can tell, the WiFi connection is stable (I can always ping the router) so the problem is further downstream. I’ve tried using an alternative DNS before (OpenDNS) but if anything, this made things worse. In fact, it made all Google services nigh unreachable.

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• SSSD Authentication

  - by user24089

  I just built a test server running OpenSuSE 12.1 and am trying to learn how configure sssd, but am not sure where to begin to look for why my config cannot allow me to authenticate. server:/etc/sssd # cat sssd.conf [sssd] config_file_version = 2 reconnection_retries = 3 sbus_timeout = 30 services = nss,pam domains = test.local [nss] filter_groups = root filter_users = root reconnection_retries = 3 [pam] reconnection_retries = 3 # Section created by YaST [domain/mose.cc] access_provider = ldap ldap_uri = ldap://server.test.local ldap_search_base = dc=test,dc=local ldap_schema = rfc2307bis id_provider = ldap ldap_user_uuid = entryuuid ldap_group_uuid = entryuuid ldap_id_use_start_tls = True enumerate = False cache_credentials = True chpass_provider = krb5 auth_provider = krb5 krb5_realm = TEST.LOCAL krb5_kdcip = server.test.local server:/etc # cat ldap.conf base dc=test,dc=local bind_policy soft pam_lookup_policy yes pam_password exop nss_initgroups_ignoreusers root,ldap nss_schema rfc2307bis nss_map_attribute uniqueMember member ssl start_tls uri ldap://server.test.local ldap_version 3 pam_filter objectClass=posixAccount server:/etc # cat nsswitch.conf passwd: compat sss group: files sss hosts: files dns networks: files dns services: files protocols: files rpc: files ethers: files netmasks: files netgroup: files publickey: files bootparams: files automount: files ldap aliases: files shadow: compat server:/etc # cat krb5.conf [libdefaults] default_realm = TEST.LOCAL clockskew = 300 [realms] TEST.LOCAL = { kdc = server.test.local admin_server = server.test.local database_module = ldap default_domain = test.local } [logging] kdc = FILE:/var/log/krb5/krb5kdc.log admin_server = FILE:/var/log/krb5/kadmind.log default = SYSLOG:NOTICE:DAEMON [dbmodules] ldap = { db_library = kldap ldap_kerberos_container_dn = cn=krbContainer,dc=test,dc=local ldap_kdc_dn = cn=Administrator,dc=test,dc=local ldap_kadmind_dn = cn=Administrator,dc=test,dc=local ldap_service_password_file = /etc/openldap/ldap-pw ldap_servers = ldaps://server.test.local } [domain_realm] .test.local = TEST.LOCAL [appdefaults] pam = { ticket_lifetime = 1d renew_lifetime = 1d forwardable = true proxiable = false minimum_uid = 1 clockskew = 300 external = sshd use_shmem = sshd } If I log onto the server as root I can su into an ldap user, however if I try to console locally or ssh remotely I am unable to authenticate. getent doesn't show the ldap entries for users, Im not sure if I need to look at LDAP, nsswitch, or what: server:~ # ssh localhost -l test Password: Password: Password: Permission denied (publickey,keyboard-interactive). server:~ # su test test@server:/etc> id uid=1000(test) gid=100(users) groups=100(users) server:~ # tail /var/log/messages Nov 24 09:36:44 server login[14508]: pam_sss(login:auth): system info: [Client not found in Kerberos database] Nov 24 09:36:44 server login[14508]: pam_sss(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/ttyS1 ruser= rhost= user=test Nov 24 09:36:44 server login[14508]: pam_sss(login:auth): received for user test: 4 (System error) Nov 24 09:36:44 server login[14508]: FAILED LOGIN SESSION FROM /dev/ttyS1 FOR test, System error server:~ # vi /etc/pam.d/common-auth auth required pam_env.so auth sufficient pam_unix2.so auth required pam_sss.so use_first_pass server:~ # vi /etc/pam.d/sshd auth requisite pam_nologin.so auth include common-auth account requisite pam_nologin.so account include common-account password include common-password session required pam_loginuid.so session include common-session session optional pam_lastlog.so silent noupdate showfailed

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• Yahoo Webmail - Garbled Quote Text

  - by baultista

  I've encountered a very strange problem when trying to reply to e-mail via my Yahoo Web Mail from a family member's computer. She received an e-mail from a client who is using Microsoft Outlook. When I receive the message it looks perfectly fine in my browser and I can read it. However, when I try to reply to the e-mail the quoted text looks as such: > #yiv9181642880 p.yiv9181642880msonormal1114, #yiv9181642880 > li.yiv9181642880msonormal1114, #yiv9181642880 > div.yiv9181642880msonormal1114 > {margin-right:0in;margin-left:0in;font-size:12.0pt;} > #yiv9181642880 p.yiv9181642880msoacetate1114, #yiv9181642880 > li.yiv9181642880msoacetate1114, #yiv9181642880 > div.yiv9181642880msoacetate1114 > {margin-right:0in;margin-left:0in;font-size:12.0pt;} > #yiv9181642880 p.yiv9181642880emailquote1114, #yiv9181642880 > li.yiv9181642880emailquote1114, #yiv9181642880 > div.yiv9181642880emailquote1114 > {margin-right:0in;margin-left:0in;font-size:12.0pt;} > #yiv9181642880 p.yiv9181642880msochpdefault1114, > #yiv9181642880 li.yiv9181642880msochpdefault1114, > #yiv9181642880 div.yiv9181642880msochpdefault1114 > {margin-right:0in;margin-left:0in;font-size:12.0pt;} > #yiv9181642880 p.yiv9181642880msonormal53, #yiv9181642880 > li.yiv9181642880msonormal53, #yiv9181642880 > div.yiv9181642880msonormal53 > {margin-right:0in;margin-left:0in;font-size:12.0pt;} It's the strangest thing. It doesn't happen with all e-mails except this particular one. At a glance it almost looks like raw CSS code that's being displayed, but I really can't understand why. So far I have tried the following: Try a different browser, both IE11 and Google Chrome Check the browser encoding settings Check Yahoo Web Mail's encoding/font settings My only other guess is that the client used some weird font or formatting on the e-mail that is throwing the message body out of sync. Unfortunately for my family member, she is a contractor working with a medium-sized company that refuses to provide her with a domain e-mail address, so she is forced to conduct business this way. Simply asking the sender to use a more widely supported font wouldn't be an acceptable solution here. Any thoughts?

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• GPO Software Uninstall Not Taking Place

  - by burmat

  I am having some trouble with my software GPO's and can't seem to find any answers using Google. I successfully deployed software using my policy but when I delete another, the uninstallation of the software does not take place. What I did: Deployed software using a GPO, used gpupdate /force on the workstation to update, reboot, and install the software Deleted another software installation by: Right-Click All Tasks Remove 'Immediately uninstall the software from users and computers' From there, I did another gpupdate /force to try and get the GPO to refresh and uninstall the software on the workstation. This did not work. I then forced replication between my domain controllers and ran another gpupdate /force on the workstation and this did not uninstall the software. There are not error logs or indications that the uninstall is being triggered when I go into the event viewer, and I know for a fact that the policy is working in other aspects. So my questions is: Where do I look next to find the answer as to why GPO software deployments are working but un-installations are not, based off of what I have already tried? Thank you in advance. UPDATE: After using gpresult /z, there is no indication of a pending un-installation or removal of software. Under the section entitled "Software Installations", the software I am trying to uninstall is not listed. There is no other indication that the software I am trying to uninstall even exists. I also turned on RSoP logging and did (yet another) gpupdate /force to yield no blatant results. There is no indication that an uninstall event was even triggered, let alone incapability or failure. Although I am sure I marked it to uninstall in case of two events (the falling out of the scope of management, as well as the removal of the entry), I am beginning to think the entry just never triggered something that should have been triggered. UPDATE #2: After troubleshooting this (frustrating) application assignment, I have chalked it up as a fluke. I have tested with other software to make sure that the uninstall of other application assignments is actually working, so I am assuming it is something related to the package directly. There is the possibility that my problem resides in something related to what @joeqwerty linked in a comment below but because I can't go back in time, I don't think I will be able to prove it. I will probably be running a script via another GPO to guarantee the un-installation of left over package installs. For now, Evan Anderson is getting the answer because of the debugging information I was able to put to good use. Thank you to everyone that helped contribute so far!

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• Providing reverse records for records that map to ISP IP

  - by thejartender

  I have been instructed to use my ISP ip (as a temporary fix for mapping my name server and domain records as my router dishes out rfc 1918 adresses to devices in my network where I am running an Ubuntu server, my router and my development laptop andso I have fixed: $TTL 3H @ IN SOA ns.thejarbar.org. email. ( 13112012 28800 3600 604800 38400 ); thejarbar.org. IN A 10.0.0.42 @ IN NS ns.thejarbar.org. yuccalaptop IN A 10.0.0.19 ns IN A 10.0.0.42 gw IN A 10.0.0.138 www IN CNAME thejarbar.org. To a temporary version of: $TTL 3H @ IN SOA ns.thejarbar.org. email. ( 13112012 28800 3600 604800 38400 ); thejarbar.org. IN A 88.89.190.171 @ IN NS ns.thejarbar.org. yuccalaptop IN A 10.0.0.19 ns IN A 88.89.190.171 gw IN A 10.0.0.138 www IN CNAME thejarbar.org. I am using bind and when using named-checkzone on this file according to my zone configurations, this file has no errors. I then run dig thejarbar.org @88.89.190.171 and get an expected authorative reply. My issue is creating my reverse DNS SOA zone and I would gratly appreciate assistance and guidance. I am stuck on how to represent the reverse records correctly for the eddresses that map to my isp IP. I am trying: $TTL 3H 0.0.10.in-addr.arpa. IN SOA ns.thejarbar.org. email. ( 13112012 28800 3600 604800 38400 ); 171.190.89.88. IN PTR thejarbar.org. 171.190.89.88. IN NS ns.thejarbar.org. 19 IN PTR yuccalaptop.thejarbar.org. 138 IN PTR gw.thejarbar.org. www IN PTR www.thejarbar.org. But running named-checkzone on this file leaves an erroneous return that IN: has no NS records I would greatly appreciate assistance

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• Setting up Virtual Hosts with Apache on Windows 2008 server for multiple sites. Complicated setup,

  - by Roeland

  Hey guys! I am setting up apache on my windows 2008 server at my home. It will serve 2 functions. Subversion hosting to allow me and some others to manage company documents with version control Local website hosting for web development. Will need to run several websites since I generally work on more then one site at a time. Heres what I have done so far. I set up subversion and apache 2.2 using some walk troughs. I changed the default port to 1337. (im a nerd) Using dyndns.com I created a domain to forward to my home ip which is dynamic. ( company.gotdns.org) I then went into my DNS for my company.com and added a record to point repo.company.com to company.gotdns.org At this point people who need access to my file repository can access by going to repo.company.com/repo which is good so far. My question comes on the next step, setting up virtual hosts with apache. Ideally I would like to have my local website be viewable by some others in the company from their homes. So, say I am working on site1, I would like to have them be able to view this by going site1.roeland.bythepixel.com. At the same time, I would like to have site10.wouter.bythepixel.com go to his local setup for site10. What I have done for this: I went into my DNS for company.com and added a record to point roeland.company.com to company.gotdns.org (which translates to my ip). I added code to my httpd-vhosts.conf (listed at bottom) I added code to my host file (listed at bottom) Hah, so of course this doenst work as excepted.. going to site1.roeland.bythepixel.com doesnt bring up my test1 site. Could anyone point me where I may be going wrong? Thanks! hosts: 127.0.0.1 localhost 127.0.0.1 sensenich.roeland.bythepixel.com ::1 localhost httpd-vhosts.conf: <VirtualHost *:80> ServerAdmin [email protected] DocumentRoot "F:/Current Projects/sensenich.com" ServerName sensenich.roeland.bythepixel.com ErrorLog "logs/sensenich.roeland.bythepixel.com-error.log" CustomLog "logs/sensenich.roeland.bythepixel.com-access.log" common </VirtualHost>

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• Internet connection sharing between Windows XP and Windows 7

  - by Dave

  I bought my lil sister's netbooks for Christmas and I've been having a heck of a time trying to get Internet Connection Sharing to work. The host computer is a Windows XP box and it uses a US Cellular 3G modem dongle thingy to set it's Internet access. Additionally I have a hard wire plugged into the LAN1 port of the router described below. (I tried the WAN port out of desperation but things didn't seem happy that way.) Additionally they have a linksys router (can't remember specific model number, I will find this out) that I was using to take advantage of it's wireless capabilities. Originally thought about updating the router to use dd-wrt, but after reading the instructions it looked like to much of a pita (had to downgrade firmware, then install dd-wrt) to set up, eventually I caved, out of desperation, and ended up successfully installing dd-wrt on the router. I have DHCP turned off on the router, actually all I could select was DHCP forwarder. The netbooks both have windows 7 starter installed on them. Initially, I had the networks joined to a homegroup but I dropped that and everyone is able to see everyone in their respective network explorers. When I turn on Internet Connection Sharing on the host, its IP on the LAN changed to 192.168.0.1, so I arbitrarily decided to assign the router to port 192.168.0.100. When I connect the netbooks they get IPs dynamically. As I stated before, everyone can see everyone in the network explorer, and shares can be accessed. The weird thing is that everyone can ping the router but they cannot ping each others IPs. The status on the netbooks says that there is no Internet Connectivity. Another thing I tried was manually setting the DNS servers on the netbooks to the DNS servers that the host computer has. The funny thing is when I ping an outside domain such as google.com the IP address resolves, however I get no responses from the pings. When I tried plugging the host into the WAN port I could ping the router, nor could I access the router's web access admin. Another thing I tried was turning off the firewall on the netbooks and the firewall off on the host computer for the LAN connection, and they still could not ping each other. Also I thought I should be able to start a remote desktop connection but I couldn't do that either, I also checked to make sure that computers would in fact accept a request for remote desktop connections.

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• Squid Proxy: url_regex acl is not working?

  - by bharathi

  I am using squid proxy 3.1 in ubuntu machine. I want to allow only urls matching our pattern through our proxy server. I configured acl like below. Acl for dstdomain is working fine. If i access any url besides .zmedia.com , I got proxy connection refused. But the url_regex is not working. What i am trying here is. Allow only request from ".zmedia.com" domain and the request url should be in "/blog" context. # # Recommended minimum configuration: # acl manager proto cache_object acl localhost src 127.0.0.1/32 ::1 acl to_localhost dst 127.0.0.0/8 ::1 acl urlwhitelist url_regex -i ^http(s)://([a-zA-Z]+).zmedia.com/blog/.*$ acl allowdomain dstdomain .zmedia.com acl Safe_ports port 80 8080 8500 7272 # Example rule allowing access from your local networks. # Adapt to list your (internal) IP networks from where browsing # should be allowed acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl SSL_ports port 7272 # multiling http acl CONNECT method CONNECT # # Recommended minimum Access Permission configuration: # # Only allow cachemgr access from localhost http_access allow manager localhost http_access deny manager http_access deny !allowdomain http_access allow urlwhitelist http_access allow CONNECT SSL_ports http_access deny CONNECT !SSL_ports # Deny requests to certain unsafe ports http_access deny !Safe_ports # Deny CONNECT to other than secure SSL ports http_access deny CONNECT !SSL_ports # We strongly recommend the following be uncommented to protect innocent # web applications running on the proxy server who think the only # one who can access services on "localhost" is a local user #http_access deny to_localhost # # INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS # # Example rule allowing access from your local networks. # Adapt localnet in the ACL section to list your (internal) IP networks # from where browsing should be allowed http_access allow localhost # And finally deny all other access to this proxy http_access deny all # Squid normally listens to port 3128 http_port 3128 # We recommend you to use at least the following line. hierarchy_stoplist cgi-bin ? # Uncomment and adjust the following to add a disk cache directory. #cache_dir ufs /var/spool/squid 100 16 256 # Leave coredumps in the first cache dir coredump_dir /var/spool/squid append_domain .zmedia.com # Add any of your own refresh_pattern entries above these. refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 Please correct me , If i did anything wrong?

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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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• VPN Connection causes DNS to use wrong DNS server

  - by Bryan

  I have a Windows 7 PC on our company network (which is a member of our Active Directory). Everything works fine until I open a VPN connection to a customer's site. When I do connect, I lose network access to shares on the network, including directories such as 'Application Data' that we have a folder redirection policy for. As you can imagine, this makes working on the PC very difficult, as desktop shortcuts stop working, software stops working properly due to having 'Application Data' pulled from under it. Our network is routed (10.58.5.0/24), with other local subnets existing within the scope of 10.58.0.0/16. The remote network is on 192.168.0.0/24. I've tracked the issue down to being DNS related. As soon as I open the VPN tunnel, all my DNS traffic goes via the remote network, which explains the loss of local resources, but my question is, how can I force local DNS queries to go to our local DNS servers rather than our customers? The output of ipconfig /all when not connected to the VPN is below: Windows IP Configuration Host Name . . . . . . . . . . . . : 7k5xy4j Primary Dns Suffix . . . . . . . : mydomain.local Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : mydomain.local Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : mydomain.local Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet Physical Address. . . . . . . . . : F0-4D-A2-DB-3B-CA DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::9457:c5e0:6f10:b298%10(Preferred) IPv4 Address. . . . . . . . . . . : 10.58.5.89(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : 31 January 2012 15:55:47 Lease Expires . . . . . . . . . . : 10 February 2012 10:11:30 Default Gateway . . . . . . . . . : 10.58.5.1 DHCP Server . . . . . . . . . . . : 10.58.3.32 DHCPv6 IAID . . . . . . . . . . . : 250629538 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-AC-76-2D-F0-4D-A2-DB-3B-CA DNS Servers . . . . . . . . . . . : 10.58.3.32 10.58.3.33 NetBIOS over Tcpip. . . . . . . . : Enabled This is the output of the same command with the VPN tunnel connected: Windows IP Configuration Host Name . . . . . . . . . . . . : 7k5xy4j Primary Dns Suffix . . . . . . . : mydomain.local Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : mydomain.local PPP adapter Customer Domain: Connection-specific DNS Suffix . : customerdomain.com Description . . . . . . . . . . . : CustomerDomain Physical Address. . . . . . . . . : DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.0.85(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.255 Default Gateway . . . . . . . . . : DNS Servers . . . . . . . . . . . : 192.168.0.16 192.168.0.17 Primary WINS Server . . . . . . . : 192.168.0.17 NetBIOS over Tcpip. . . . . . . . : Disabled Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : mydomain.local Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet Physical Address. . . . . . . . . : F0-4D-A2-DB-3B-CA DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::9457:c5e0:6f10:b298%10(Preferred) IPv4 Address. . . . . . . . . . . : 10.58.5.89(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : 31 January 2012 15:55:47 Lease Expires . . . . . . . . . . : 10 February 2012 10:11:30 Default Gateway . . . . . . . . . : 10.58.5.1 DHCP Server . . . . . . . . . . . : 10.58.3.32 DHCPv6 IAID . . . . . . . . . . . : 250629538 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-AC-76-2D-F0-4D-A2-DB-3B-CA DNS Servers . . . . . . . . . . . : 10.58.3.32 10.58.3.33 NetBIOS over Tcpip. . . . . . . . : Enabled Routing table Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 10.58.5.1 10.58.5.89 20 10.58.5.0 255.255.255.0 On-link 10.58.5.89 276 10.58.5.89 255.255.255.255 On-link 10.58.5.89 276 10.58.5.255 255.255.255.255 On-link 10.58.5.89 276 91.194.153.42 255.255.255.255 10.58.5.1 10.58.5.89 21 127.0.0.0 255.0.0.0 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 127.0.0.1 306 192.168.0.0 255.255.255.0 192.168.0.95 192.168.0.85 21 192.168.0.85 255.255.255.255 On-link 192.168.0.85 276 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 10.58.5.89 276 224.0.0.0 240.0.0.0 On-link 192.168.0.85 276 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 10.58.5.89 276 255.255.255.255 255.255.255.255 On-link 192.168.0.85 276 The binding order for the interfaces is as follows: I've not configured the VPN tunnel to use the default gateway at the remote end, and network comms to nodes on both networks are fine. (i.e. I can ping any node on our network or the remote network). I've modified the PPTP connection properties to use the DNS servers 10.58.3.32 followed by 192.168.0.16, yet the query still goes to 192.168.0.16. Edit: The local resources that disappear are hosted on domain DFS roots, which might (or might not) be relevant.

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• 403 Forbidden Error when trying to view localhost on Apache

  - by misbehavens

  I think my Apache must be all screwed up. I don't know if it ever worked. I just upgraded to Snow Leopard, and the first step on this tutorial is to start apache and check that it's working by opening http://localhost. It starts fine but when I go to localhost I get a 403 forbidden error. I don't know where to start figuring out how to fix it, so I wonder if a fresh install of Apache would do the trick. What do you think? Update: I found some error logs in /private/var/log/apache2/. Found this in one of the logs. Not sure what it means: [Tue Nov 10 17:53:08 2009] [notice] caught SIGTERM, shutting down [Tue Nov 10 21:49:17 2009] [warn] Init: Session Cache is not configured [hint: SSLSessionCache] Warning: DocumentRoot [/usr/docs/dummy-host.example.com] does not exist Warning: DocumentRoot [/usr/docs/dummy-host2.example.com] does not exist httpd: Could not reliably determine the server's fully qualified domain name, using Andrews-Mac-Pro.local for ServerName mod_bonjour: Skipping user 'andrew' - cannot read index file '/Users/andrew/Sites/index.html'. [Tue Nov 10 21:49:19 2009] [notice] Digest: generating secret for digest authentication ... [Tue Nov 10 21:49:19 2009] [notice] Digest: done [Tue Nov 10 21:49:19 2009] [notice] Apache/2.2.11 (Unix) mod_ssl/2.2.11 OpenSSL/0.9.8k DAV/2 PHP/5.3.0 configured -- resuming normal operations Update: I also found something in the dummy-host.example.com-error_log file. I didn't set these dummy-host things by the way. Is this the default configuration? [Tue Nov 10 21:59:57 2009] [error] [client ::1] client denied by server configuration: /usr/docs Update: Woohoo! I found the file that had the virtual host definitions. It was in /etc/apache2/extra/httpd-vhosts.conf. It had those two dummy virtual host settings in there. I added a localhost virtual host. Not sure if this is necessary, but since it wasn't working before, decided to do it anyway. After removing the old virtual hosts, adding my new localhost virtual host, and restarting apache, it seems to work. So I guess whenever I want to add a virtual host, I only need to add them to this file? Or is there a hosts file somewhere, like there is on Linux? Update: Yes, there is an /etc/hosts file that need to be changed to. Add the virtual host name to that file.

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• Amusing or Sad? Network Solutions

  - by dbasnett

  When I got sick my email ended up in every drug sellers email list. Some days I get over 200 emails selling everything from Viagra to Xanax. Either they don't know what my condition is or they are telling me you are a goner, might as well chill-ax and have a good time. In order to cut down on the mail being downloaded I thought I would add all of the Junk email senders from Outlook to my Network Solution mail server. Much to my amazement I could not find that import Spammers button, so I submitted a tech support request. Here is the response: Thank you for contacting Network Solutions Customer Service Department. We are committed to creating the best Customer experience possible. One of the first ways we can demonstrate our commitment to this goal is to quickly and efficiently handle your recent request. We apologize for any inconvenience this might have caused you. With regard to your concern, please be advised that we cannot import blocked senders in to you e-mail servers. An alternative option is for you to create a Custom Filter that filters unwanted e-mails. To create a Custom Filter: Open a Web browser (e.g., Netscape, Microsoft Internet Explorer, etc.). Type mail.[domain name].[ext] in the address line. Login to your Network Solutions email account. Click on the Configuration left menu tab. Click on the Custom Filter link. Type the rule name. blah, blah, blah Basically add them one at a time. "We are committed to creating the best Customer experience possible." No you are not. You are trying to squeeze every nickle you can out of me. "With regard to your concern, please be advised that we cannot import blocked senders in to you e-mail servers." Maybe I should apply for a job to write those ten complicated lines of code... Maybe I should question my choice of vendors, because if they truly "cannot" then they are to stupid to have my business. It is both amusing and sad. I'll be posting this in every forum I am a member of.

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• Active Directory Partition Error

  - by BLAKE

  Right now my active directory is failing a dcdiag test. I can find no info online about this error. When I run dcdiag /test:crossrefvalidation, I get the output: .... Doing primary tests Testing server: Default-First-Site-Name\ad01 Running partition tests on : ForestDnsZones Starting test: CrossRefValidation ......................... ForestDnsZones passed test CrossRefValidation Running partition tests on : DomainDnsZones Starting test: CrossRefValidation ......................... DomainDnsZones passed test CrossRefValidation Running partition tests on : Schema Starting test: CrossRefValidation ......................... Schema passed test CrossRefValidation Running partition tests on : Configuration Starting test: CrossRefValidation ......................... Configuration passed test CrossRefValidation Running partition tests on : mydomain Starting test: CrossRefValidation ......................... mydomain passed test CrossRefValidation Running partition tests on : t Starting test: CrossRefValidation This cross-ref has a non-standard dNSRoot attribute. Cross-ref DN: CN=a3a24d3a-4782-460b-9148-86ac2d86b9ae,CN=Partitions,CN=Configuration, DC=mydomain,DC=com nCName attribute (Partition name): DC=t Bad dNSRoot attribute: dc01.mydomain.com Check with your network administrator to make sure this dNSRoot attribute is correct, and if not please change the attribute to the value below. dNSRoot should be: t It appears this partition (DC=t) failed to get completely created. This cross-ref (CN=a3a24d3a-4782-460b-9148-86ac2d86b9ae,CN=Partitions,CN=Configurat ion,DC=mydomain,DC=com) is dead and should be removed from the Active Directory. ......................... t failed test CrossRefValidation .... I used LDP from the windows support tools. I searched for the dnsRoot attribute in "cn=partitions,cn=configuration,dc=mydomain,dc=com", with the filter "(&(objectcategory=crossref)(systemFlags:1.2.840.113556.1.4.803:=5))" I got the result: ***Searching... ldap_search_s(ld, "cn=partitions,CN=Configuration,DC=mydomain,DC=com", 1, "(& (objectcategory=crossref)(systemFlags:1.2.840.113556.1.4.803:=5))", attrList, 0, &msg) Result <0>: (null) Matched DNs: Getting 3 entries: >> Dn: CN=65502be3-fc90-442a-83d8-4b3b91e82439,CN=Partitions,CN=Configuration,DC=mydomain,DC=com 1> dnsRoot: ForestDnsZones.mydomain.com; >> Dn: CN=a3a24d3a-4782-460b-9148-86ac2d86b9ae,CN=Partitions,CN=Configuration,DC=mydomain,DC=com 1> dnsRoot: ad01.mydomain.com; >> Dn: CN=f0ef5771-6225-4984-acd9-c08f582eb4e2,CN=Partitions,CN=Configuration,DC=mydomain,DC=com 1> dnsRoot: DomainDnsZones.mydomain.com; It looks like the bad partition has the name of my first domain controller 'ad01.mydomain.com'. I have googled for a while and have not been able to find any help or documentation about application partitions in Active Directory. Does anyone have any advice on how to cleanup this partition (or what the partition is for)? Does anyone know the repercussions for deleting this partition?

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• Resolving CloudFlare DNS related mail delivery problems

  - by Andy Castles

  I recently started using CloudFlare and am having a few teething problems. Our domain is netlanguages.com and while we have a lot of sub-domains listen, we are currently only trialling a few of the servers through the CloudFlare CDN (for example, www.netlanguages.com is enabled for CDN, netlanguages.com is not). The actual CDN service seems to be reliable, but the problem that we are having is with DNS, and specifically with mail delivery. The background is that we have contact forms on our web site which use PHP mail() to send the details to end-users' email addresses, with the "from" address of the messages being [email protected] which is a valid address on our mail server. Most of the mails are arriving correctly, but a few specific people are not receiving them. The webserver uses qmail to deliver the messages, and the qmail log files show us some of the errors that the receiving mail servers return when they reject the mail delivery attempt. Two examples: Connected to 94.100.176.20 but sender was rejected./Remote host said: 421 DNS problem (interdominios.netlanguages.com). Try again later Connected to 213.186.33.29 but sender was rejected./Remote host said: 451 DNS temporary failure (#4.3.0) From what I can tell, the receiving SMTP server is doing a DNS lookup of some description on either the host of the "from" email address (netlanguages.com) or the server name given in the EHLO command of the SMTP conversation (in the first example above, interdominios.netlanguages.com), both of which should resolve to non-CloudFlare IP addresses. I've read that the CloudFlare DNS service is very reliable and fast but both of the problems above seem to point to a problem with remote servers unable to do DNS lookups. I should also point out that we changed our DNS to CloudFlare on 6th Feb, and since then started experiencing these mail delivery problems. On 22nd Feb we moved our DNS away from CloudFlare to see if the issues were related to CloudFlare and after a few hours delivery began to work. Then on 26th Feb I moved the DNS back to CloudFlare again and delivery problems started again. The issues definitely seems to be related to DNS, but I don't know if it's a configuration issue, or something else. Finally, I should say that our two DNS MX records point to non-CDN A record IP addresses, interdominios.netlanguages.com (the web and qmail server) also points to a non-CDN A record IP address. Does anyone know what the problem could be here? Any light you can shed on this will be most appreciated. Many thanks, Andy

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• Small Business Server services will not start, and remote desktop and UAC are broken

  - by Stephen Jennings

  Yesterday I began setting up a server with Windows Small Business Server 2008. All I am configuring it for right now is to be a domain controller and Exchange server. I completed the initial setup of SBS then started looking through different connection options (allowing VPN versus using a TS Gateway). After I rebooted one time, I started having three not-obviously-related issues: First, I could no longer remote desktop into the computer. I ran TCPView and saw that it was no longer listening on port 3389. I checked everything in Terminal Service Configuration but everything shows the computer ought to be allowing connections. Also, when I tried to use anything that required user account control elevation, the UAC dialog never popped up and the program that was waiting just froze. If I try to run "regedit" from the Run box, for example, it never appears. When I run in safe mode which does not run with UAC, I was able to access everything. I didn't want to deal with it, so I turned off UAC and rebooted. Finally, in the Windows SBS Console, there are status indicators for Security, Updates, Backup, and Other Alerts. The first three get stuck saying "Querying". Looking in the computer alerts, I have events showing the following services stopped: Background Intelligent Transfer Service KtmRm for Distributed Transaction Coordinator Distributed Transaction Coordinator Microsoft Exchange Information Store Microsoft Exchange System Attendant Microsoft Exchange Transport Windows Remote Management Update Services Windows Update I figured I must have configured something wrong accidentally and I couldn't find anything using Google explaining what might be the case, so I just decided to format the hard drive and reinstall SBS from scratch. I did this and everything was working last night, but I just turned the machine back on and it is doing the same thing again! On my second install, I did not configure anything except the following (all from SBS Console): Connect to the Internet (set IP and router address) Turn off customer feedback. Set up internet address. Decline to use a Smart Host for email. Added one standard user account. Since this happened again and I was very careful the second time not to configure anything outside of the SBS Console, I feel like there's something else going on. Right now the machine is on an isolated network that does have internet access. My desktop is the only other machine plugged into this network. Any and all help is appreciated (before I tear my hair out!)

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• IE and Google Chrome timeout on an IIS6 hosted SSL page that Firefox handles well.

  - by Thomas

  Ok, here's the scenario: Up until a few weeks ago, none of us noticed anything wrong with the corporate website. People were using it without complaint. Then, a client complained that a specific page on the site was timing out for him, and only when he committed a POST action on a form filled with data. I checked it out, and it timed out for me, too. But, it only timed out in Google Chrome and IE, not in Firefox. Additionally, the same page, on the same server, but served from a different domain name (one not under the protection of SSL, either) does not time out under any browser. To clarify: https://www.mysite.com/changes.php times out on POST, but the same with http works fine. That distinction (SSL vs. Non-SSL) seems to be important, as nothing else has changed. Our certificate is valid, and Firefox detects no errors thrown by the page. I've looked at the Request and Response headers from the page, and they all follow the correct formats. Then, after wandering through the site, I noticed a few other things. Both IE and Chrome will frequently time out on any page that is PHP-based. They never time out on static images or html files. I've looked at the site from a variety of different servers, my home and work workstations, and my netbook. Because of that, I've discounted a viral infection, as I highly doubt a virus is going to hit every one of the machines to which I have access in exactly the same manner. My setup is: Server: Win2k3, II6, PHP 5.2.9-1. Clients: IE7, IE8, Chrome (regular and dev channel): Frequent timeouts on PHP pages. Firefox 2, Firefox 3: No timeouts. Firebug shows no errors or even lengthy periods serving the pages. I've spent 2 days searching for any tech knowledge that I can find, and my search parameters are all too general. Everyone has problems loading SSL pages in IE and Chrome for a wide variety of reasons. The infrequent nature of the timeouts and the fact that there are no errors being reported anywhere is starting to drive me insane. Does anyone have any insight on a problem like this?

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• Filtering Security Logs by User and Logon Type

  - by Trido

  I have been asked to find out when a user has logged on to the system in the last week. Now the audit logs in Windows should contain all the info I need. I think if I search for Event ID 4624 (Logon Success) with a specific AD user and Logon Type 2 (Interactive Logon) that it should give me the information I need, but for the life of my I cannot figure out how to actually filter the Event Log to get this information. Is it possible inside of the Event Viewer or do you need to use an external tool to parse it to this level? I found http://nerdsknowbest.blogspot.com.au/2013/03/filter-security-event-logs-by-user-in.html which seemed to be part of what I needed. I modified it slightly to only give me the last 7 days worth. Below is the XML I tried. <QueryList> <Query Id="0" Path="Security"> <Select Path="Security">*[System[(EventID=4624) and TimeCreated[timediff(@SystemTime) &lt;= 604800000]]]</Select> <Select Path="Security">*[EventData[Data[@Name='Logon Type']='2']]</Select> <Select Path="Security">*[EventData[Data[@Name='subjectUsername']='Domain\Username']]</Select> </Query> </QueryList> It only gave me the last 7 days, but the rest of it did not work. Can anyone assist me with this? EDIT Thanks to the suggestions of Lucky Luke I have been making progress. The below is my current query, although as I will explain it isn't returning any results. <QueryList> <Query Id="0" Path="Security"> <Select Path="Security"> *[System[(EventID='4624')] and System[TimeCreated[timediff(@SystemTime) &lt;= 604800000]] and EventData[Data[@Name='TargetUserName']='john.doe'] and EventData[Data[@Name='LogonType']='2'] ] </Select> </Query> </QueryList> As I mentioned, it wasn't returning any results so I have been messing with it a bit. I can get it to produce the results correctly until I add in the LogonType line. After that, it returns no results. Any idea why this might be? EDIT 2 I updated the LogonType line to the following: EventData[Data[@Name='LogonType'] and (Data='2' or Data='7')] This should capture Workstation Logons as well as Workstation Unlocks, but I still get nothing. I then modify it to search for other Logon Types like 3, or 8 which it finds plenty of. This leads me to believe that the query works correctly, but for some reason there are no entries in the Event Logs with Logon Type equalling 2 and this makes no sense to me. Is it possible to turn this off?

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• Ubuntu box static routing problem

  - by Rafael

  Hello, I'm trying to configure a ubuntu server to be a router. This is my interface configuration (eth2 connects to my WAN, eth0 to my LAN): auto eth2 iface eth2 inet static address 192.168.0.249 netmask 255.255.255.0 gateway 192.168.0.1 broadcast 192.168.0.255 auto eth0 iface eth0 inet static address 192.168.100.1 netmask 255.255.255.0 This is the router information: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2 0.0.0.0 192.168.0.1 0.0.0.0 UG 100 0 0 eth2 And this is dhcp configuration: subnet 192.168.100.0 netmask 255.255.255.0 { range 192.168.100.101 192.168.100.254; option domain-name-servers 201.70.86.133; option routers 192.168.100.1; authoritative; } I'm then connecting a mac os x by cable on eth0. This is en0 interface configuration: en0: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500 ether 00:26:bb:5d:82:b0 inet6 fe80::226:bbff:fe5d:82b0%en0 prefixlen 64 scopeid 0x4 inet 192.168.100.101 netmask 0xffffff00 broadcast 192.168.100.255 media: autoselect (100baseTX <full-duplex>) status: active And this is the routing table: Internet: Destination Gateway Flags Refs Use Netif Expire default 192.168.100.1 UGSc 139 32 en0 10.37.129/24 link#8 UC 2 0 vnic1 10.37.129.2 0:1c:42:0:0:9 UHLWI 0 839 lo0 10.37.129.255 ff:ff:ff:ff:ff:ff UHLWbI 0 4 vnic1 10.211.55/24 link#7 UC 2 0 vnic0 10.211.55.2 0:1c:42:0:0:8 UHLWI 0 840 lo0 10.211.55.255 ff:ff:ff:ff:ff:ff UHLWbI 0 4 vnic0 127 127.0.0.1 UCS 0 0 lo0 127.0.0.1 127.0.0.1 UH 3 507924 lo0 169.254 link#4 UCS 0 0 en0 172.16.42/24 link#10 UC 2 0 vmnet8 172.16.42.1 0:50:56:c0:0:8 UHLWI 0 839 lo0 172.16.42.255 link#10 UHLWbI 1 24 vmnet8 192.168.100 link#4 UC 2 0 en0 192.168.100.1 0:e0:7c:7e:f:99 UHLWI 139 0 en0 777 192.168.100.101 127.0.0.1 UHS 0 0 lo0 192.168.100.255 ff:ff:ff:ff:ff:ff UHLWbI 0 4 en0 192.168.116 link#9 UC 2 0 vmnet1 192.168.116.1 0:50:56:c0:0:1 UHLWI 0 839 lo0 192.168.116.255 ff:ff:ff:ff:ff:ff UHLWbI 0 4 vmnet1 When I ping 192.168.100.1, it works. When I ping 192.168.0.249, it also works. However, when I try to ping 192.168.0.1 it does not. Does anyone has any way to solve this? Is there a way to debug it? Thanks,

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