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• Postfix mail forwarder

  - by Andrew

  Hello, I just bought a dedicated server and I'm trying to install a webserver on it. The server is Ubuntu 10.04. I installed ftp, nginx, php, mysql, bind and now I have to install mail server. For the mail server I'm using Postfix, because it's recomended on ubuntu. I installed Postfix with apt-get install postfix but mail() function from php wasn't working. After a little debug I found the way to solve this : I created an empty file /etc/postfix/main.cf and it worked good. I do have a mx record like this mail 5M IN A xxx.xxx.xxx.xxx example.com. 5M IN MX 1 mail.example.com. After that I wanted to forward all e-mails to my GMail address. So I googled for it and I found in the official docs Virtual Domain Host Forwarding I added these lines in main.cf virtual_alias_domains = example.com virtual_alias_maps = hash:/etc/postfix/virtual I created map file and I placed this line in it @example.com [email protected] I run in terminal postmap /etc/postfix/virtual postfix reload The result: I can send e-mail from php with mail() function, but when I send an email to [email protected] that e-mail isn't forwarded to my Gmail. How to solve this? -Andrew I also tried this but not working http://rackerhacker.com/2006/12/26/postfix-virtual-mailboxes-forwarding-externally/ It works now! But I don't know what the problem was. I just installed "Mail Server" from Tasksel and after that it worked fine. Can anyone tell me what Tasksel installed or that it changed ?

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• Tomcat 7 on Ubuntu 12.04 with JRE 7 not starting

  - by Andreas Krueger

  I am running a virtual server in the web on Ubuntu 12.04 LTS / 32 Bit. After a clean install of JRE 7 and Tomcat 7, following the instructions on http://www.sysadminslife.com, I don't get Tomcat 7 up and running. > java -version java version "1.7.0_09" Java(TM) SE Runtime Environment (build 1.7.0_09-b05) Java HotSpot(TM) Client VM (build 23.5-b02, mixed mode) > /etc/init.d/tomcat start Starting Tomcat Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-7-oracle Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar > telnet localhost 8080 Trying ::1... Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection refused netstat sometimes shows a Java process, most of the times not. If it does, nothing works either. Does anyone have a solution or encountered similar situations? Here are the contents of catalina.out: 16.11.2012 18:36:39 org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/lib/jvm/java-6-oracle/lib/i386/client:/usr/lib/jvm/java-6-oracle/lib/i386:/usr/lib/jvm/java-6-oracle/../lib/i386:/usr/java/packages/lib/i386:/lib:/usr/lib 16.11.2012 18:36:40 org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["http-bio-8080"] 16.11.2012 18:36:40 org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["ajp-bio-8009"] 16.11.2012 18:36:40 org.apache.catalina.startup.Catalina load INFO: Initialization processed in 1509 ms 16.11.2012 18:36:40 org.apache.catalina.core.StandardService startInternal INFO: Starting service Catalina 16.11.2012 18:36:40 org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/7.0.29 16.11.2012 18:36:40 org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /usr/local/tomcat/webapps/manager Here come the results of ps -ef, iptables --list and netstat -plut: > ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 Nov16 ? 00:00:00 init root 2 1 0 Nov16 ? 00:00:00 [kthreadd/206616] root 3 2 0 Nov16 ? 00:00:00 [khelper/2066167] root 4 2 0 Nov16 ? 00:00:00 [rpciod/2066167/] root 5 2 0 Nov16 ? 00:00:00 [rpciod/2066167/] root 6 2 0 Nov16 ? 00:00:00 [rpciod/2066167/] root 7 2 0 Nov16 ? 00:00:00 [rpciod/2066167/] root 8 2 0 Nov16 ? 00:00:00 [nfsiod/2066167] root 119 1 0 Nov16 ? 00:00:00 upstart-udev-bridge --daemon root 125 1 0 Nov16 ? 00:00:00 /sbin/udevd --daemon root 157 125 0 Nov16 ? 00:00:00 /sbin/udevd --daemon root 158 125 0 Nov16 ? 00:00:00 /sbin/udevd --daemon root 205 1 0 Nov16 ? 00:00:00 upstart-socket-bridge --daemon root 276 1 0 Nov16 ? 00:00:00 /usr/sbin/sshd -D root 335 1 0 Nov16 ? 00:00:00 /usr/sbin/xinetd -dontfork -pidfile /var/run/xinetd.pid -stayalive -inetd root 348 1 0 Nov16 ? 00:00:00 cron syslog 368 1 0 Nov16 ? 00:00:00 /sbin/syslogd -u syslog root 472 1 0 Nov16 ? 00:00:00 /usr/lib/postfix/master postfix 482 472 0 Nov16 ? 00:00:00 qmgr -l -t fifo -u root 520 1 0 Nov16 ? 00:00:04 /usr/sbin/apache2 -k start www-data 523 520 0 Nov16 ? 00:00:00 /usr/sbin/apache2 -k start www-data 525 520 0 Nov16 ? 00:00:00 /usr/sbin/apache2 -k start www-data 526 520 0 Nov16 ? 00:00:00 /usr/sbin/apache2 -k start tomcat 1074 1 0 Nov16 ? 00:01:08 /usr/lib/jvm/java-6-oracle/bin/java -Djava.util.logging.config.file=/usr/ postfix 1351 472 0 Nov16 ? 00:00:00 tlsmgr -l -t unix -u -c postfix 3413 472 0 17:00 ? 00:00:00 pickup -l -t fifo -u -c root 3457 276 0 17:31 ? 00:00:00 sshd: root@pts/0 root 3459 3457 0 17:31 pts/0 00:00:00 -bash root 3470 3459 0 17:31 pts/0 00:00:00 ps -ef > iptables --list Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp dpt:http-alt ACCEPT tcp -- anywhere anywhere tcp dpt:8005 ACCEPT tcp -- anywhere anywhere tcp dpt:http-alt Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination > netstat -plut Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 *:smtp *:* LISTEN 472/master tcp 0 0 *:3213 *:* LISTEN 276/sshd tcp6 0 0 [::]:smtp [::]:* LISTEN 472/master tcp6 0 0 [::]:8009 [::]:* LISTEN 1074/java tcp6 0 0 [::]:3213 [::]:* LISTEN 276/sshd tcp6 0 0 [::]:http-alt [::]:* LISTEN 1074/java tcp6 0 0 [::]:http [::]:* LISTEN 520/apache2

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• Getting PHP to work with apache to run .php files through browser

  - by Kevin Duke

  I have VPS running Debian 5.0 (I think) and I would like to get it to run PHP files. I was told it needed to be configured with Apache. I tried entering the command apt-get install apache2 php5 libapache2-mod-php5. But there was no change. Console output: http://pastebin.com/sVMWq6mA This is everything in my /etc/apache2/mods-enabled: http://img35.imageshack.us/img35/6474/modsb.jpg My webserver can be accessed here: http://206.217.223.136/test/ In my test.php file I have the code : <?php phpinfo(); ?> but instead of displaying the page, it tries to download it. How can I fix this?

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• Netdom Join Failed To Complete Successfully

  - by BubbleMonster

  I have two servers on VMWare. One is a standard install of Server 2008 r2 and the other is Server 2008 core. Server 2008's IP is: 192.168.186.135 and computer name is: SERVER01. This is a domain controller and has DNS installed along with Active Directory. The domain is called: contoso.com Server 2008 Core's IP is: 192.168.186.137 and computer name is: SERVER02 They can both ping each other, but when I try running the following: netdom join SERVER02 /domain:contoso.com Results: The specified domain either does not exist or could not be contacted. The command failed to complete successfully. I'm thinking it might be a DNS issue? I'm new to servers and I am teaching myself. Any help would be appreciated. Thanks in advance.

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• Providing a public Web-Hosting service on MS Windows - advice and resources

  - by crgnz

  Are there any resources offering advice on how to setup a microsoft based web-hosting service? I currently offer LAMP hosting with cPanel, but there is some demand for IIS & SQL Server. As far as I can tell MS Windows Web Server 2008 R2 edition allows unlimited IIS connections. And a per-processor license for MS SQL Server Web Edition 2008 also permits unlimited connections. Where I am falling down is that I can't figure out how to get "unlimited" Active Directory users. I can't use 2008R2 Web Server edition for AD, so I will need the 2008R2 standard edition, I think. Does Microsoft have a provision for using AD in an ISP scenario? I am looking at using the cPanel Enkompas system to manage the Windows software, and Enkompas requires AD for user authentication. Any advice would be greatly appreciated!

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• Outlook refuses to connect to Exchange

  - by wfaulk

  Outlook 2007 under Windows XP connecting to Exchange 2003 SP2: when started, it flips back and forth between "Connecting to Exchange Server" and "Disconnected" three or four times, then gives up and stays disconnected. I tried deleting the ost file (which was nearly 2GB), turning Cached mode on and off, recreating the account inside the Mail control panel, changing the account to use HTTP, and probably some other things. None of it seemed to make any difference, until … After fiddling with it for a while, I got this absurd error message dialog at startup, and it exits after I click OK: Cannot start Microsoft Office Outlook. Cannot open the Outlook window. The set of folders cannot be opened. Microsoft Exchange is not available. Either there are network problems or the Exchange server is down for maintenance. (I'm not sure if I can even trust that message. It's so long, it just feels like a random offset into Outlook's stack of error messages.) Either way, the Exchange server is available to everyone else, and is available via OWA from that computer. I ran Process Explorer against Outlook and it showed 5 or so ESTABLISHED connections to our Exchange server, plus listening on two UDP ports, and two CLOSE_WAIT connections to localhost. If I managed to look at Outlook's IP connections while it was doing its Connecting/Disconnected dance, it had a huge number of connections open to the Exchange server. It more than filled ProcExp's dialog box; I'm guessing at least 20, probably more. The only other odd thing is that our network admin at some point added a wildcard DNS record to the domain name that we use for email, and now Outlook will sometimes (always?) start by complaining about autodiscover.example.com's SSL certificate. There is a web server there, but it doesn't have any sort of email autodiscover anything on it. It doesn't make any difference if I click "OK" or "Cancel" (or whatever the buttons are). I also added a bogus entry for the hostname to Windows' hosts file, pointing it at 127.0.0.2, and it stopped complaining about the certificate. (The CLOSE_WAIT sockets above were from before I made this change, and went away after.) I don't think this is related, as the same problem should exist for everyone, but it might be. This is the second time this user has had this problem. The first time, I never found a solution other than reinstalling Outlook. Now that it's a pattern, I'd like to find a permanent solution, rather than assume it's a random glitch.

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• MySQL Error: 1067

  - by Vicky

  When I try t start MySQL server service it is giving an error: "Could not start the MySQL server in local computer Error 1067: The process terminated unexpectedly" I need to fix the problem without having to uninstall the MySQL server. Is there a way to do it?

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• Exchange 2010 forwarded emails by external servers being blocked

  - by MadBoy

  Our users were getting spam messages from their own accounts (same domain/login for example [email protected] to [email protected]). This is preety standard trick and I decided to block it so that anonymous users can't send emails as @company.com. This brought some problems on us like our printers not being able to send emails etc but I solved it with secondary smtp receiver on different port with ip restrictions. However it seems to affect forwarding by some e-mail servers as well: Hi. This is the qmail-send program at home.pl. I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out. : 89.14.1.26 failed after I sent the message. Remote host said: 550 5.7.1 Client does not have permissions to send as this sender --- Below this line is a copy of the message. Return-Path: Return-Path: Received: from mail.company.com [89.14.1.26] (HELO mail.company.com) by company.ho.pl [79.93.31.43] with SMTP (IdeaSmtpServer v0.70) id 488fcb01c2f069d9; Tue, 3 Jan 2012 09:46:55 +0100 Received: from EXCHANGE1.COMPANY ([fe80::d425:135f:b655:1223]) by EXCHANGE2.COMPANY ([fe80::193f:51ac:9316:cb27%14]) with mapi id 14.01.0355.002; Tue, 3 Jan 2012 09:46:55 +0100 From: =?iso-8859-2?Q?MadBoy?= So basically server forwards it without affecting email address it was send with and our servers treat it like spam. I used this command to block things: Get-ReceiveConnector "DEFAULT Exchange2" | Get-ADPermission -user "NT AUTHORITY\Anonymous Logon" | where {$_.ExtendedRights -like "ms-exch-smtp-accept-authoritative-domain-sender"} | Remove-ADPermission Is there anyway I can keep on receiveing things like forwards but be able to block things (except some dedicated antispam solution - this will be added later). Also how do I "reassing" back the permissions that was removed? EDIT to clarify: I have a domain domain.com configured as Authorative. Couple of our users are on project for differentcompany.com which is not on our servers or anywhere close. Now when they send an email from their accounts lets say [email protected] to [email protected] that special alias is configured so that any email it receives it forwards to multiple people including a group alias at our domain [email protected] and that group alias puts the email in users mailboxes. After the email is forwarded by [email protected] and it reaches our server it is denied because the forwarding done by the "external" server doesn't affect user information so for the server it seems like the [email protected] was actually sender and it treats it as spam and denies it. The server at differentcompany.com just adds itself to the header that it passed thru it and doesn't modify sender at anyway (seems like this is how forwarding works). Although I could probably allow this particular server as allowed to relay but this would seem to affect more servers/users as anyone can setup forwarding on their email back to our domain...

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• setting apache environment variable

  - by Kiran

  My hosting environment using Server version: Apache/2.2.14 (Unix) and I am modifying ./usr/local/apache/conf/httpd.conf to set environment variable and restarting the server . SetEnv XML-RPC-IPs 193.45.32.21 I did set it as a first entry in the file and restarted the server . But even restarting if I try to print it is still getting me black , Am I missing any thing ? echo "My IP address ".$_SERVER['XML-RPC-IPs']; Thanks for your help Regards Kiran

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• django fcgi - call a management command with subprocess.Popen

  - by user41855

  Hi, I'm using an app called django-chronograph. It has a code of line which works in my dev environment and does not work in production: p = subprocess.Popen(['python', get_manage_py(), 'run_job', str(self.pk)]) This line crashes in production with: unknown command run_job Whereas when I run directly from command line: manage.py run_job It works fine. Interestingly it worked once when we exchanged 'python' with 'usr/bin/python'. then we restarted the server once more and it was back to old behaviour. Thus it seems as we have a python path issue. I'm not the guy who is running the server, its my app that should run and it would be great to get some help here. Attention: I'm a total noob regarding server-administration.. server environment: NGINX with FCGI-Daemon FCGI in prefork-mode

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• Blocking IP Range in .htaccess Problem

  - by Pedro

  Hi, I'm trying to block the access of one of my webapps using IP Filter in the .htaccess, the problem is that after updating the file with: order allow,deny deny from 58.14.0.0/15 allow from all I get the folowing error: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. What is wrong? Regards, Pedro

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• setting apache environment variable

  - by Kiran

  Hi , My hosting environment using Server version: Apache/2.2.14 (Unix) and I am modifying ./usr/local/apache/conf/httpd.conf to set environment variable and restarting the server . SetEnv XML-RPC-IPs 193.45.32.21 I did set it as a first entry in the file and restarted the server . But even restarting if I try to print it is still getting me black , Am I missing any thing ? echo "My IP address ".$_SERVER['XML-RPC-IPs']; Thanks for your help Regards Kiran

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• CentOS package not available

  - by Bastien974

  I installed a CentOS 5.5 and the default php package is 5.1.6. I want to install 5.2.9, so I added /etc/yum.repo.d/CentOS-Testing.repo [c5-testing] name=CentOS-5 Testing baseurl=http://dev.centos.org/centos/$releasever/testing/$basearch/ enabled=0 gpgcheck=1 gpgkey=http://dev.centos.org/centos/RPM-GPG-KEY-CentOS-testing php-5.2.9-2.el5.centos.x86_64.rpm is available http://dev.centos.org/centos/5/testing/x86_64/RPMS/ So I tried: yum clean all, *yum search php-5.2.9-2.el5.centos.x86_64.rpm* -- Warning: No matches found for: php-5.2.9-2.el5.centos.x86_64.rpm What I am doing wrong ? Thanks for your help.

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• sshd running but no PID file

  - by dunxd

  I'm recently started using monit to monitor the status of sshd on my CentOS 5.4 server. This works fine, but every so often monit reports that sshd is no longer running. This isn't true - I am still able to login to the server via ssh, however I note the following: There is no longer any PID file at /var/run/sshd.pid - after a reboot this file exists. Once it is gone, restarting sshd via service sshd restart does not create the PID file. sudo service sshd status reports openssh-daemon is stopped - again, restarting sshd does not change this, but a reboot does. sudo service sshd stop reports failed, presumably because of the missing PID file. Any idea what is going on? Update sudo netstat -lptun gives the following output relating to port 22 tcp 0 0 :::22 :::* LISTEN 20735/sshd Killing the process with this PID as suggested by @Henry and then starting sshd via service results in service sshd status recognising the process by PID again. Would still like to understand this better. RPM verify suggested by a couple of answerers shows this: sudo rpm -vV openssh openssh-server openssh-clients | grep 'S\.5' S.5....T c /etc/pam.d/sshd S.5....T c /etc/ssh/sshd_config /etc/pam.d/sshd has the following contents: #%PAM-1.0 auth include system-auth account required pam_nologin.so account include system-auth password include system-auth session optional pam_keyinit.so force revoke session include system-auth #session required pam_loginuid.so Should that last line be commented out? Update Here's the output of @YannickGirouard 's script: $ sudo ./sshd_test Searching for the process listening on port 22... Found the following PID: 21330 Command line for PID 21330: /usr/sbin/sshd Listing process(es) relating to PID 21330: UID PID PPID C STIME TTY TIME CMD root 21330 1 0 14:04 ? 00:00:00 /usr/sbin/sshd Listing RPM information about openssh packages: Name : openssh Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:50:57 AM GMT Build Host: builder10.centos.org Group : Applications/Internet Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 745390 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH implementation of SSH protocol versions 1 and 2 ------------------------------------------------------ Name : openssh-clients Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:51:04 AM GMT Build Host: builder10.centos.org Group : Applications/Internet Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 871132 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH client applications ------------------------------------------------------ Name : openssh-server Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:51:04 AM GMT Build Host: builder10.centos.org Group : System Environment/Daemons Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 492478 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH server daemon ------------------------------------------------------ However, I've since got things working by killing the process and starting afresh, as suggested by @Henry below, so perhaps I am no longer seeing the same thing. Will try again if I am seeing the issue again after next reboot. Update - 14 March Monit alerted me that sshd had disappeared, and again I am able to ssh onto the server. So now I can run the script $ sudo ./sshd_test Searching for the process listening on port 22... Found the following PID: 2208 Command line for PID 2208: /usr/sbin/sshd Listing process(es) relating to PID 2208: UID PID PPID C STIME TTY TIME CMD root 2208 1 0 Mar13 ? 00:00:00 /usr/sbin/sshd root 1885 2208 0 21:50 ? 00:00:00 sshd: dunx [priv] Listing RPM information about openssh packages: Name : openssh Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:50:57 AM GMT Build Host: builder10.centos.org Group : Applications/Internet Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 745390 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH implementation of SSH protocol versions 1 and 2 ------------------------------------------------------ Name : openssh-clients Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:51:04 AM GMT Build Host: builder10.centos.org Group : Applications/Internet Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 871132 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH client applications ------------------------------------------------------ Name : openssh-server Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:51:04 AM GMT Build Host: builder10.centos.org Group : System Environment/Daemons Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 492478 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH server daemon ------------------------------------------------------ Again, when I look for /var/run/sshd.pid I don't find it. $ cat /var/run/sshd.pid cat: /var/run/sshd.pid: No such file or directory $ sudo netstat -anp | grep sshd tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 2208/sshd $ sudo kill 2208 $ sudo service sshd start Starting sshd: [ OK ] $ cat /var/run/sshd.pid 3794 $ sudo service sshd status openssh-daemon (pid 3794) is running... Is it possible that sshd is restarting and not creating a pidfile for some reason?

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• What does a connection timeout indicate when performing an NFS mount?

  - by DeeDee

  We have a shiny new QNAP NAS (TS-879U-RP), and I'm trying to mount it to our big ol' RHEL server in the same manner as our other two QNAP NAS devices. The IT department won't give me the root privileges to the NAS, so I can't SSH in (I know, I know). The first thing I did was to, via the QNAP web admin interface, create a network share named "Runs." I then added the IP of the RHEL server to the permissions list: On the RHEL server, I then added the following line to /etc/fstab: [IP of NAS]:/Runs /mnt/gsrnas3 nfs defaults 0 0 Aside from the IP and the specific mount directory name, this is how I mounted the other two NAS devices. I then created the gsrnas3 directory under /mnt/, and then ran `mount /mnt/gsrnas3' I got the following error: mount.nfs: Connection timed out My first thought is that it's a ports issue, but I don't have enough specific experience with this issue to know for sure. I have two other NAS devices by the same manufacturer already mounted to this RHEL server, so that leads me to believe the configuration issue is on the NAS side of things. I can ping the NAS device successfully from the RHEL server. Not being able to SSH into said NAS is a huge hassle, though. Any ideas?

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• Exchange 2007 + mailbox role - performance counters

  - by Ankh2054

  I hve two exchange server in my org. Exchange 2007 - mailbox role Exchange 2007 client access, transport role I am trying to monitor the following performance counter on my exchange 2007 server (mailbox role) MSExchange Database(Information Store)\Database Page Fault Stalls/sec But I cant find the counter anywhere. I have checked the version of exchange an its 8.3.6 I looked on the other server in case I had it mixed up, but its not here either. Can anyone shed some light ?

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• PHP-FPM issue on LEMP Stack and WordPress

  - by jw60660

  I'm very much a NGINX and Server Admin beginner. I used this tutorial to install NGINX / PHP / mySQL / WordPress: C3M Digital Tutorial In this tutorial the backend php-cgi setup is configured using fastcgi. php5-fpm was installed during this tutorial: apt-get install nginx-full php5-fpm php5 php5-mysql php5-apc php5-mysql php5-xsl php5-xmlrpc php5-sqlite php5-snmp php5-curl After reading that the NGINX configuration on the WordPress codec was more secure than most tutorials, I decided to use the codex configuration: WordPress NGINX configuration in Codex The Codex configuration uses php-fpm for backend php-cgi. When opening the browser I got a 502 Bad Gateway error. The error log was: "2012/06/10 21:18:27 [crit] 14009#0: *4 connect() to unix:/tmp/php-fpm.sock failed (2: No such file or directory) while connecting to upstream, client: 12.3.456.789, server: mywebsite.com, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/tmp/php-fpm.sock:", hos t: "mywebsite.com"" In the main NGINX configuration file supplied by the codex I noticed the line starting "server unix:" in the upstream php block which point to the empty directory: # Upstream to abstract backend connection(s) for PHP. upstream php { server unix:/tmp/php-fpm.sock; # server 127.0.0.1:9000; } I checked the folder at /tmp and it was empty. Seems I missed configuring php-fpm to play with NGINX. Can someone point me in the right direction? Much appreciated!

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• Howto configure openSuSE firewall to route local traffic to local ports

  - by Eduard Wirch

  I have openSUSE 11.3 installed. I'm using the openSUSE firewall configuration mechanism (/etc/sysconfig/SuSEfirewall2). I have a http server application running on port 8080. I want the http service to be accessible using port 80. I created a redirect rule usign: FW_REDIRECT="0/0,0/0,tcp,80,8080" This works fine for every request coming from external. But it doesn't for local requests. (example: wget http://myserver/) Is there a way how I can tell the firewall to redirect local requests addressed for 80 to port 8080? (using the SUSE firewall configuration file)

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• SYN flooding still a threat to servers?

  - by Rob

  Well recently I've been reading about different Denial of Service methods. One method that kind of stuck out was SYN flooding. I'm a member of some not-so-nice forums, and someone was selling a python script that would DoS a server using SYN packets with a spoofed IP address. However, if you sent a SYN packet to a server, with a spoofed IP address, the target server would return the SYN/ACK packet to the host that was spoofed. In which case, wouldn't the spoofed host return an RST packet, thus negating the 75 second long-wait, and ultimately failing in its attempt to DoS the server?

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• Configuration Manager sub site codes

  - by NA Slacker

  I have two sub-sites set up in configuration manager. When the SCCM agent installs on the client machines within the boundaries of those sub sites they are assigned the site code of the Primary site, not the sub site code. As a result their management server remains the main server not the sub site server. I am setting up thes sub sites on cross WAN locations to cut down on traffic. What could be preventing the clients from getting associated with the proper sub site code.

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• mod_rewrite not working?

  - by Sean Kimball

  I have a bunch of non-existent urls that need to be redirected to new ones, though they are not working... mod_rewrite does work and is enabled, I'm wondering if the redirect URL has to actually exist in order for a redirect ot work. Here is what I have: Redirect 301 /cgi-bin/commerce.cgi?display=action&emptyoverride=yes&template=Assets/XHTML/Advantage.html http://domain.com/the-bag-to-nature-advantage.html UPDATE this is the request that comes in [indexed in google!] http://domain.com//cgi-bin/commerce.cgi?display=action&emptyoverride=yes&template=Assets/XHTML/Advantage.html this is where it needs to go: http://domain.com/the-bag-to-nature-advantage.html

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• nginx: php-fastcgi running but php files not executing

  - by Daniel

  I have recently set up a nginx server with PHP running as FastCGI process. The server is running with HTML files however PHP files are downloading instead of displaying and PHP code is not processed. This is what I have in nginx.conf: server { listen 80; server_name pubserver; location ~ \.php$ { root /usr/share/nginx/html; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /usr/share/nginx/html$fastcgi_script_name; include fastcgi_params; } } The command netstat -tulpn | grep :9000 displays the following which indicates php-fastcgi is running and listening on port 9000: tcp 0 0 127.0.0.1:9000 0.0.0.0:* LISTEN 2663/php-cgi If it's if any importance my server is running on CentOS 6 and I installed nginx and PHP using the repositories from The Fedora Project.

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• Why does NX Client for Windows silently closes after connection?

  - by pavel

  Hey! I connect remotely to my Ubuntu server from Vista machine. Now I need to run a GUI application on the server (Wireshark). So I decided to use FreeNX server/client to view Ubuntu GUI on Vista I have successfully installed FreeNX on Ubuntu and NX Client on Vista. I was following this guide Unfortunately, now I found myself stuck with the following problem. At the client, the !M logo window appears, but after a few seconds that window just closes, even without showing any error message. Guys, I'm really stuck, please help! Maybe I should have installed some graphical environment on the server? These are the details from NX client, it seems there are no errors. ----------------- Info: Display running with pid '7768' and handler '0x670d24'. NXPROXY - Version 3.4.0 Copyright (C) 2001, 2007 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '2168'. Session: Starting session at 'Sat Dec 19 10:58:35 2009'. Warning: Connected to remote version 3.3.0 with local version 3.4.0. Info: Connection with remote proxy completed. Info: Using WAN link parameters 768/24/1/0. Info: Using cache parameters 4/4096KB/16384KB/16384KB. Info: Using pack method 'adaptive-9' with session 'kde'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 1/1. Info: No suitable cache file found. Info: Forwarding X11 connections to display ':0'. Info: Listening to font server connections on port '11000'. Session: Session started at 'Sat Dec 19 10:58:35 2009'. Info: Established X server connection. Info: Using shared memory parameters 0/0K. Session: Terminating session at 'Sat Dec 19 10:58:37 2009'. Session: Session terminated at 'Sat Dec 19 10:58:37 2009'. -----------

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• Not all of your nameservers are in different subnets. Single point of failure

  - by user2118559

  Using VPS hosting and dynadot (domain registrar) DNS. Checked domain name with http://www.intodns.com and get some warnings Different subnets WARNING: Not all of your nameservers are in different subnets and Different autonomous systems WARNING: Single point of failure As understand to avoid the warning must have second Ip4 address and both the addresses must point to different servers? If both Ip addresses point to the same server, it does not help? I mean each server has own Ip address. If one server down, then visitors can access website (files) on another server? Is this the reason why need more than one Ip? Tried to point website to 2 ip addresses and after some time get warning from uptimerobot Connection Timeout

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• Apache crashes every 5min

  - by Simon

  I'm relatively new to server issues, having a site of mine that I started early in the year grow beyond my capabilities of managing it. I need help. I recently moved out of my shared hosting environment onto a dedicated virtual server from Mediatemple. Each week, I run a script that fetches data from my DB, fetches data from last.fm's API and then tweets information to Twitter. My server uses Virtuozzo and when the script runs, Apache crashes every 5min. I checked and saw that the 'kmemsize' parameter reaches its cap (its 13mb). I realise my problem. The MySQL process stays open for long while Apache needs to handle lots of incoming links (about 200 000 pageviews for that day according to my previous host's AWSTATS). Yes, I'm quite unexperienced in this, and I'm clearly killing the server with too many incoming links while it has to manage the updating of the DB. So that is the precedent: I want a few answers. 1) Why did my shared hosting environment not crash apache every 5min? It ran fine, the site only slowed a lot. Clearly, it must be the virtual container and the kmemsize limit? 2) Where do I go from here? Would a physical server (not a virtual container) encounter the same problems? I sent a support request to Mediatemple as well. I need all the help I can get.

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