inside the mind of a linux admin

enable/disable webmail access for a particular user

Yes, you can disable one or more of the Webmail packages on specific accounts or domains: SSH into the server as root and edit the file: /var/cpanel/users/username Now, if you want to disable all webmails then add below lines: skiphorde=1 skipsqmail=1 skipneomail=1 Restart cPanel using /etc/init.d/cpanel restart Share on FacebookTweet

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force a horde update and reset databases

Sometimes you may need to update Horde forcefully due to a database or MySQL version upgrade/downgrade. Additionally, if Horde is not “saving” user preferences or remembering last logins, you can force upgrade Horde by executing following command: /usr/local/cpanel/bin/update-horde –force Please note that it will drop the existing Horde Database and will create a new database. […]

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can’t find user in WHM

cPanel doesn’t know user, or you can’t find the user in WHM * There aren’t account neither in “List Accounts” neither in “Show Reseller Accounts” * Check on /var/cpanel/users/username. Make sure the user is owned by the correct account. It should also have a “DNSX=domain.com” line. * Execute the following commands: # /scripts/updateuserdomains # /scripts/rebuildcpusers […]

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simple foreach to kill multiple PIDs

Sometimes you’ll find a bunch of stale or malicious processes that need to be killed. When a killall won’t grab them, use this simple for loop to kill -9 each of them individually from the ps output. Simply replace the name= variable with the PID’s name or a string from the process list. # name="perl" […]

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enable passive FTP in pure-ftpd

For users that are behind a firewall it might be required that you enable passive ftp in the customer’s ftp server and client. While enabling passive ftp in your ftp client is simple, doing so in your ftp server configuration files might be a bit tricky if you don’t know what you are doing. This […]

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cPanel error: language cache is out of date

During an upcp, or visible on cPanel WHM you may encounter an error that says: Warning: language cache is out of date. It is being rebuilt now Can’t locate Class/Std.pm in @INC (@INC contains: /usr/local/cpanel /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi […] Compilation failed in require at (eval 1) line 3. …propagated at /usr/lib/perl5/5.8.8/base.pm line 85. BEGIN failed–compilation aborted at […]

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Basic Security Auditing

/var/cpanel/accounting check /tmp for nobody check /etc/passwd /var/log/secure rkhunter # find / -perm +4000 > ~/suids      # searches for all suid files and outputs to ~/suids file Share on FacebookTweet

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How to resize /tmp/tmpDSK to 1Gb

Sizes does matter! # umount -l /tmp # dd if=/dev/zero of=/usr/tmpDSK bs=1024 count=1024000 # mkfs.ext3 /usr/tmpDSK # mount -o loop,rw,noexec,nosuid /usr/tmpDSK /tmp Share on FacebookTweet

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Troubleshooting: cPanel internal PHP

Symptom: Internal cPanel/WHM pages are returning blank pages or index.php for download.

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my color PS1 bash prompt

export PS1=”[\[\e[34;1m\]\u@\[\e[30;1m\]\h\[\e[39;1m\]: \w\[\e[0m\]]\$ “ Share on FacebookTweet

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