sandip's blog

I have a huge external usb drive set to be auto-mounted during backup processes and did not want to run fsck on every mount. With the below setting it would completely turn off the auto fsck check.

However, I would highly suggest atleast doing a regular 6 months check if not doing manual fscks.

On running daily lvm snapshot backups via vzdump on OpenVZ servers, I noticed the below Kernel errors in logwatch reports.

This would show up on busy servers only, probably caused due to lvm snapshot running out of space.

I edited "/usr/bin/vzdump" and increased the size from 500m to 1000m which seems to have resolved the issue for now.

Very often development servers only have self-signed certificate for ssl connection. I've recently had to create a script that would checkout from a https svn repository that would fail with "Server certificate verification failed: issuer is not trusted..." . Below is a workaround used to temporarily trust the certificate.

If you've got a lot of zip files and need to test it, here's a one liner that can be used to quickly validate the archives:

Here's a way to compare two files that have common lines in both files:

Note: files need to be sorted first prior to comparing.

PHPList comes with FCKeditor as the gui default editor. However, by default it is setup so that the spellcheck is only available to IE users. To enable for other browsers such as Firefox, follow the below directions:

1. Edit admin/fckphplist.php:
   
2. Replace all instances of:
   
   FCKConfig.SpellChecker      = 'ieSpell' ;

   with:

   FCKConfig.SpellChecker      = 'SpellerPages' ;

3. Edit admin/.htaccess and add "spellchecker.php" to the list of files to allow access to.
   
4. If this is a linux box, then make sure aspell is installed. Edit "admin/FCKeditor/editor/dialog/fck_spellerpages/spellerpages/server-scripts/spellchecker.php" and update the aspell program path:
   $aspell_prog    = '/usr/bin/aspell';

That should do it.

To backup partition table:

To restore the partition table:

To clone partition table:

If this file doesn't exist:

It's because the kernel doesn't have AUDIT enabled. So you get a bunch of errors in "/var/log/secure" with "set_loginuid failed opening loginuid".

Recompile kernel with audit support:

If recompiling of kernel is not an option then:

Comment the below lines from all pam.d files.

Find files via:

I was seeing loss in network connectivity when an OpenVZ container is stopped and noticed that the bridge mac address was taking the mac address of an existing containers virtual network interface instead of the physical interface.

The solution was to set the bridge mac address to the physical interface:

Here is what my "/etc/sysconfig/vz-scripts/vps.umount" looks like which is used to remove routes to container with veth-bridge from bridge.