Enable image caching in apache for better Google Page Speed results

High page speed and short page load times of your website are essential for good search engine rankings today. In this FAQ, I will show you how to enable caching of graphic and CSS files in apache on Ubuntu and Debian. The first step is to enable the expires module in apache: a2enmod headers expires ... Read more

How to Backup OpenVZ Containers with vzdump on CentOS 6

OpenVZ is a Linux based Kernel virtualization technology developed by SWSoft for its commercial product Virtuozzo. The modified Linux Kernel and the system utilities are released under an OpenSource license. Vzdump is a shell based backup program for OpenVZ virtual machines. It is made for containers that use the traditional "simfs" filesystem, it can not be used for containers with "ploop" filesystem.

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How to set a VNC password

The Linux VNC server provides a command to set a new password. The command is "vncpasswd", the password is stored in encrypted form into the file ~/.vnc/passwd of the home directory of te user. Run: vncpasswd to set a new password for the currently logged in user. The command will then prompt for the new ... Read more