Howto use more than 4 GB RAM on Debian etch

Nowadays, many servers are running with 2-4 gigabytes of RAM, and their owners are discovering a problem: When they run 32-bit debian Linux distribution, their extra RAM is not being used. Fortunately, correcting the problem is only a matter of installing or building a kernel with a few specific parameters enabled or disabled.
Continue reading…

 

Running Vhosts With Apache2 mpm-itk On Debian

apache2-mpm-itk (just mpm-itk for short) is an MPM (Multi-Processing Module) for the Apache 2 web server. mpm-itk allows you to run each of your vhost under a separate uid and gid — in short, the scripts and configuration files for one vhost no longer have to be readable for all the other vhosts.
Continue reading…