Debian Linux version 6.0.2 has been released. This update mainly adds corrections for security problems to the stable release, along with a few adjustments to serious problems. The kernel image used by the installer has been updated to incorporate a number of important and security-related fixes together with support for additional hardware.
One of the most common mistake is typing sl instead of ls command. I actually set an alias i.e. alias sl=ls; but then you may miss out the steam train with whistle.
You can now enjoy mysteries of the sea from the safety of your own terminal using ASCIIQuarium. It is an aquarium/sea animation in ASCII art created using perl.
Generally, all Linux distributions needs a scheduled reboot once to stay up to date with important kernel security updates. RHN (or other distro vendors) provides Linux kernel security updates. You can apply kernel updates using yum command or apt-get command line options. After each upgrade you need to reboot the server. Ksplice service allows you to skip reboot step and apply hotfixes to kernel without rebooting the server. In this post, I will cover a quick installation of Ksplice for RHEL 5.x and try to find out if service is worth every penny.
These are full-featured cross-platform softwares, free as in beer and speech. Vivek Gite picks his best open source software of 2009.