Interesting opensource projects to contribute to as a sysadmin? [closed]

I know that as a sysadmin you can contribute to opensource projects such as a Debian and Fedora. Joining their infrastructure groups and help with administration. I'm just wondering if there are any other interesting opensource projects/communities. To which sysadmin with a free time can contribute and sharpen his skills.

Solution 1:

While a good question, the options are endless. I tend to try to contribute to things I use and find useful, while focusing on projects that are especially in need of assistance. Inprotect is a team that could definitely use some additional assistance.

• CentOS - Linux distribution. (Debian, Slackware, and other distributions are acceptable as well.)
• Inprotect - Front end for Nessus, a vulnerability scanner.
• SNORT - A network IDS.
• Request Tracker - A very customizable ticket system.

Solution 2:

Monitoring products : OpenNMS, Nagios, MRTG, Orca, etc.