SELinux - Getting Started on really understanding it?

Solution 1:

Dan Walsh is indeed the man when it comes to SElinux.

I'd start here with the presentation on what SElinux is trying to tell you.

http://people.fedoraproject.org/~dwalsh/SELinux/Presentations/selinux_four_things.pdf

For policy generation:

http://people.fedoraproject.org/~dwalsh/SELinux/Presentations/PolicyGeneration.odp

http://danwalsh.livejournal.com/35127.html#cutid1

Fedora is where a lot of SElinux stuff debuts, and you'd do well to hang out on the selinux mailing list there:

http://admin.fedoraproject.org/mailman/listinfo/selinux

IRC is also not a bad idea - on freednode.net #selinux and #fedora-selinux you can ask questions there interactiely.

From a raw documentation perspective - the Fedora 13 SElinux guide is probably a good place to start for the current state of SElinux.

http://docs.fedoraproject.org/en-US/Fedora/13/html/Security-Enhanced_Linux/index.html

Solution 2:

You should definitely check out the SELinux Wiki