I was wondering, as I'm exploring FC4, with the install of FC4 I disabled SELinux.
When I get a bit around in FC4, I plan on activating this though. I've read on this and different previous topics and the faqs that:
To disable use the editor or run system-config-securitylevel...
---> is this the same for activiting it?
SELINUX=enforcing. You can either reboot or run setenforce 1 to turn enforcing on in real time.
By activating it, you should apply this to all running applications/processes...
---> so this could cause problems with the already installed packages?