Security Enhanced Linux has move into the mainstream of operating system architecture in recent years. For those who don't understand the technology, many articles exist. SELinux provides mandatory access control to a wider audience. It helps eliminate O-day attacks. The agenda for the 2006 SELinux Symposium has just been announced and some project leaders of Linux distributions may way want to attended.

Existing distributions such as Fedora are including SELinux in the default build, and ports are underway to bring SELinux functionality to BSD and Darwin. Management has already stressed the importance of SELinux in many organizations. So, security minded systems administrators will find SELinux an important area to gain proficiency.