SELinux Project Wiki
This is the official Security Enhanced Linux (SELinux) project page. Here you will find resources for users, administrators, vendors and developers.
For an account, send email to jmorris AT namei.org.
What is SELinux
SELinux is a security enhancement to Linux which allows users and administrators more control over access control.
Access can be constrained on such variables as which users and applications can access which resources. These resources may take the form of files. Standard Linux access controls, such as file modes (-rwxr-xr-x) are modifiable by the user and the applications which the user runs. Conversely, SELinux access controls are determined by a policy loaded on the system which may not be changed by careless users or misbehaving applications.
For more information about SELinux see the FAQ and other resources listed here.