One of the most exciting new features in RHEL v.4 is the implementation of Security-Enhanced Linux (SELinux). In this tip, we'll look at how you can use it to beef up system security.

SELinux is an open source project sponsored by the National Security Agency, to help implement mandatory access control. It is a subsystem which provides a much more secure framework to Linux, then can be achieved from the operating systems level. It implements mandatory access controls that give you finer granularity in terms of security measures and is made up of both kernel and user-space components.

By Ken Milberg at SearchEnterpriseLinux.

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