Red Hat RHEL: Enhancing Security Through SELinux Controls

IT managers that want to secure their Linux environments and keep things running smoothly have a very powerful tool at their disposal: Security Enhanced Linux, or SELinux, an implementation of mandatory access controls originally developed by the National Security Agency (NSA) and integrated in to most mainstream Linux distributions.

"[SELinux] stops theft; it stops spam relays, it stops worms from attacking your site," said Dan Walsh, principal software engineer at Red Hat and a regular contributor to the SELinux project. As such, IT managers should leave it on at all times in every facet of their data centers.

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