Security configuration guidance.

If you are serious about security, there is one place where you need to go: it’s the aqueduct project website.
There, you will find all the security configuration guidances to strengthen your RHEL servers.
Even better, as it takes a lot of efforts to improve the security level of an already built server, Major Hayden’s website provides a ready-to-use CentOS 6 kickstart file compliant with the CIS (Center for Internet Security) guidance. This way, with very limited changes in this file (partition sizes, physical or virtualized drives), you will get a server that you can rely on.