How to Implement a Security Policy on CentOS

Security should always be one of the foremost thoughts at all stages of the design, development and deployment of your Linux server. In order to implement a solid and efficient security policy on a machine requires a good handle on the fundamentals of Linux as well as some of the applications, protocols and languages that are used. The security of your operating system is a massive subject and there are literally tomes on this; however, I’ve done what I can to bring you some of the most relevant things to remember.