Tip: Anatomy of "SELinux" or Security-Enhanced Linux
Linux ® has been described as one of the most secure operating systems available, but the National Security Agency (NSA) took Linux to the next level with the introduction of Security-Enhanced Linux (SELinux). SELinux takes the GNU / Linux operating system and extends it with a kernel and user space, changes to make bullet-proof. If you use a 2.6 kernel today, you might be surprised to know that you are using SELinux now! This article explores the ideas behind SELinux and how it is implemented.
The public networks like the Internet are dangerous places. Anyone who has a computer connected to the Internet (even temporarily) understands these dangers. Hackers can exploit the insecurity to access a system, to obtain unauthorized access to information, repurpose or a computer to send spam or participate in attacks on other high-profile systems ( using the SYN flood, as part of a Distributed Denial of Service attacks).
Read more at IBM.com
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