grsecurity is a collection of security patches for the Linux kernel. It enhances the security functionality of the kernel including adding a Role-Based Access Control system. It also adds a number of protections against common kernel-based attacks, enhances auditing capabilities on the system and adds considerable security to the chroot function that allows you to run certain processes in a "chroot jail."
I recommend reading the extensive Features section of the grsecurity web page at http://www.grsecurity.net/features.php. There is also a Wiki at http://www.grsecurity.net/wiki/index.php.
Dig deeper on Linux system security best practices
Related Q&A from James Turnbull
A user wants to implement OSSEC on a Windows server because he has no server side Linux operating system.continue reading
Solaris 10 Trusted Extensions and SELinux are best suited to different system requirements and administrator skill sets. Our security expert explains...continue reading
Configuring spam filters Spamassassin and dspam together in the email server Postfix is easy with the resources listed by our security expert.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.