Improve Linux security with grsecurity

To say that grsecurity provides many enhancements is an understatement. There are more than 30 options to choose from after installation, including:

• A role-based access control (RBAC) system that automatically generates least-privilege policies
  
• Change root (chroot) hardening
  
• /tmp race prevention
  
• Extensive auditing
  
• Address space protection with PaX
  
• Additional randomness in the TCP/IP stack
  
• Restrictions on users to view only their own processes
  
• Security alerts and audits that contain the IP address of the machine that caused the event