Исчерпывающее(без преув.) руководство по САБЖу: http://www.ecst.csuchico.edu/~dranch/LINUX/TrinityOS/cHTML/TrinityOS-c.html TrinityOS: A Guide to Configuring Your Linux Server for Performance, Security, and Manageability
TrinityOS and its associated archive scripts guide the Linux user in a step-by-step fashion using a common example throughout to configure over 50+ Internet services. The main focus of TrinityOS is to do this in a secure fashion while keeping both performance and manageability in mind. The documents also guide the user in other advanced topics such as aquiring their own Internet domain(s), moving DNS servers, confirming if you've been hacked, fighting SPAM email, and fixing various Linux file system, partition, LILO, and data recovery problems.
