ServerWatch: Tip of the Trade: Bastille Linux

“Every wise old system and network administrator knows that
security is a multilayer process. You have your firewalls and other
border security, perhaps some internal network segmentation, and
application and operating system security. However, locking down
the operating system is probably the most crucial link in this
chain. An excellent utility to help you probe, assess, and harden
your Linux system is Bastille Linux.

“Bastille operates in two modes: hardening, and
assessment…”

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