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Five Security Tips for New Linux Admins

Jun 22, 2015, 14:00 (0 Talkback[s])
(Other stories by Don Parris)

Learn Nmap and related tools. Learn some other port and vulnerability scanners. Use them. Also learn your distribution's commands and utilities for managing ports. Shut down any open, unused ports. One company I know has only two, at most three, ports open on the external network. That makes them a very hard target indeed. The bad guys may find and attack those ports. Then again, they may just go looking for easier targets.

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