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Advanced SSH security tips

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Perhaps the first thing you should do is run sshd on a non-standard port...
By default, SSH listens for connections on port 22. Attackers use port scanner software to see whether hosts are running an SSH service. It's wise to change the SSH port to a number higher than 1024 because most port scanners (including nmap) by default don't scan high ports.
 read more | score:7495 | -Ray, April 1, 2007
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