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10.4: Change the default sshd port
Authored by: JLG on Nov 20, '08 02:37:21PM

Not to disagree for the sake of disagreeing, but changing the ssh port is definitely a security measure, for the reason Josh mentions. Those ssh bots hammer port 22 on any server running ssh on the default port, to the point that they can overwhelm DirectoryServices, creating a DOS attack. If the scans are successful in guessing a password, your system is hacked. By changing the ssh port, you remove the server's exposure to these bots--so yes, it is a security measure.

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