Demons Seeking Dæmons—A Practical Approach to Hardening Your OpenSSH Configuration

A few simple configuration tweaks could save you sleepless nights over whether or not someone might crack your SSH server.
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ssh work

Steve Jim1's picture

The new work about ssh server is to be access very carefully to get fixed.

ssh -p <alternate port>

Keith Daniels's picture
Doing ssh -p will allow a second dæmon to run and provide you with a secondary secure connection Shouldn't that be: sshd -p ?

All the new OSs and windowing systems are oriented towards content consumption instead of content production.

--Steve Daniels 2013

Denyhosts

Anonymous's picture

"DenyHosts is a python program that automatically blocks ssh attacks by adding entries to /etc/hosts.deny. DenyHosts will also inform Linux administrators about offending hosts, attacked users and suspicious logins." Very nifty when your machine is getting hammered with brute force attacks. You can find it here.