SSH Blacklisting
by Mostafa on Nov.29, 2007, under How To ..., Linux, Software
After getting around 1500 failed ssh login attempts a day for a while on a server I manage, I decided to look into tools that automatically blacklist offending IPs.
Sshblack fits the bill perfectly. A HOWTO (including an init-script) for REDHAT-like systems is available from the OSS Watch Wiki.
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May 28th, 2010 on 1:58 pm
You might also be interested in using http://www.sshbl.org/, the SSH blacklist. Maybe it helps.