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HowtoForge: Preventing SSH Dictionary Attacks With DenyHosts

Feb 22, 2006, 05:30 (3 Talkback[s])
(Other stories by Falko Timme)

[ Thanks to Falko Timme for this link. ]

"In this HowTo I will show how to install and configure DenyHosts. DenyHosts is a tool that observes login attempts to SSH, and if it finds failed login attempts again and again from the same IP address, DenyHosts blocks further login attempts from that IP address by putting it into /etc/hosts.deny. DenyHosts can be run by cron or as a daemon. In this tutorial I will run DenyHosts as a daemon..."

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Related Story:
BindView advisory: sshd remote root (bug in deattack.c)(Feb 09, 2001)