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This how-to will explain how to setup DenyHosts on a RedHat-based (RHEL, CentOS, or Fedora) Linux server to automatically add remote IP addresses that repeatedly fail login attempts to your server’s /etc/hosts.deny file in an attempt to block SSH brute force/dictionary attacks.

How to Install DenyHosts to Block SSH Attacks on RHEL ...

This entry was posted in Linux Reference Technology and tagged /etc/denyhosts.conf /etc/hosts.deny automatically block IP block IP brute force deny DenyHosts denyhosts.conf dictionary attack failed login host hosts hosts.deny login ssh ssh attack on November 30, 2010 by Steve Jenkins (updated 3357 days ago)