Crackblock is a monitoring tool that blocks brute-force attempts for password cracking by observing ssh login failures on /var/log/secure.
Installation is straightforward thanks to the RPM package that works on any RPM-based system. You'll need to have a few dependencies in place before getting started, including iptables, tail, PERL, and PERL's syslog features. In most cases, these should already be installed and ready to go right out of the box.
With crackblock in place, you'll be able to rest assured that your system is being actively protected from cybercriminals attempting to gain unauthorized access. The software provides a valuable extra layer of security that every sysadmin can benefit from, and it's so easy to set up that you'll wonder why you didn't do it sooner. Try it out today and see for yourself just how effective crackblock can be at keeping your system safe and secure.
Version 0.1-1: N/A