Red Hat Certified System Administrator

In the next few weeks, I intend to publish my own training courses entirely in Polish related to RHCSA. Yes, free of charge, because these are the basics of any Linux distribution in principle and in my opinion it is ridiculously simple. The exam requires you to understand and remember the commands by heart, so it’s not that simple anymore, because the commands come in as time goes by when you tap them every day with your finger.

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fail2ban – installation and configuration

Note, the following tutorial is a part of my engineering work entitled “Hardening of a Linux-based network server” under the direction of Ph. D. Kordian Smolinski in the Department of Theoretical Physics WFiIS UŁ defended in June 2019.

To install Fail2Ban on CentOS 7.6, you will first need to install the EPEL (Extra Packages for Enterprise Linux) repository. EPEL contains additional packages for all versions of CentOS, one of these additional packages is Fail2Ban.

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