Glossary: Endpoint and Application Security

Fail2ban

Also written: fail2ban

A free, log-watching HIPS. When one address fails too often, for example 5 failed SSH logins in 10 minutes, it bans that address in the host firewall.

Where the book teaches it

Start here
Chapter 5: HIDS and HIPS
Chapter 12: Project: harden Kettle & Crane's shop server

Related terms

Jail (Fail2ban)Filter (Fail2ban)HIPS (host-based intrusion prevention system)