All recipes

Basics

• Fail2ban bantime, findtime & maxretry Explained (with Examples)3 min
• How to Set Up jail.local in Fail2ban (the Right Way)3 min
• How to Switch Fail2ban to nftables (banaction)3 min
• How to Test a Fail2ban Filter Before Enabling It (fail2ban-regex)3 min
• How to Unban an IP in Fail2ban (and See Who's Banned)2 min
• How to Whitelist Your IP in Fail2ban (ignoreip)2 min

SSH

• How to Protect SSH with Fail2ban (sshd jail)3 min
• Fail2ban for SSH on systemd journald (no /var/log/auth.log)3 min

Nginx

• Block Bad Bots & 404 Scanners with Fail2ban (nginx-botsearch)3 min
• Fail2ban Jail for Nginx HTTP Basic Auth (nginx-http-auth)2 min
• Rate-limit Abusers with Fail2ban + Nginx limit_req (nginx-limit-req)3 min

Apache

• Fail2ban Jails for Apache: Auth & Bad Bots3 min

Mail

• Fail2ban for Postfix & Dovecot (stop SMTP/IMAP brute force)3 min

Apps

• Fail2ban for WordPress Login & XML-RPC (custom filter)4 min

Advanced

• Fail2ban recidive: Ban Repeat Offenders for Much Longer3 min