← All Kali Issues
Fail2ban
Not banning
S Security
Medium
🔴 Error Message
Fail2ban not blocking brute force attempts
📖 What This Means
Filter or jail not matching log format.
🔧 Step-by-Step Fix
- Check: sudo fail2ban-client status sshd
- Test filter: fail2ban-regex /var/log/auth.log /etc/fail2ban/filter.d/sshd.conf
- Check jail.local is enabled