Fail2ban
Install
- sudo apt install fail2ban
Config
- sudo cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local
Example ssh
[sshd] enabled = true port = ssh filter = sshd logpath = /var/log/auth.log maxretry = 4
[sshd] enabled = true port = ssh filter = sshd logpath = /var/log/auth.log maxretry = 4