Fail2ban ssh
Hydra installieren
- apt install hydra
brute Force auf den Rechner
- hydra -l xinux -P bad-passwords 10.0.10.104 ssh
sshd in fail2ban aktivieren
- sed -ie "/^\[sshd\]/aenabled = true" jail.local
fail2ban neustarten
- systemctl restart fail2ban
Status checken
- fail2ban-client status sshd
Status for the jail: sshd |- Filter | |- Currently failed: 1 | |- Total failed: 14 | `- File list: /var/log/auth.log `- Actions |- Currently banned: 1 |- Total banned: 1 `- Banned IP list: 172.31.31.1