Hydra installieren
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
Alles unbannen
- fail2ban-client unban --all