Fail2ban ssh: Unterschied zwischen den Versionen
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| Zeile 1: | Zeile 1: | ||
| + | = Brute Force auf den SFTP Server vom DNS Server aus = | ||
| + | |||
=Hydra installieren (''Hacking & Security'' Seite 136)= | =Hydra installieren (''Hacking & Security'' Seite 136)= | ||
*'''apt update''' | *'''apt update''' | ||
| Zeile 6: | Zeile 8: | ||
*wget https://xinux.de/downloads/bad-passwords | *wget https://xinux.de/downloads/bad-passwords | ||
| − | = | + | =Angriff starten= |
*'''hydra -l gast -s 2222 -P bad-passwords sftp.lab1''xx''.sec sftp''' | *'''hydra -l gast -s 2222 -P bad-passwords sftp.lab1''xx''.sec sftp''' | ||
Version vom 7. August 2023, 21:17 Uhr
Brute Force auf den SFTP Server vom DNS Server aus
Hydra installieren (Hacking & Security Seite 136)
- apt update
- apt install hydra
Passwordliste laden
Angriff starten
- hydra -l gast -s 2222 -P bad-passwords sftp.lab1xx.sec sftp
sshd in fail2ban aktivieren
- vim /etc/fail2ban/jail.local
[sshd] enable = true port = 2222
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: 10.0.1''xx''.2
Alles unbannen
- fail2ban-client unban --all