Fail2ban

Unban ip

1. Se connecter au mode interactif.

   fail2ban-client -i
   Fail2Ban v0.10.2 reads log file that contains password failure report
   and bans the corresponding IP addresses using firewall rules.
   fail2ban>
   

2. Lister les IP bannis.

   fail2ban> status sshd
   Status for the jail: sshd
   |- Filter
   |  |- Currently failed: 0
   |  |- Total failed:     324641
   |  `- File list:        /var/log/auth.log
   `- Actions
   |- Currently banned: 5
   |- Total banned:     84426
   `- Banned IP list:   xxx.xxx.xxx.xxx yyy.yyy.yyy.yyy
   

3. Unban l'ip voulu.

   fail2ban> set sshd unbanip xxx.xxx.xxx.xxx
   xxx.xxx.xxx.xxx
   

4. Vérifier que l'ip n'est plus présente.

   fail2ban> status sshd
   Status for the jail: sshd
   |- Filter
   |  |- Currently failed: 0
   |  |- Total failed:     324641
   |  `- File list:        /var/log/auth.log
   `- Actions
   |- Currently banned: 3
   |- Total banned:     84426
   `- Banned IP list:   yyy.yyy.yyy.yyy
   fail2ban>