Ci-dessous, les différences entre deux révisions de la page.
| Prochaine révision | Révision précédente | ||
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informatique:linux:fail2ban [2013/02/11 07:45] benoit créée |
informatique:linux:fail2ban [2018/09/06 19:10] (Version actuelle) |
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| Ligne 1: | Ligne 1: | ||
| ===== Fail2ban ===== | ===== Fail2ban ===== | ||
| - | Exemple de configuration pour apache : | + | Exemple d'installation et de configuration sous Debian avec apache : |
| + | Installation : | ||
| + | apt-get install fail2ban | ||
| + | |||
| + | Editer le fichier : | ||
| + | vim /etc/fail2ban/jail.conf | ||
| + | |||
| + | Exemple de configuration : | ||
| + | [apache] | ||
| + | | ||
| + | enabled = true | ||
| + | port = http,https | ||
| + | filter = apache-auth | ||
| + | logpath = /var/log/apache*/*error*.log | ||
| + | action = iptables-allports[name=apache, protocol=all] | ||
| + | mail[name=$HOSTNAME, dest="abuse@domain.com", sender=$HOSTNAME] | ||
| + | maxretry = 5 | ||
| + | bantime = 600 | ||
| + | |||
| + | |||
| + | Si besoin modifier le fichier filter pour optimiser l'analyse des logs : | ||
| + | vim /etc/fail2ban/filter.d/apache-auth.conf | ||
| + | |||
| + | Exemple : | ||
| + | # Fail2Ban configuration file | ||
| + | # | ||
| + | # Author: Cyril Jaquier | ||
| + | # | ||
| + | # $Revision: 728 $ | ||
| + | # | ||
| + | | ||
| + | [Definition] | ||
| + | | ||
| + | # Option: failregex | ||
| + | # Notes.: regex to match the password failure messages in the logfile. The | ||
| + | # host must be matched by a group named "host". The tag "<HOST>" can | ||
| + | # be used for standard IP/hostname matching and is only an alias for | ||
| + | # (?:::f{4,6}:)?(?P<host>[\w\-.^_]+) | ||
| + | # Values: TEXT | ||
| + | # | ||
| + | failregex = [[[client <HOST>[]] user .* authentication failure | ||
| + | [[]client <HOST>[]] user .* not found | ||
| + | [[]client <HOST>[]] user .* password mismatch | ||
| + | [[[client <HOST>[]] Digest: user .* authentication failure | ||
| + | [[]client <HOST>[]] Digest: user .* not found | ||
| + | [[]client <HOST>[]] Digest: user .* password mismatch | ||
| + | | ||
| + | # Option: ignoreregex | ||
| + | # Notes.: regex to ignore. If this regex matches, the line is ignored. | ||
| + | # Values: TEXT | ||
| + | # | ||
| + | ignoreregex = | ||
| + | |||
| + | Redémarrer fail2ban : | ||
| + | |||
| + | /etc/init.d/fail2ban restart | ||