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--- linux:fail2ban [2021/05/16 03:21] – created gsys
+++ linux:fail2ban [2024/11/14 00:04] (current) – [Installation] gsys
@@ Line 1: / Line 1: @@
 ====== fail2ban ======
 ===== Installation =====
 <code>
 sudo apt update
 sudo apt install fail2ban
-sudo cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local
+sudo systemctl enable fail2ban
+sudo touch /etc/fail2ban/jail.local
+</code>
+Debian 11
+<code>
+sudo systemctl start fail2ban.service
+sudo systemctl status fail2ban.service
+</code>
+Debian 12
+<code>
+sudo apt install python3-systemd
+</code>
+''sudo nano /etc/fail2ban/jail.conf''
+<code>
+[DEFAULT]
+sshd_backend = systemd
+</code>
+<code>
+sudo systemctl start fail2ban.service
+sudo systemctl status fail2ban.service
+</code>
+===== Steuerung =====
+<code>
+sudo systemctl status fail2ban.service
 sudo systemctl restart fail2ban.service
-</code
+sudo fail2ban-client status sshd
-=====  =====
+sudo fail2ban-client set <jail-name> unbanip <ip>
-=====  =====
+sudo fail2ban-client set <jail-name> banip <ip>
+</code>