Fail2ban Telegram Notifications

Sending fail2ban notifications using a Telegram bot

Installation and configuration

Add the following two lines, for example, to SSHD in the file /etc/fail2ban/jail.conf, make sure to tab the word telegram.

action = iptables[name=SSH, port=22, protocol=tcp]

telegram
Download the file telegram.conf and move it to /etc/fail2ban/action.d/
Download the file send_telegram_notif.sh move it to /etc/fail2ban/scripts/
Modify the file /etc/fail2ban/scripts/send_telegram_notif.sh and add your Token and your Chat ID:

telegramBotToken=YOUR_BOT_TOKEN

telegramChatID=YOUR_CHAT_ID
Make the file executable

chmod +x /etc/fail2ban/scripts/send_telegram_notif.sh
Restart the fail2ban service and enjoy!

systemctl restart fail2ban

/etc/fail2ban/scripts/send_telegram_notif.sh -a ( start || stop ) || { -n $NAME -b $IP || -n $NAME -u $IP }"
- -a (action)
- -n (jail name)
- -b (ban)
- -u (unban)