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Protect yourself son, as mothers use to say.

posted 8 Feb 2013, 06:10 by Jan Larsson
Installed and configurerd fail2ban to protect my SSH deamon from attacks. It will check for failed password and user attempts and build  a iptable rule to block that IP for [bantime] minutes.

# sudo apt-get install fail2ban

Make som tuning in /etc/fail2ban/
fail2ban.conf - set log level
jail.conf - set bantime and maxretry

Attacks are logged in /var/log/fail2ban.log