Projects

fail2ban

Fail2ban scans log files like /var/log/pwdfail or /var/log/apache/error_log and bans IP that makes too many password failures. It updates firewall rules to reject the IP address.

DenyHosts

DenyHosts is a script intended to be run by Linux system administrators to help thwart SSH server attacks (also known as dictionary based attacks and brute force attacks). If you've ever looked at your ssh log (/var/log/secure on Redhat, /var/log/auth.log on Mandrake, etc...) you may be ... [More] alarmed to see how many hackers attempted to gain access to your server. Hopefully, none of them were successful (but then again, how would you know?). Wouldn't it be better to automatically prevent that attacker from continuing to gain entry into your system? DenyHosts attempts to address the above... and more. [Less]

sshguard

sshguard protects hosts from brute force attacks. It supports IPv6, whitelists and log authentication, interfaces with all the major firewalling systems, has a remarkably clever log analyzer, and is independent, fast and lightweight as it's written in C

blockhosts

Automatic blocking of remote IP hosts attacking ssh and other services