Fail2ban scans log files (e.g. /var/log/apache/error_log) and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc. Generally Fail2Ban is then used to update firewall rules to reject the IP addresses for a specified amount of time...

Fail2ban is the most popular Linux alternative to RdpGuard.
Fail2ban is the most popular Open Source & free alternative to RdpGuard.
- Fail2ban is Free and Open Source
- Fail2ban is Lightweight and Privacy focused






























There is the chance to block an IP forever. It's completely free.