You’ve seen before how I got targeted by thousands of brute force attempts and how I mitigated the attacks earlier in this post; however, I wanted to do something better and more efficient. A filter at the firewall to block all these attempts from even establishing a basic TCP connection with the HTTP server.
The Problem
One major problem is that these attempts were not coming from a single IP address. Attackers will use TOR to hide themselves and to have different IPs to over-come the first obstacles that is: blocking the attacker’s source IP address.
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