In a past article, I explained how to auto-block hosts with a WatchGuard Firebox. Yesterday alone my logs showed over 100 IP addresses auto-blocked in one day on a Firebox used for testing purposes. The list included over 1000 blocked IP addresses. I also noticed the Firebox shows a limited number of blocked hosts so the total number of blocked hosts may be longer than what the … [Read more...]
Using Firewall Policies to Auto-Block Rogue Hosts on External Networks
Automatically preventing all traffic from hosts that attempt to connect to blocked ports can help prevent further malicious actions from those IP addresses as explained in Auto-Blocking Suspicious Hosts Found in Traffic Logs. After posting that article, one WatchGuard customer sent me a note about using the auto-block feature to help prevent DDoS attacks. By reducing the … [Read more...]