Came across a cool tool today for Linux firewall admins: cutter. Heard of it? It allows you to “cut” internet connections on a firewall. Something like:
# cutter 192.168.2.55 3400
That kills all network connections from 192.268.2.55 using port 3400. A simple tool, but something I could use several times a week. Link - via digg.
On an unrelated note, I hope to transition this feed over to the main site, under a specific article category. I recommend subscribing to the new feed now so you don't miss the switch.