TCP/IP Connection Cutting On Linux Firewalls

Chris Lowth writes "Network security administrators sometimes need to be able to abort TCP/IP connections routed over their firewalls on demand. This would allow them to terminate connections such as SSH tunnels or VPNs left in place by employees over night, abort hacker attacks when they are detected, stop high bandwidth consuming downloads - etc. There are many potential applications. This article describes how a Linux IPTables based firewall/router can be used to send the right combination of TCP/IP packets to both ends of a connection to cause them to abort the conversation. It describes the steps required to perform this task, and introduces a new open-source utility called 'cutter' that automates the process."

Comments

Your statement was blindingly obvious

[Moderation abuser]

to anyone but the most retarded. So obvious in fact that actually making the statment out loud just makes you look like a complete idiot.

Only a real moron would have moderated it insightful.

Re:Would be handy

[Anonymous Coward]

I hate a lot of things about you, but I hate your dumb sig the most. Your sig six = you sux = Microsoft Rulz!!!!!