Kill established tcp connection on Linux

How can you kill an established TCP connection on Linux?

1

2 Answers

There's a tool called tcpkill. You can usually get it by installing dsniff.

[root@fresh ~]# tcpkill -i eth0 tcp port 22
tcpkill: listening on eth0 [tcp port 22]

3

tcpkill is the command to research, let's you kill connections to / from a specified host, network or port.

For example, to prevent any connections to the host use this command:

/usr/sbin/tcpkill −9 host 

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