Linux: How to kill a TCP connection using netstat?

Linux: How to kill a TCP connection using netstat?


Syntax:

tcpkill -i eth0 { expression }
Examples:

(a) Kill all outgoing ftp (port 21) connection:

tcpkill -i eth0 port 21

(b) Kill all all packets arriving at or departing from host 192.168.1.2 (host12.nixcraft.com)

tcpkill host 192.168.1.2

OR

tcpkill host host12.nixcraft.com

(c) To kill all IP packets between 192.168.1.2 and any host except 192.168.1.111, type the following:

tcpkill ip host 192.168.1.2 and not 192.168.1.111