tcpdrop8
Drop a tcp connection
Usage
tcpdrop local-addr
local-port
remote-addr
remote-port
Overview
The tcpdrop command drops the TCP connection specified by the local address local-addr, port local-port and the foreign address remote-addr, port remote-port. Addresses and ports can be specified by name or numeric value.
To simplify dropping TCP connections using the output of fstat(1) and netstat(1), tcpdrop also supports a two-argument form where the address and port are separated by a colon (‘:’) or dot (‘.’) character.
Examples
If a connection to httpd(8) is causing congestion on a network link, one can drop the TCP session in charge:
$ fstat | grep 'httpd.*internet.*<--' www httpd 21307 3* internet stream tcp \ 0xd1007ca8 192.168.5.41:80 <-- 192.168.5.1:26747
Either of the following commands will drop the connection:
# tcpdrop 192.168.5.41 80 192.168.5.1 26747 # tcpdrop 192.168.5.41:80 192.168.5.1:26747 # tcpdrop 192.168.5.41.80 192.168.5.1.26747
Releases
46 releases since OpenBSD 3.6; the text changed 6 times.