How to release a port

[Platinum]

In our system, a port is always occupied by a dead process, the process is a non-hp application. How to release the port?

[Tim D Fulford]

ndd /dev/tcp/tcp_discon

I use the above to disconnect FIN_WAIT_2's the socket is a hex number, from memory you can use something like printf "x\n", to get the hex worked out.

Also see James & Stefan's answers

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x8f1acb60e503d6118ff40090279cd0f9,00.html

[Rajeev Shukla]

See the application has to be seen more carefully as why it doesn't release the port. Though you can release the port by ndd but its not the appropriate way to do every time.

Cheers
Rajeev

[Srinivas Sreekumar]

You can find out the process associated with the port using a utility called lsof.

you can get it from ftp://vic.cc.purdue.edu/pub/tools/unix/lsof/

[KapilRaj]

use lsof to find out the parent process who own's the port. then terminate them (if theyare not important)

kaps