topic Re: socket verification commands in Operating System - HP-UX

socket verification commands

Shivkumar — Wed, 17 Aug 2005 17:43:56 GMT

Is there a command to check how many sockets are being opened by a particular process ?

Can we kill or close open sockets ? If yes; what is the command for this ?

Thanks,
Shiv

Re: socket verification commands

Mel Burslan — Wed, 17 Aug 2005 18:05:38 GMT

Command you are looking for is

lsof -U

if you do not have lsof, you can get it from

http://gatekeep.cs.utah.edu/hppd/hpux/Sysadmin/lsof-4.75/

and last but not the least, I do not know any other way to close a socket other than killing the process who opened it if we are talking to do it from the unix command line. Otherwise, sockets are accesible for open and close for the applications. They close the socket by a close() system call as far as my limited system programming knowledge goes. It is not an easy process by any means.

Re: socket verification commands

Devesh Pant_1 — Wed, 17 Aug 2005 20:24:15 GMT

Shiv,
if you don't have lsof installed you can do a netstat -an
but definitely lsof makes it very easy

thanks
DP

Re: socket verification commands

Sandman! — Wed, 17 Aug 2005 20:36:19 GMT

Yes you can close open sockets. You need to use the ndd command for that...man ndd

best of luck!

Re: socket verification commands

Sandman! — Wed, 17 Aug 2005 20:40:28 GMT

Maybe this thread will be useful :)

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=928114

Re: socket verification commands

Mahesh Kumar Malik — Thu, 18 Aug 2005 01:41:03 GMT

Hi Shiv

lsof is contributary utility and can be used to monitor open sockets. You may download its binary from following link:

http://hpux.connect.org.uk/hppd/hpux/Sysadmin/lsof-4.75/

Regards
Mahesh