socket verification commands

[Shivkumar]

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

[Mel Burslan · Accepted solution]

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.

[Devesh Pant_1]

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


thanks
DP

[Sandman!]

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

best of luck!

[Sandman!]

Maybe this thread will be useful :)

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

[Mahesh Kumar Malik]

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