Re: Checking Ports? (fwd)
On Fri, 5 Jun 1998, Marcus Johnson wrote:
> ---------- Forwarded message ----------
> Date: Fri, 5 Jun 1998 12:50:21 -0700 (PDT)
> From: Marcus Johnson <marcus@hbe.org>
> To: John Hasler <john@dhh.gt.org>
> Subject: Re: Checking Ports?
>
> Sorry for my brevity and thank you for your answer. I meant ports as in
> IP ports. I tried to start a server-type program but it exits and tells
> me that port is already in use. This seems very odd to me because I
> should be the only one using it. I suspect its still running another copy
> of my server. How can I find out and if it is another instance of my
> server how can I kill it?
I run a very simple joystick server that writes its position to a port, say,
50005, so that (a) multiple clients can connect to the stick (b) I can run
a fake server on machines without a stick and continue to test programs that
need to read a stick.
When I kill the server, I find I often can't restart it on that port, but
can on, say, 50006. I'm guessing that some resource stays around until it's
killed off, usually after less than a minute.
I intend making my server pick the next free port, and likewise the clients
will have to play chase the server. Meanwhile I don't worry.
Cheers,
--
Email: d.wright@open.ac.uk Tel: +44 1908 653 739 Fax: +44 1908 655 151
Snail: David Wright, Earth Science Dept., Milton Keynes, England, MK7 6AA
Disclaimer: These addresses are only for reaching me, and do not signify
official stationery. Views expressed here are either my own or plagiarised.
--
To UNSUBSCRIBE, email to debian-user-request@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
Reply to: