Re: Why wdm opens a TCP port?
"Eric G. Miller" wrote:
>
> On Fri, May 17, 2002 at 08:54:04AM +0300, Petteri Heinonen wrote:
>
> > Yes, it's not the _X_ which keeps open the port, but the _wdm_. But the
> > port indeed changed every time I restarted the wdm. I just restarted it
> > couple of times, and the port numbers were 1083, 1084, 1085, etc. Very
> > odd...
>
> It's not that odd really. What address range is reported? I'm going to
> guess it's only listening on the local loopback. Also, try telnetting
> to the address:port. Does it hang and time out? Do you get connection
> refused? It would seem WDM sets up a TCP port to communicate between a
> parent and child (more than one WDM process running?) and therefore
> doesn't really care what port is used (lets the OS decide).
>
> --
> Eric G. Miller <egm2@jps.net>
Netstat reports that foreign address is *:*, and I indeed
_can_ connect to it with telnet, altough if I send anything to
it with the telnet, the connection gets closed. Further, there
is only one wdm process running. Maybe I'll just trust my
iptables :) But anyway it would be nice to know what is the
purpose of this kind of behaviour, and how can it be turned
off.
--
Petteri Heinonen addr: Varvikonkatu 1 C 19
phone: +358 50 3363286 33820 Tampere FIN
email: heinonep@cs.tut.fi
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