On Fri, 12 May 2000, Jack Barnett wrote about, Re: which server is bound to which
port:
> > how do you find it.??
Any program running as aprocess will show up in the output of ps.
Or any program running via inetd will be in /etc/inetd.conf.
>
> I was learn socket programming in perl and created port scan script to learn
> how to connect, etc and it showed up, I telented there and it made a
> connection, but when I typed something it disconnected me. It didn't print
> anything out
Now i would like a copy of that script if at all possable, perl is not a
friend of mine but i am trying to get to know her, a sample script of this
type will help me a lot.
>
> >who starts it,??
>
> Not sure, I don't even know what program is bound to that port, that is what
> I am trying to firgure out
>
> > that can be seen with 'ps ax'.
>
> I looked though that and they all looked like processes that should of be
> running, I even started killing a lot of them just to make sure, and still
> couldn't find it.
>
> > Are you seeing the port in some sort of trace program.??
>
> Yea
>
> > port 1616 could
> > well be used by the inet server.
>
> I shutdown the inetd and it was still accepting connections to that port
>
> > Is port 1616 defined in your /etc/services, ??
>
> no
>
> > do you run any spesific
> > programs via inetd, check in /etc/inetd.conf.??
>
> no
What i think it is, is quite possably a program transmitting on port 1616
to another port on another server, so possably a senario would be;
A telnet session you start could send packets on port 1616 to -> 23 on
another machine.
A sample transmit packet could look like.
IP: len 52 44.137.28.27->44.137.28.48 ihl 20 ttl 64 DF prot TCP
TCP: 1082->telnet Seq x6d6932b7 Ack x6f967c42 ACK Wnd 1888
Note 1082 goes to 23
So 1082 could well be 1616 on your system.
This is a paritial packet from a trace of 2 ampr.org stn's via an SCC
interface, however the underlying protocol is the same.
--
Regards Richard
[EMAIL PROTECTED]
http://people.zeelandnet.nl/pa3gcu/
-
To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
the body of a message to [EMAIL PROTECTED]
Please read the FAQ at http://www.linux-learn.org/faqs
