I recently did a similar look at ports on our NT servers, and thru research,
the 1024+ portsspecifically, it seems the developers pretty much just pick a
number. I work at an ASP with a lot of custom built web apps, and especially
if they stay in house or client/server (not public) they are seen as "open"
ports to use for dcom, isapi, or whatever connection tool they are running.
""Ken"" <[EMAIL PROTECTED]> wrote in message
91pmdf$3v6$[EMAIL PROTECTED]">news:91pmdf$3v6$[EMAIL PROTECTED]...
> I did not get any takers on the associate list, so I'll try the main list.
>
> I am a little confused about port numbers. I understand what they are for,
> but I do not quite understand how to track down why a host would be
> listening to a particular port and how to find out who asked for the port
to
> be defined and what the port is being used for. For example netstat -a
from
> my machine shows in part the following
>
> Proto Local Address State
> TCP name:1059 LISTENING
> TCP name:1060 LISTENING
> TCP name:1877 LISTENING
>
> of course there are many others. I understand that to track these down I
go
> to ftp://ftp.isi.edu/in-notes/iana/assignments/ and download the file
named
> port-numbers. I then look for each port shown above and this tells me the
> name of the port and who registered it. For example, port 1059 is named
> nimreg. It was registered by Robert Gordon at austin.ibm.com. Short of
> asking Robert, how do I find out what nimreg is and why a Windows 98 SE
host
> would be listening on such a port.
>
> Also I have seen people on the list ask what port Napster uses for
example.
> People respond back with a number, yet I see no listing for Napster on the
> list I downloaded.
>
> What am I missing here?
>
>
>
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