In-Reply-To: <[EMAIL PROTECTED]>

The short answer is that just about any port list,
to include RFC 1700, will tell you what *should*
be listening on certain well-known or registered
ports.  

However, in today's day and age of configurable
trojans, netcat listeners, port monitors
(NukeNabber, etc), that is pretty much out the
window...no pun intended.  You're better off
securing your systems, and then having an incident
response policy/procedure that addresses actions
to determine things such as what's listening on a
particular port.

UDP port 137 is used by NetBIOS/SAMBA for name
status queries.  TCP port 139 is used by Windows
for file sharing, logins, etc.

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