Date: Thu, 1 May 1997 14:01:53 -0600 (MDT) From: Nate Williams <nate@mt.sri.com> To: Chris Cason <maillist@gateway.oaks.com.au> Cc: freebsd-security@freebsd.org Subject: Re: MS Exchange mail server and port 137 Message-ID: <199705012001.OAA29546@rocky.mt.sri.com> In-Reply-To: <199705011521.BAA21766@gateway.oaks.com.au> References: <199705011521.BAA21766@gateway.oaks.com.au>
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> I recently noticed that, a few seconds after I sent an email to a > a recipient who was using Microsoft Exchange server internet mail > connector version 4.0.994.63, my IPFW setup logged to the console > that several probes came to UDP port 137 (Netbios name service.) > > I've only recently firewalled these ports out so this may be a > common occurrance ... has anyone seen this before, or know why > they do it ? Is the ME server looking for host information > automatically ? I see them all the time when I hit certain WWW sites. I'm not sure what is going on, but I've learned to ignore them. Nate
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