Date: Tue, 9 Nov 1999 13:29:15 -0700 From: "Chris Wasser" <cwasser@v-wave.com> To: "Vladimir Dubrovin" <vlad@sandy.ru>, "Mike Pritchard" <mpp@mppsystems.com> Cc: <security@FreeBSD.ORG> Subject: Re: Re[2]: Port 137 hitting my server Message-ID: <001d01bf2af1$38b2f380$271a6c18@vwave.com> References: <19991109060320.B7018@mppsystems.com> <3779.991109@sandy.ru>
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----- Original Message ----- > UDP 137 is a port for NetBIOS name resolution. Microsoft realization > for IP->name resolution includes both DNS and netbios resolution. Every > time you connect to hosts running MS products (for example IIS) > which resolves your IP - host tries to resolve your NetBIOS name by > sending UDP packet to your 137 port. Noone hacks you it's ok ;) This is common knowledge. > You're wrong if you think only MS products do things like that. E.g. > sendmail tries to check your name via authorization (TCP 113) > protocol. Polling port 113 (identd) is one thing, NETBIOS name resolution is quite another. Microsoft always wants to be different from everyone, including by attempting to rewrite standards. > MCSE, MCP+I Sorry to break the news to you, but those aren't worth the paper they're printed on. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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