North American Network Operators Group|
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RE: Blocking port 135?
I also would recommend blocking these outbound, if they are not. Especially 137, it's so useful in finding Windows machines on other networks. On 1 Aug 2003 at 14:09, Adi Linden wrote: Date sent: Fri, 1 Aug 2003 14:09:52 -0500 (CDT) From: Adi Linden <firstname.lastname@example.org> To: Bob German <email@example.com> Copies to: firstname.lastname@example.org Subject: RE: Blocking port 135? > > > Absolutely. All of the NetBIOS ports: 135, 137, 138, 139, 445. > > Ports 137, 138, 139, 445 have been blocked for a long time. But port 135 > wasn't until today... > > Thanks! > Adi > >