North American Network Operators Group

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Re: Blocking port 135?

  • From: Bruce Pinsky
  • Date: Fri Aug 01 15:36:37 2003

Bob German wrote:


Absolutely. All of the NetBIOS ports: 135, 137, 138, 139, 445.
And filtering 445 in the outbound direction to prevent attacks from the inside out is probably prudent as well.

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bep