North American Network Operators Group

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Re: Port blocking last resort in fight against virus

  • From: mike harrison
  • Date: Tue Aug 12 13:00:07 2003

> There is legitimate traffic on 135. All users I've talked to have been 

We started blocking 135-139 and 445 a week ago... we got one complaint, 
and added an exception for those two ip addresses (one remote/one local).
We're just a small regional ISP, but we've seen little real use
of these ports by our customers across the 'net. This is a good thing.