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ISP port blocking practice

Subject: ISP port blocking practice
From: franck at genius.com (Franck Martin)
Date: Sat, 4 Sep 2010 11:49:33 +1200 (FJT)
In-reply-to: <[email protected]>

I asked around and got this presentation, but you can search for OP25B too:

http://www.anacom.pt/streaming/Honda.pdf?contentId=988141&field=ATTACHED_FILE

Some non-anecdotal data about the effectiveness of blocking port 25.

References:
- ISP port blocking practice
  - From: dougb at dougbarton.us (Doug Barton)

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