How can I monitor ports on Windows?

Posted by Olav on Super User See other posts from Super User or by Olav
Published on 2012-11-11T08:20:56Z Indexed on 2012/11/11 11:08 UTC
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What is the simplest way on "local" (1*) Windows, for known ports, to:

  1. Find out if it is used.
  2. Find out as much as possible about what is behind the port.
  3. Find out as much as possible about traffic through the port.
  4. Find out if something else is interfering with the port and traffic to it.

I have used Fiddler in the past, but I think that's mostly HTTP? I don't if Wire-shark does more? I think there is a tool closely integrated with Windows? Which one? (5). I am looking at NMap, but its seems to be more a suite of tools, and a high entry level.

1*: Primarily this is for what happens inside my Windows Machine, but if necessary, I can for example use a VM, or the wireless connection.

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