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    What is correct way to test open ports?

    General pfSense Questions
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    • chudak
      chudak last edited by

      Hello,

      Who do you trust when do open ports testing?

      I test 3 ports 80, 443 and 32400 (forwarded) with https://www.yougetsignal.com/tools/open-ports/ (from remote machine) and  with Diagnostics/Test Port and getting =>

      https://www.yougetsignal.com/tools/open-ports/

      80 closed
      443         closed
      32400 open

      Diagnostics/Test Port

      80 open
      443         closed
      32400 closed

      ???

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      • H
        heper last edited by

        you should always test ports from wherever location you wish it to be open or closed.

        so basically:

        from lan: port80 will be open by default
        from externam: port80 will be closed/filtered by default

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        • Gertjan
          Gertjan last edited by

          @chudak:

          Who do you trust when do open ports testing?

          There is one.
          The most famous one actually - for years if not decades.
          https://www.grc.com/x/ne.dll?bh0bkyd2

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          • johnpoz
            johnpoz LAYER 8 Global Moderator last edited by

            I just use canseeme.org for single port tests..

            As some sort of scan to my own box.. I know what is open.. I can see what is listening.  Why would I need to do a full port scan?  But sure I have used grc.com before to show a point.  But if I needed to do it would just run nmap off a server have on the internet (multiple vps all over the place)

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            • K
              kpa last edited by

              @Gertjan:

              @chudak:

              Who do you trust when do open ports testing?

              There is one.
              The most famous one actually - for years if not decades.
              https://www.grc.com/x/ne.dll?bh0bkyd2

              GRC port scan is good but take their other scans with a pinch of salt.

              1 Reply Last reply Reply Quote 0
              • W
                Waqar.UK last edited by

                GRC also allows you to choose which port to scan as well.

                1 Reply Last reply Reply Quote 0
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