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    Vendor troubles..

    Water Closet
    wrcombs firewalls
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    • scottalanmillerS
      scottalanmiller
      last edited by

      If CC's use HTTPS from a machine to destination X:Y (where X is IP and Y is port), then to test you either need a complicated testing harness or just use telnet, which is the standard tool we all use. From the machine in question...

      telnet X Y
      
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      • scottalanmillerS
        scottalanmiller @WrCombs
        last edited by

        @WrCombs said in Vendor troubles..:

        I asked them how I'm supposed to troubleshoot when they take away my layer 3 troubleshooting tools such as tracert (to show the hops = layer 3, right? )

        That's correct, that's layer 3 (routing.) But what's expected to be the case is layer 4 (ports).

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        • scottalanmillerS
          scottalanmiller
          last edited by

          Youtube Video

          1 1 Reply Last reply Reply Quote 3
          • scottalanmillerS
            scottalanmiller
            last edited by

            That took all day to post.

            1 Reply Last reply Reply Quote 0
            • DustinB3403D
              DustinB3403
              last edited by

              Wouldn't test-netconnection destination:port work as well for this, assuming @WrCombs is on windows?

              scottalanmillerS 1 Reply Last reply Reply Quote 2
              • scottalanmillerS
                scottalanmiller @DustinB3403
                last edited by

                @DustinB3403 said in Vendor troubles..:

                test-netconnection

                Should, yes.

                https://docs.microsoft.com/en-us/powershell/module/nettcpip/test-netconnection?view=win10-ps

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                • PhlipElderP
                  PhlipElder @WrCombs
                  last edited by

                  @WrCombs

                  WFetch
                  https://support.microsoft.com/en-us/help/284285/how-to-use-wfetch-exe-to-troubleshoot-http-connections

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                  • 1
                    1337 @scottalanmiller
                    last edited by

                    @scottalanmiller said in Vendor troubles..:

                    Good video.

                    The only addition I'd like to make is that you want to do ping first. Not primarily to see if its working or not, but to test DNS / hostname resolution.

                    If you ping abcxyz123.com and you can see that it's gets the IP address, you know that there you don't have a problem with the hostname resolution.

                    Next step after testing with (ping, telnet, wget etc) is to get serious and test tcpdump/wireshark. Basically recording network traffic to analyze what happens.

                    BTW, on windows telnet is not enabled/installed by default.

                    WrCombsW 1 Reply Last reply Reply Quote 1
                    • WrCombsW
                      WrCombs @1337
                      last edited by

                      @Pete-S said in Vendor troubles..:

                      BTW, on windows telnet is not enabled/installed by default.

                      Hey I knew that one! lol I ran into that in the past, I just didn't know what telnet was used for.

                      scottalanmillerS 1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller @WrCombs
                        last edited by

                        @WrCombs said in Vendor troubles..:

                        @Pete-S said in Vendor troubles..:

                        BTW, on windows telnet is not enabled/installed by default.

                        Hey I knew that one! lol I ran into that in the past, I just didn't know what telnet was used for.

                        Sort of... everything, lol.

                        WrCombsW 1 Reply Last reply Reply Quote 0
                        • WrCombsW
                          WrCombs @scottalanmiller
                          last edited by

                          @scottalanmiller said in Vendor troubles..:

                          @WrCombs said in Vendor troubles..:

                          @Pete-S said in Vendor troubles..:

                          BTW, on windows telnet is not enabled/installed by default.

                          Hey I knew that one! lol I ran into that in the past, I just didn't know what telnet was used for.

                          Sort of... everything, lol.

                          well, I see that now, I watched the video then did my own research for it.

                          1 Reply Last reply Reply Quote 1
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