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    FQDN not Resolving

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    • scottalanmillerS
      scottalanmiller @Dashrender
      last edited by

      @Dashrender said:
      , but really only RDS, not other applications running on Windows, say the accounting softtware - that would require a full blown VPN Client install, or a SSL VPN client that did the same as the full blown one, and installed itself into the network stack.
      ?

      I don't understand what you are thinking here. Why do you feel that apps need to be that way?

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      • stacksofplatesS
        stacksofplates @Dashrender
        last edited by

        @Dashrender said:

        @johnhooks said:

        @Dashrender I wanted to do a quick demo for you. This is on my Chromebook, but I used the default SSH app, because most people aren't going to have it set up the way I do. I used ChromeRDP and attempted to connect to 127.0.0.1:8080 to show it wouldn't work, then connected normally to my Server 2012. Then, I ssh with tunneling and connect to Server 2012 at 127.0.0.1:8080.

        Youtube Video

        But Chromebooks are based on Linux, so it's not the same as doing it on windows.

        So with Chromebooks I totally understand how this is working... you are opening a terminal session to your local machine.. then running a command which will interact with the network stack.

        It's the same as here. You add the arguments in this screen:

        0_1453313137409_putty_tunnel.png

        Just the same as if you were using X11 forwarding

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        • DashrenderD
          Dashrender
          last edited by

          Where's the network shim come from?

          If I have a local app sending packets to port 8080, and those are being forwarded to another IP on whatever port is assigned, that happens because a shim is in place, right?

          a shim in this case is a good thing

          stacksofplatesS scottalanmillerS 2 Replies Last reply Reply Quote 0
          • stacksofplatesS
            stacksofplates @Dashrender
            last edited by stacksofplates

            @Dashrender said:

            Where's the network shim come from?

            If I have a local app sending packets to port 8080, and those are being forwarded to another IP on whatever port is assigned, that happens because a shim is in place, right?

            a shim in this case is a good thing

            https://chamibuddhika.wordpress.com/2012/03/21/ssh-tunnelling-explained/

            localhost isn't the client you are on, you're accessing localhost on the remote system on port 8080

            I guess I did say your localhost above, I apologize for the confusion.

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            • scottalanmillerS
              scottalanmiller @Dashrender
              last edited by

              @Dashrender said:

              Where's the network shim come from?

              If I have a local app sending packets to port 8080, and those are being forwarded to another IP on whatever port is assigned, that happens because a shim is in place, right?

              a shim in this case is a good thing

              No, not a shim at all, a tunnel. Very different. This is a normal application using the normal network stack. In no way is this shimming or hijacking or modifying the stack.

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              • DashrenderD
                Dashrender
                last edited by

                You can help me understand this later...

                Where I am falling down is.... How does the locally installed RDS client know to send its traffic to the tunnel and not the normal network card?

                stacksofplatesS 1 Reply Last reply Reply Quote 0
                • stacksofplatesS
                  stacksofplates @Dashrender
                  last edited by

                  @Dashrender said:

                  You can help me understand this later...

                  Where I am falling down is.... How does the locally installed RDS client know to send its traffic to the tunnel and not the normal network card?

                  The SSH server you log into is the one that that RDS is communicating with. Like in the image below, replace yahoo with the RDS server.

                  0_1453327880064_localportforwarding.jpg

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                  • DashrenderD
                    Dashrender
                    last edited by

                    In looking at this graphic, the browser is on the opposite side of who is creating the SSH tunnel..
                    if you move the SSH to the work side... and leave the browser on that same side.. will it still work?

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                    • stacksofplatesS
                      stacksofplates
                      last edited by stacksofplates

                      The work side is creating the tunnel, and using their browser. The SSH server is on the home side.

                      You can easily flip it around and have the SSH server be on the work side and the home side connecting through the browser.

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                      • DashrenderD
                        Dashrender
                        last edited by

                        Well it only took nearly all day to understand what @johnhooks and @scottalanmiller where talking about... but now I do.

                        It works because the RDS client is not pointing to yourservername.domain.com or even your internal IP address.

                        Instead the RDS client is told to use localhost or 127.0.0.1. The local machine then, through a forwarder put in place by PuTTY sends all traffic destine for PuTTY assigned port to PuTTY and PuTTY forwards the traffic over the tunnel to port 3389 at the address set in the SSL -L command previously run.

                        OK I understand.
                        THANK the Maker! -C3P0

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