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    All web traffic suddenly being redirected to internal web server

    Scheduled Pinned Locked Moved NAT
    16 Posts 4 Posters 6.2k Views
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    • E
      Eugene
      last edited by

      My guess you are having problem with your web-server.

      http://ru.doc.pfsense.org

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      • jimpJ
        jimp Rebel Alliance Developer Netgate
        last edited by

        You have two port forwards on the "zon" interface that have an external address of 0.0.0.0 for port 80.

        That may also be an issue.

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        • E
          Eugene
          last edited by

          @jimp:

          You have two port forwards on the "zon" interface that have an external address of 0.0.0.0 for port 80.

          That may also be an issue.

          Could you explain how this might be related to NAT on WAN interface?

          http://ru.doc.pfsense.org

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          • jimpJ
            jimp Rebel Alliance Developer Netgate
            last edited by

            @Eugene:

            Could you explain how this might be related to NAT on WAN interface?

            It's not related to NAT on WAN, it's related to NAT reflection, which is a big ugly mess and could easily do this. :-)

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            • E
              Eugene
              last edited by

              @jimp:

              @Eugene:

              Could you explain how this might be related to NAT on WAN interface?

              It's not related to NAT on WAN, it's related to NAT reflection, which is a big ugly mess and could easily do this. :-)

              Ohโ€ฆ I did not see anything about nat redirection in initial post and supposed this web-site fails for outside people -)

              http://ru.doc.pfsense.org

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              • jimpJ
                jimp Rebel Alliance Developer Netgate
                last edited by

                He didn't say it, but if you look at the link I posted earlier, it's the #1 cause of this exact issue.

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                • E
                  evp
                  last edited by

                  Hey guys thanks so much for your help. The zon interface is my wan2 which this moment is down.

                  The webserver is accesabile from outside, and everything else is accessible from lan (ie. email, ping, traceroute), it really only seems to be port 80 that gets redirected to the webserver. What gets me is that system was up for 2 months and never had an issue, until this morning.

                  I also doubled checked the nat rule for port 80 to the webserver and is setup with external address.

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                  • jimpJ
                    jimp Rebel Alliance Developer Netgate
                    last edited by

                    You seem to be missing the real point here. If you have NAT reflection enabled, shut it off.

                    If that fixes the problem, then you still have an incorrectly specified port forward somewhere.

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                    • E
                      evp
                      last edited by

                      Hi thanks again. I shut off nat reflection, and now everything is fine, so obviously than I have a mis-configured port 80 somewhere. Why would this turn up now after 2 months of no problems?

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                      • jimpJ
                        jimp Rebel Alliance Developer Netgate
                        last edited by

                        It may be related to that second WAN that you said was just shut off, or some other cause. Somehow it's trying to reflect any external address instead of a specific one.

                        NAT Reflection is evilย  :)

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