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    Weird DNS forwarder issue for certain DNS names

    Scheduled Pinned Locked Moved DHCP and DNS
    13 Posts 5 Posters 1.6k Views
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    • keyserK
      keyser Rebel Alliance
      last edited by

      My ISP's DNS servers. When using them directly with nslookup Everything works as expected.
      So as far as I can tell the forwarder was the culprit.

      Love the no fuss of using the official appliances :-)

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        I don't use the forwarder since 2.2 and resolver became standard.  Do you have the resolver in forwarder mode or true resolver?

        An intelligent man is sometimes forced to be drunk to spend time with his fools
        If you get confused: Listen to the Music Play
        Please don't Chat/PM me for help, unless mod related
        SG-4860 24.11 | Lab VMs 2.8, 24.11

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        • keyserK
          keyser Rebel Alliance
          last edited by

          I decided on true resolver mode.

          Love the no fuss of using the official appliances :-)

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          • keyserK
            keyser Rebel Alliance
            last edited by

            FYI:

            I have the exact same problem with the forwarder on a PFsense 2.1.5 install I have. So i'm now certain it's a forwarder issue.

            Love the no fuss of using the official appliances :-)

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            • johnpozJ
              johnpoz LAYER 8 Global Moderator
              last edited by

              I doubt its a forwarder issue, more like an issue to where our forwarding too and whatever domain is in question, etc.. without any exact info its hard to test to see what the actual problem might be.

              An intelligent man is sometimes forced to be drunk to spend time with his fools
              If you get confused: Listen to the Music Play
              Please don't Chat/PM me for help, unless mod related
              SG-4860 24.11 | Lab VMs 2.8, 24.11

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              • keyserK
                keyser Rebel Alliance
                last edited by

                Found the issue. It was actually my ISP's DNS caching server (or more specifically - one of them) that caused the issue. Every time my forwarder hit that specific DNS server for resolution the issue occured…

                So PFsense's forwarder is working as expected.

                Love the no fuss of using the official appliances :-)

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                • D
                  doktornotor Banned
                  last edited by

                  Yeah, sadly the state of things appears to be such that it's generally best to avoid and ISP-provided DNS servers altogether. Broken, slow, badly maintained, not supporting DNSSEC, used for internet censorship. Sigh…  >:(

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                  • B
                    bennymundz
                    last edited by

                    @doktornotor:

                    Yeah, sadly the state of things appears to be such that it's generally best to avoid and ISP-provided DNS servers altogether. Broken, slow, badly maintained, not supporting DNSSEC, used for internet censorship. Sigh…  >:(

                    What dns servers do you suggest then ?

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                    • C
                      cmb
                      last edited by

                      @bennymundz:

                      What dns servers do you suggest then ?

                      Do your own recursion, or Google's public DNS is probably the least-bad of the other options.

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                      • johnpozJ
                        johnpoz LAYER 8 Global Moderator
                        last edited by

                        I don't understand why you don't just resolve yourself as well.. This is I believe the new default in pfsense.. If you have issues with that, then use say level3 open - 4.2.2.2 is one I always used..

                        Comcast dns use to be horrific, its has gotten better over the years.  But I like doing my own recursion so have full support of dnssec for sure, etc.

                        An intelligent man is sometimes forced to be drunk to spend time with his fools
                        If you get confused: Listen to the Music Play
                        Please don't Chat/PM me for help, unless mod related
                        SG-4860 24.11 | Lab VMs 2.8, 24.11

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