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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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    • johnpozJ
      johnpoz LAYER 8 Global Moderator
      last edited by

      Where were you forwarding too?

      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

        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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