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    ATT Fiber DNS Issue

    Scheduled Pinned Locked Moved Off-Topic & Non-Support Discussion
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator @elvisimprsntr
      last edited by

      @elvisimprsntr said in ATT Fiber DNS Issue:

      Quad9
      Upstream DoT encryption and DNSSEC enabled

      If your using quad9, dnssec should not be enabled locally.. Using any forwarder this should not be enabled.

      https://docs.quad9.net/Quad9_For_Organizations/DNS_Forwarder_Best_Practices/

      Disable DNSSEC Validation

      Since Quad9 already performs DNSSEC validation, DNSSEC being enabled in the forwarder will cause a duplication of the DNSSEC process, significantly reducing performance and potentially causing false BOGUS responses.

      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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      • E
        elvisimprsntr @johnpoz
        last edited by

        @johnpoz said in ATT Fiber DNS Issue:

        Disable DNSSEC Validation

        Thanks. Disabled and ran Steve Gibson's DNS Spoofability Test to confirm DNSSEC is enabled.

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        • E
          elvisimprsntr @johnpoz
          last edited by elvisimprsntr

          @johnpoz

          Update:

          With pfSense DNSSEC disabled, unable to resolve DNS queries for static mappings in DHCP Server.

          Rebooted multiple times with the same result.

          Restored to previous config, rebooted, and everything is working again.

          johnpozJ 1 Reply Last reply Reply Quote 0
          • johnpozJ
            johnpoz LAYER 8 Global Moderator @elvisimprsntr
            last edited by

            @elvisimprsntr dnssec has ZERO to do with your static mappings - ZERO!!!

            Not sure what else you changed or what happen, but it has ZERO to do with dnssec.

            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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            • E
              elvisimprsntr @johnpoz
              last edited by

              @johnpoz

              The only change I intentionally made was disable DNSSEC, but comparing the two config files it also removed the following

              		<regdhcp></regdhcp>
              		<regdhcpstatic></regdhcpstatic>
              

              I did not make this change via the GUI.

              I'm taking the "if it ain't broke, don't fix it" position.

              johnpozJ 1 Reply Last reply Reply Quote 0
              • johnpozJ
                johnpoz LAYER 8 Global Moderator @elvisimprsntr
                last edited by

                @elvisimprsntr did you switch to kea vs isc, previously or currently.

                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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                • E
                  elvisimprsntr @johnpoz
                  last edited by elvisimprsntr

                  @johnpoz

                  I switched to KEA a long time ago.

                  In case it is relevant, I have all the recommended patches applied on 2.7.2

                  johnpozJ 1 Reply Last reply Reply Quote 0
                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator @elvisimprsntr
                    last edited by johnpoz

                    @elvisimprsntr Well maybe your change in the config in unbound cleared up the old config and so is not loading your statics - but kea doesn't even support statics..

                    https://docs.netgate.com/pfsense/en/latest/releases/23-09.html#kea-dhcp-server-feature-preview-now-available

                    kea.jpg

                    What specific version of pfsense are you running - they have made some progress in kea with latest + versions.. I have not paid attention to much to the kea changes in +, since I have no plans on switching until they have all the kinks worked out, etc.

                    But when kea first came out it did not support registration of dhcp reservations. Are you running 24.11 - registrations were to be working in 24.11 version.

                    But there might be a config you might have to do even if run 24.11 because you can now do it per interface, or globally, etc..

                    "DNS Registration can be configured on a per-interface or global manner, with the ability to enable or disable specific interfaces as needed."

                    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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                    • E
                      elvisimprsntr @johnpoz
                      last edited by

                      @johnpoz

                      Running 2.7.2 with all the latest patches applied.

                      Now that I think about it, I recall reading posts when KEA was first advertised of others having static mapping problems, but I never had a problem.

                      So it seems with those two settings, KEA does support it.

                      johnpozJ 1 Reply Last reply Reply Quote 0
                      • johnpozJ
                        johnpoz LAYER 8 Global Moderator @elvisimprsntr
                        last edited by

                        @elvisimprsntr no kea in 2.7.2 does not support it - not from the release notes.

                        You might of had left over in unbound your old statics - but your change in your config on unbound cleared them, and kea did not reload them.

                        If you are CE and you want to use reservations in unbound, I would suggest you move back to isc for the time being. 2.8 will prob bring the registration feature of kea in 24.11

                        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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                        • E
                          elvisimprsntr @johnpoz
                          last edited by elvisimprsntr

                          @johnpoz

                          I switched to KEA when I first saw the banner that ISC was being deprecated and recommended switching to KEA.

                          I have never had a problem until I tried to disable DNSSEC.

                          Since it seems to be working, I'll stick with KEA.

                          johnpozJ 1 Reply Last reply Reply Quote 0
                          • johnpozJ
                            johnpoz LAYER 8 Global Moderator @elvisimprsntr
                            last edited by

                            @elvisimprsntr do new ones get added? Do you have dnssec disabled? Or did you just load up your last config?

                            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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                            • E
                              elvisimprsntr @johnpoz
                              last edited by elvisimprsntr

                              @johnpoz

                              • Just restored previous config with DNSSEC enabled.
                              • I have made recent changes to static mapping and they get added.
                              • I even have some DNS host overrides that work as well.

                              Not sure what to tell ya, but KEA has always worked for me.

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