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    DNS over TLS

    Scheduled Pinned Locked Moved DHCP and DNS
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    • I
      IanJanus @IanJanus
      last edited by

      @ianjanus

      Pictures as requested:
      0_1552836517748_Resolver.PNG 0_1552836523729_PacketCapture.PNG

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        So pfsense wan is 192.168.2.2?

        So unbound actually restarted after you made the change?

        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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        • I
          IanJanus
          last edited by

          Yes, 192.168.2.2 is the WAN interface (it goes through an Edge Router before hitting the internet).

          I have restarted the unbound service several times but still get port 53.

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          • GrimsonG
            Grimson Banned
            last edited by

            So what DNS are your clients using? Also pfSense itself is probably using the Quad 9 servers directly. Any (proxy) packages running?

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            • johnpozJ
              johnpoz LAYER 8 Global Moderator
              last edited by

              ^ yup that could just be a client behind pfsense asking? You need to block them from using anything other than pfsense, or you need to redirect all dns to loopback on pfsense, etc.

              Do you see any traffic at all to 853, when you specifically ask for something that your sure is not cached, 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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              • I
                IanJanus @johnpoz
                last edited by

                @johnpoz The clients use pfsense for DNS and there are redirect rules, to force them to use pfsense. The packet capture was done using pfsense DNS lookup (under diagnostics).

                The only thing relevant could be DNS filtering using DNSThingy, the are no proxys being used.

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                • GrimsonG
                  Grimson Banned @IanJanus
                  last edited by

                  @ianjanus said in DNS over TLS:

                  The packet capture was done using pfsense DNS lookup (under diagnostics).

                  And this will also use the DNS servers configured in the general settings directly. Test from a client.

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                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator
                    last edited by johnpoz

                    And again going to ask are you seeing any traffic to 853?

                    You do understand that pfsense, or the diagnostic lookup could be asking all your listed dns, be it loopback which would use tls or directly which would not be using tls.

                    A better setting for this would prob be to set the forwarders directly in unbound, vs setting them in general.. That way you can pfsense only use loopback - which would then not be possible to ask dns directly

                    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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                    • I
                      IanJanus
                      last edited by

                      Correct I see no traffic using 853 only 53. I have redirects so all DNS queries undertaken by clients always go to pfsense loopback address.

                      I have tried dns lookup from clients and from pfsense but still get the same result.

                      I think I need to investigate if DNSThingy is incepting DNS queries, so I have logged a ticket with them.

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                      • johnpozJ
                        johnpoz LAYER 8 Global Moderator
                        last edited by johnpoz

                        Well its click click... You actually sure unbound restarted? I just showed you how easy it is to turn on and off... I personally don't do it - because its just stupid.. Its like how can I slow down my dns.. OH yeah - let me throw it inside a tls tunnel and hand all my dns queries to company X, etc.

                        You sure unbound is even running and your not running the forwarder, etc.

                        Unbound will show you what its doing, set the log to level 2 in the advanced tab

                        Mar 17 14:22:46 unbound 60954:0 info: reply from <.> 9.9.9.9#853

                        Look in your conf... Do you see the forwarding section in there

                        2.4.4-RELEASE][admin@sg4860.local.lan]/: cat /var/unbound/unbound.conf

                        # Forwarding
                        forward-zone:
                                name: "."
                                forward-tls-upstream: yes
                                forward-addr: 9.9.9.9@853
                        
                        

                        Now clicky clicky back to resolving like any sane human would want to do ;)

                        You sure your not redirecting to 9.9.9.9 directly? Lets see your redirect rule, 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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