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    Is this normal behavior for the Resolver to act that way?

    Scheduled Pinned Locked Moved General pfSense Questions
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    • M
      marchand.guy @stephenw10
      last edited by

      @stephenw10 said in Is this normal behavior for the Resolver to act that way?:

      you would normally only see local host there if you have followed the guide.

      Not according to the doc at https://docs.netgate.com/pfsense/en/latest/recipes/dns-over-tls.html#figure-dot-servers

      But maybe I misunderstand what you are meaning.

      What I see on the dashboard is:
      c1bf0912-a5fb-4e02-acb3-0a97bbc0fc4b-image.png

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      • M
        marchand.guy @johnpoz
        last edited by marchand.guy

        @johnpoz said in Is this normal behavior for the Resolver to act that way?:

        but clients talking to pfsense IP for dns would not.

        And I made sure of that with this NAT:
        220b79a6-d521-4ca5-bcf3-d9697bf9e226-image.png
        (and yes, I tried without it)

        And I go further withe these rules (and yes, I tried without them):
        69e73926-364e-4f1e-b1bc-a9a5fa242393-image.png
        cd99837a-68fb-4990-9340-d4d17602a44b-image.png

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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          Oh, you're right it does still test them from Diag > DNS Lookup even if it ignores them for real resolution.

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          • M
            marchand.guy
            last edited by marchand.guy

            UPDATE:
            After stripping the FW of all packages, openVPN client, NAT and rules associates, it turns out that the openVPN client installation is causing the problem. I suspect it has something to do with the DNS it is trying to use, as I am not allowing it to use it's own resolver. I will read further on that and try in making it work. Thank you all.

            Correction: This morning stripping th FW did not correct the problem. Until unbound restarts.

            johnpozJ 1 Reply Last reply Reply Quote 1
            • johnpozJ
              johnpoz LAYER 8 Global Moderator @marchand.guy
              last edited by

              @marchand-guy your problem is most likely you are routing all traffic out your vpn - even your tls dns..

              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

              M 1 Reply Last reply Reply Quote 1
              • M
                marchand.guy @johnpoz
                last edited by

                @johnpoz Not according to pftop. I have rules that specify when going thru the VPN interface.

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                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  But is the client allowing the remote server to pass it a default route?

                  M 1 Reply Last reply Reply Quote 0
                  • M
                    marchand.guy @stephenw10
                    last edited by

                    @stephenw10 I don't think so:
                    4d61a475-8474-4df7-b4c6-9347261be985-image.png

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                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      I usually just set don't pull routes. But it's easy enough to check what's happening there in the routing table.

                      You can't policy route traffic from the firewall itself so it will just use the system default route at that point. I'd bet that's what's happening.

                      M 2 Replies Last reply Reply Quote 0
                      • M
                        marchand.guy @stephenw10
                        last edited by

                        @stephenw10 I will try.
                        Thank you.

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

                          @marchand-guy yeah a peak at your routing table will tell you - you could also look here

                          routing.jpg

                          the gateway you have set for your vpn should not be the default.

                          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

                          M 1 Reply Last reply Reply Quote 0
                          • M
                            marchand.guy @johnpoz
                            last edited by

                            @johnpoz Looks good:
                            e7dcbd4f-c1b9-4e07-ac3c-c534b7f1cc81-Screenshot from 2025-05-30 11-56-16.png file:///home/guy/Downloads/Screenshot%20from%202025-05-30%2011-56-16.png

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                            • M
                              marchand.guy @stephenw10
                              last edited by

                              @stephenw10 I tried the openvpn client seeting on not pulling route. It did not clear the problem. Furthermore, the gateway monitoring function for the vpn interface stopped working properly.
                              But your suggestion remains valid concerning the routing. Still investigating.

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

                                @marchand-guy not sure what there is to "investigate" just look in your routing table. take all of 2 seconds

                                routes.jpg

                                Unless you have a more specific route for your NS your pointing to - its going to go out the default route.

                                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

                                M 1 Reply Last reply Reply Quote 0
                                • M
                                  marchand.guy @johnpoz
                                  last edited by

                                  @johnpoz said in Is this normal behavior for the Resolver to act that way?:

                                  @marchand-guy not sure what there is to "investigate"
                                  Semantics...

                                  Looks fine to me but we don't have the same version, so:
                                  69d1cf2e-abb4-4e31-aa03-c1a47a304b3b-Screenshot from 2025-05-30 12-54-37.png file:///home/guy/Downloads/Screenshot%20from%202025-05-30%2012-54-37.png

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

                                    @marchand-guy well from that there its not routing traffic out any vpn..

                                    I have 2.8 running now and could test.. But I can tell you with like 99.9% certainty I will not be able to duplicate it.. Because if 2.8 broke dns resolution with users that use vpn - the forums would be on fire with people complaining. So pretty sure whatever your issue is unique to your setup.

                                    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

                                    M 1 Reply Last reply Reply Quote 0
                                    • M
                                      marchand.guy @johnpoz
                                      last edited by

                                      @johnpoz Agreed!
                                      Thank you, again 👍

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                                      • stephenw10S
                                        stephenw10 Netgate Administrator
                                        last edited by

                                        It only happens after reboot though and restarting unbound after boot corrects it. So that suggests that the default route is wrong when Unbound initially opens the outbound state during boot only. For some reason!

                                        M 2 Replies Last reply Reply Quote 0
                                        • M
                                          marchand.guy @stephenw10
                                          last edited by

                                          @stephenw10 Exactly. Still investigating.

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                                          • M
                                            marchand.guy @stephenw10
                                            last edited by marchand.guy

                                            @stephenw10 So, I removed every packages, every openvpn clients (and associated interface, NAT and rules. Every rules and NAT forwarding related to DoT.
                                            What remained for me was to put the NAT rules to automatic instead of manual. Since I upgraded to 2.8 CE from 2.7.2 the rules went from (forget the VPN1 interface, it was removed. this is an old picture):
                                            52d32bb2-092f-4439-b896-9f23584124ce-image.png

                                            To:
                                            71448371-681d-48a9-9185-a429fd107862-image.png

                                            I then made sure to only select the DNS interfaces as follow:
                                            Network interface LAN, Localhost
                                            Outgoing network interface WAN, Localhost

                                            And rebooted the FW.

                                            This setting breaks the resolution sevice on the LAN side, as no internet sites are acessible via browser or apps.

                                            Until I manually restart the unbound service. Then everything works.

                                            At this point, I'm troying the towel and leaving the interfaces used for DNS at their defaul values; which is "All" for both settings. Everything works after that with a reboot.

                                            F**k you OCD monkey! 😊

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