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    Local DNS Records on different subnet

    Scheduled Pinned Locked Moved General pfSense Questions
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    • jhmc93J
      jhmc93 @stephenw10
      last edited by

      @stephenw10 So I can't pass it through then?

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      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        Can't pass what through?

        You need clients to use the pi-hole or pfSense for DNS in order be able to resolve anything stored there.

        Right now they are probably using the ISP router for DNS because it is running DHCP for that subnet?

        jhmc93J 1 Reply Last reply Reply Quote 0
        • jhmc93J
          jhmc93 @stephenw10
          last edited by

          @stephenw10

          Hello,
          So my pi hole is connected to isp router then pfsense dns is connected to pi hole and pi hole is then pointing to an ip that runs traefik in my pfsense subnet, hope that makes sense

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          • stephenw10S
            stephenw10 Netgate Administrator
            last edited by

            Ok. And the issue is that client in the same segment as the pihole are not using it for DNS?

            The problem is that they are probably being set to use the ISP router for DNS by the ISP router if it's still running as a DHCP server.

            jhmc93J 1 Reply Last reply Reply Quote 0
            • jhmc93J
              jhmc93 @stephenw10
              last edited by

              @stephenw10 so basically pi hole runs on 192.18.. pfsense which is also 192.168.. is pointing to that in DNS settings then the :LAN side of the pfsense is 10.84.. which is where my traefik is located, the problem I have is how do i get my laptop which is on for example 192.168.. to use my local cname records even though I have manually set the pihole as the laptops dns server. Because traefik is on my pfsense subnet it wont resolve to a webpage set on CNAME on pihole.

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              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                What does it resolve to? If the client is statically configured to use the pihole for DNS it should resolve it the same as anything else.

                However it may not be able to reach whatever that resolves to. That's a different problem.

                jhmc93J 1 Reply Last reply Reply Quote 0
                • jhmc93J
                  jhmc93 @stephenw10
                  last edited by

                  @stephenw10 here some screenshots:

                  Screenshot 2024-11-27 195656.png Screenshot 2024-11-27 195733.png Screenshot 2024-11-27 200731.png

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                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    There's no need to obscure private IP addresses like 192.168.X.X or 10.X.X.X. Those are only defined inside your network.

                    So what does the client resolve the traefik server to?

                    It looks like you have a domain override pointing to a server behind pfSense. Does the pihole have a route to that subnet?

                    Can you connect to the traefik server from a client using it's IP address directly?
                    The client will also need a route to that subnet via pfSense which it won't have by default.

                    It seems like you may have both a routing issue and DNS problems here. And that is typical of running clients on the WAN side of pfSense where asymmetry is highly likely.

                    jhmc93J 1 Reply Last reply Reply Quote 0
                    • jhmc93J
                      jhmc93 @stephenw10
                      last edited by

                      @stephenw10 see the DNS CNAME records resolve if I'm on pfsense's subnet but not isp subnet, pihole runs via isp subnet but it does work when I set the pfsense to that pihole via ISP

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                      • stephenw10S
                        stephenw10 Netgate Administrator
                        last edited by

                        Does it actually not resolve or just not connect?

                        The screenshot above looks like a connection issue not a DNS problem.

                        If it does resolve what is it resolving to at the client?

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                        • jhmc93J
                          jhmc93 @stephenw10
                          last edited by jhmc93

                          @stephenw10 so I am on my pfsense subnet right now,Screenshot 2024-11-27 215709.png

                          where as it doesn't do that if I'm on my isp router

                          johnpozJ 1 Reply Last reply Reply Quote 0
                          • johnpozJ
                            johnpoz LAYER 8 Global Moderator @jhmc93
                            last edited by johnpoz

                            @jhmc93 that browser error is not a dns not resolving, browser not resolving something would look like

                            2024-11-27_160113.jpg

                            Your machine resolved that to something, is it the right thing - who knows from that picture - but it did resolve it.

                            If your using firefox go to about:networking#dns it will show you what you resolved something too

                            dns.jpg

                            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 2.7.2, 24.11

                            jhmc93J 1 Reply Last reply Reply Quote 0
                            • jhmc93J
                              jhmc93 @stephenw10
                              last edited by jhmc93

                              not showing anything

                              1 Reply Last reply Reply Quote 0
                              • jhmc93J
                                jhmc93 @johnpoz
                                last edited by

                                @johnpoz Screenshot 2024-11-27 224050.png
                                guessin this is it can't be sure though

                                johnpozJ 1 Reply Last reply Reply Quote 0
                                • stephenw10S
                                  stephenw10 Netgate Administrator
                                  last edited by

                                  On the client just try to resolve it at the command line so you can see what it resolves to.

                                  If it resolves to something in the 10.84.x.x subnet (pfSense LAN) then you will need a route to it via pfSense.

                                  If you just put all your clients on a subnet behind pfSense this would work without issue.

                                  jhmc93J 1 Reply Last reply Reply Quote 0
                                  • jhmc93J
                                    jhmc93 @stephenw10
                                    last edited by

                                    @stephenw10 by client do u mean my machine I work on, the traefik machine or the pihole server??

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                                    • stephenw10S
                                      stephenw10 Netgate Administrator
                                      last edited by

                                      I mean a desktop/laptop in the 192.168.8.X subnet (pfSense WAN side).

                                      jhmc93J 1 Reply Last reply Reply Quote 0
                                      • johnpozJ
                                        johnpoz LAYER 8 Global Moderator @jhmc93
                                        last edited by johnpoz

                                        @jhmc93 how would you think that is it - that name ocsp.digicert.com is not the fqdn you were trying to go to.. Come on Man!!

                                        The fqdn in your proxmox shows pve.local.something - does that look anything even remotely close? That is the oscp check for a digicert cert..

                                        https://en.wikipedia.org/wiki/Online_Certificate_Status_Protocol

                                        I thought it was pretty obvious - I highlighted 2 names that are local on my network, nas and sg4860.home.arpa - that resolve to local rfc1918 IPs

                                        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 2.7.2, 24.11

                                        jhmc93J 1 Reply Last reply Reply Quote 0
                                        • jhmc93J
                                          jhmc93 @johnpoz
                                          last edited by

                                          @johnpoz 59ce8966-1ead-493e-b47c-7d1c928cf9f2-image.png I'm thick sorry

                                          johnpozJ 1 Reply Last reply Reply Quote 0
                                          • johnpozJ
                                            johnpoz LAYER 8 Global Moderator @jhmc93
                                            last edited by

                                            @jhmc93 that doesn't show any iP it was resolved too - unless you cut it out columns are different order?

                                            not sure why it would even show that?? If it didn't resolve to something, and you would get a different error if had no ip to talk to, like I posted above.

                                            partitionjpg.jpg

                                            Can we see the top of that output, see where it shows suffix and doh and trr mode.

                                            Also that seems like a really odd isolation key for going to some local domain.. jhncmedia.com

                                            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 2.7.2, 24.11

                                            jhmc93J 1 Reply Last reply Reply Quote 0
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