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    Problem with DNS forwarding

    Scheduled Pinned Locked Moved DHCP and DNS
    13 Posts 5 Posters 3.5k Views
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    • C
      cmb
      last edited by

      You have to use the DNS forwarder as your DNS server if you want to get its overrides.

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      • N
        netsysadmin
        last edited by

        Do you mean that all LAN machines should use the IP address of the LAN interface of pfSense as their DNS server?

        Thank you

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        • M
          muswellhillbilly
          last edited by

          Why not set your host overrides/split DNS on your Mac DNS servers instead?

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          • N
            netsysadmin
            last edited by

            Actually, that was my last resort, as there will be about 80 DNS records to create manually on the OS X servers, well on the primary DNS server.

            I think that's what I'll be doing anyway.

            However, for the sake of my understanding, could anyone explain to me why pfSense was not resolving the FQDN to the internal IP?

            Thank you

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            • johnpozJ
              johnpoz LAYER 8 Global Moderator
              last edited by

              "why pfSense was not resolving the FQDN to the internal IP?"

              sure looks like it was to me

              sens.mydom.com
              Server:      10.40.0.1
              Address:  10.40.0.1#53

              Name:  sens.mydom.com
              Address: 10.40.0.76 => CORRECT INTERNAL IP ADDRESS

              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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              • N
                netsysadmin
                last edited by

                Actually I meant why pfSense was not resolving the FQDN to the internal IP, when the local machines use the Mac OS X servers as DNS servers, the latter pointing to pfSense as forwarding server.

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                • C
                  cmb
                  last edited by

                  @netsysadmin:

                  Actually I meant why pfSense was not resolving the FQDN to the internal IP, when the local machines use the Mac OS X servers as DNS servers, the latter pointing to pfSense as forwarding server.

                  Your shown nslookup results prove the OS X servers aren't actually using the forwarder to provide their answers.

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                  • N
                    netsysadmin
                    last edited by

                    Your shown nslookup results prove the OS X servers aren't actually using the forwarder to provide their answers.

                    Yes I agree, but did not understand why.

                    What I understood is that, if I want to use pfSense's "host overrides", all LAN machines should use pfSense as their DNS server.
                    Using another internal DNS server, even if it is configured to use pfSense as a forwarding server, will not correctly resolve the entries in pfSense's "host overrides".

                    Did I understand correctly?

                    Thank you.

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                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator
                      last edited by

                      "all LAN machines should use pfSense as their DNS server."

                      Huh???

                      If your internal forwards to pfsense then, any overrides in pfsense would resolve to what you have the host override too.

                      See I created a host override, I setup my windows dns to forward to pfsense..  It resolves the host override I put in pfsense..

                      internaldnsresolvefrompfsenseoverride.png
                      internaldnsresolvefrompfsenseoverride.png_thumb

                      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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                      • C
                        coxhaus
                        last edited by

                        Since you have a local DNS server you can add an A record on your DNS server with the local IP address.  I have done this for a Web server so when you accessed the server from an outside registered DNS name the web server will resolve to an outside IP address from outside and if you are local the local DNS server will resolve the Web server name to a local IP address.

                        Chaining DNS server should work the same way as long as you are local since private IP addresses are not allowed on the internet.

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