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    DNS Resolver "forgets" Domain Overrides from time to time

    Scheduled Pinned Locked Moved DHCP and DNS
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    • D
      diego27
      last edited by diego27

      Hello

      I added a Domain Override for my local AD. So xxx.local to the IP of the AD. It all works, but randomly the DNS Resolver can not resolve xxx.local. Then I restart the DNS Resolver Service and all works again.

      Any Ideas?

      Edit:
      I'm using pfSense v2.4.5

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      • GertjanG
        Gertjan
        last edited by

        Hi,

        When it happens again, before restarting the Resolver, check the file /etc/hosts
        Your DNS override should be there.
        And the Resolver primes from that file.

        No "help me" PM's please. Use the forum, the community will thank you.
        Edit : and where are the logs ??

        D 1 Reply Last reply Reply Quote 0
        • D
          diego27
          last edited by diego27

          This post is deleted!
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          • D
            diego27 @Gertjan
            last edited by

            @Gertjan

            It doesn't happened since I posted my question, but I took a look at the hosts file and I can't see any overwrite in there. See:

            Content of hosts file (anonymized):

            127.0.0.1       localhost localhost.example.com
            ::1     localhost localhost.example.com
            192.168.1.1    myfw.example.com myfw
            
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            • johnpozJ
              johnpoz LAYER 8 Global Moderator
              last edited by johnpoz

              When you you say you can not resolve your AD domain, the override is not listed in domain overrides?

              domain overrides would not be in the /etc/hosts file, only host overrides would be there.

              Domain overrides would be here

              [2.4.5-RELEASE][admin@sg4860.local.lan]/var/unbound: cat domainoverrides.conf 
              forward-zone:
                      name: "something.com"
                      forward-addr: 192.168.9.44
              [2.4.5-RELEASE][admin@sg4860.local.lan]/var/unbound: 
              

              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

              D 1 Reply Last reply Reply Quote 0
              • GertjanG
                Gertjan
                last edited by Gertjan

                Strange.

                I just check the manual : host overrides MUST be there.

                Like these :
                71c35d92-5f75-4eeb-a38d-cf85e7e149ac-image.png

                I found it in the /etc/hosts file like

                ...
                10.0.0.2	ddwrt.brit-hotel-fumel.net ddwrt
                ....
                

                All DHCP Static leases, and dynamic leases should be there also.

                edit : host overrides - domain ovverride is something different, they go into the unbound config (didn't check).

                No "help me" PM's please. Use the forum, the community will thank you.
                Edit : and where are the logs ??

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                • johnpozJ
                  johnpoz LAYER 8 Global Moderator
                  last edited by

                  That is not a "domain override" that is just a host entry.. Ie a host override..

                  Yeah all those would be in etc/hosts

                  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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                  • D
                    diego27 @johnpoz
                    last edited by

                    @johnpoz

                    If I go under Diagnostics->DNS Lookup normally it resolves fine:

                    Bildschirmfoto 2020-05-06 um 18.31.58 PM.png

                    But from time to time something happens and the domain couldn't be resolved anymore. Then in DNS Lookup:

                    Bildschirmfoto 2020-05-06 um 18.32.18 PM.png

                    Then if I restart the DNS Resolver Service it directly works again.

                    Currently it works and I can see it also in the domainoverrides.conf

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                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator
                      last edited by

                      your using .local - yeah that not a good idea at all! Apple screwed the pooch for doing that long time ago..

                      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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                      • D
                        diego27 @johnpoz
                        last edited by diego27

                        @johnpoz Okay thx for the info. I'll fix this and hope that this is somehow related to my problem.

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                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator
                          last edited by

                          When they came out with RFC 6762, and using .local for mdns stuff - not a good idea to use that for your local dns names. I would stay away from any single label as well to be honest.

                          Using something like lan.localdomain if you want.. something.tld is best.. In a perfect world you wold own actual domain, just not use it on the public side.. Or just use something that is unlikely ever going to be a public tld..

                          I use local.lan - since I find it very very unlikely that .lan will ever be a public .tld

                          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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                          • jimpJ
                            jimp Rebel Alliance Developer Netgate
                            last edited by

                            RFC 8375 sets aside .home.arpa for this kind of use, which is what everyone should be migrating to eventually (unless you have a real domain)

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