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    DNS Lookups failing

    Scheduled Pinned Locked Moved DHCP and DNS
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    • P
      pmrozik
      last edited by

      Thanks for the reply @johnpoz . I am definitely not an expert, but I need Unbound in Forwarding Mode as I would like to use OpenDNS filters.

      "Enable Forwarding Mode: Controls whether Unbound will query root servers directly (unchecked, disabled) or if queries will be forwarded to the upstream DNS servers defined under System > General or those obtained by DHCP/PPPoE/etc (checked, enabled)."
      Source: https://docs.netgate.com/pfsense/en/latest/dns/unbound-dns-resolver.html

      I am getting around the whole issue by assigning OpenDNS as the default DNS server via DHCP, but there is an issue with resolving on the box as well as with the repository itself:

      tempsnip.jpg

      I think a reinstall is probably the best solution as I've had no luck with this guide:
      https://docs.netgate.com/pfsense/en/latest/packages/fixing-a-broken-pkg-database.html

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

        You sure its a database issue or a resolving issue? Looks to be a dns related problem.

        it is already in Resolver mode as you suggest.

        Then its not forwarding..

        but I need Unbound in Forwarding Mode

        Which is it?? You can not do both!!

        Well kind of you can ;) You could have a domain override that forwards for specific domains.

        I you want to use "forwarding mode" you have 2 choices - use resolver in "forwarding mode" or use dnsmasq - ie the forwarder and not unbound.

        dnsmasq has an advantage if forwarding in that it can forward to ALL your listed NS, and use the fastest reply.

        Eitherway no matter what mode you use - pfsense should really only point to itself for dns..So it can resolve and host overrides you put in place.. And use the cache..

        Why don't you paste up exactly what you have configured and we can work out your issue.

        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

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

          I didn't do a lot of research - reading the OpenDNS doc, but right now I'm not sure if OpenDNS supports "DNS over TLS".
          See here : last message https://support.opendns.com/hc/en-us/community/posts/115019265903-DNS-over-TLS.
          So be careful about TLS here.

          I just threw in

          95bf0cb5-3a57-49c5-a3d9-662c4a427bc5-image.png

          and activated Unbound's Forwarding mode, like this :

          c15ac4ba-c31b-4043-95dc-01932b69b4b9-image.png

          The rest was Ok direct :

          cd67b643-ce64-4675-97d3-e30cf2bebaa6-image.png

          Note : I did not test with TLS !! Just plain DNS forwarding.

          It took me 30 seconds to set it up ....

          Btw : Of course, I have a OpenDNS account setup correctly, and running - They have my WAN IP, so they will accept my DNS, and answer.


          This morning I tested Google "gimeyourdata!!" DNS servers, worked also just fine.

          It's time you tell use what you did wrong, so we can tell you what you did wrong.
          This ought to work.

          edit
          @pmrozik said in DNS Lookups failing:

          well as with the repository itself:

          Oh, even pfSense itself has no DNS any more.

          That's normal : as soon a people start typing 8.8.8.8 they have this right afterwards :

          45414331-7100-41c6-a3f6-2d0f16de7488-image.png

          Google should use another IPv4 like 6.6.6.6, it's far more appropriate.
          .... Hummm : I do understand know the 8.8.4.4 ...

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

          1 Reply Last reply Reply Quote 0
          • P
            pmrozik @johnpoz
            last edited by

            @johnpoz

            After reading your post I turned on dnsmasq with these the following settings:

            dnsmasq.JPG

            Still not resolving:

            dnslookup.JPG

            I then turned off the forwarder and tried unbound with the following settings:

            unbound.JPG

            Still broken.

            @Gertjan I think that it was perhaps being used as a toaster? NextGen Toaster with an IP address?

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

              So can you directly query these other ns with say dig or nslookup? What does the LOG say when you ask pfsense something..

              Maybe your isp only allows access to 8.8.8.8

              Do a simple query from a client to 8.8.4.4

              $ dig @8.8.4.4 www.google.com                                                   
                                                                                              
              ; <<>> DiG 9.14.2 <<>> @8.8.4.4 www.google.com                                  
              ; (1 server found)                                                              
              ;; global options: +cmd                                                         
              ;; Got answer:                                                                  
              ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 64095                       
              ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1            
                                                                                              
              ;; OPT PSEUDOSECTION:                                                           
              ; EDNS: version: 0, flags:; udp: 512                                            
              ;; QUESTION SECTION:                                                            
              ;www.google.com.                        IN      A                               
                                                                                              
              ;; ANSWER SECTION:                                                              
              www.google.com.         237     IN      A       172.217.9.68                    
                                                                                              
              ;; Query time: 14 msec                                                          
              ;; SERVER: 8.8.4.4#53(8.8.4.4)                                                  
              ;; WHEN: Wed Jun 05 05:42:48 Central Daylight Time 2019                         
              ;; MSG SIZE  rcvd: 59                                                           
              

              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

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

                Just to motivate you :

                Using a fresh install, adding 8.8.8.8 and 8.8.4.4 and activate Forwarding in the Resolver (or use the Forwarder) works direct.
                Same thing for OpenDNS - but you need an account, otherwise they will refuse DNS requests coming from you.

                I can't tell you from here how you managed to 'break' things ...

                Btw : asking for DNSSEC and forwarding .... that's probably a no-go and makes no sense.
                Compare your unbound settings with my unbound settings.

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

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

                  @Gertjan said in DNS Lookups failing:

                  Btw : asking for DNSSEC and forwarding .

                  Yeah while its borked to do that.. It wouldn't stop the queries.. It just is pointless and doesn't get you anything at all..

                  For dnssec to work, you either resolve yourself... Or you forward to a resolver doing it, and if that is the case no reason to ask for it.. It going to do it for you either way..

                  Using forwarder, and asking for dnssec is just pointless, extra dns traffic for no reason.

                  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

                  1 Reply Last reply Reply Quote 1
                  • B
                    bcruze
                    last edited by

                    who is the ISP. and is there network equipment in front of the pfsense router?

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

                      @bcruze said in DNS Lookups failing:

                      who is the ISP. and is there network equipment in front of the pfsense router?

                      Like a router upstream that accepts only DNS requests with it's LAN IP as destination, and no one else ? Yeah, might be possible - there are people doing the same thing with pfSEnse.

                      But I guess @pmrozik administers this upstream router device as well - so, ... he would (should !?) know that.
                      IF an up stream router exists ...

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

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

                        The first thing I would do is validate he can actually query 8.8.4.4 or not.. This is simple enough to do via dig or nslookup from any client..

                        If does not get an answer - then sniff on pfsense wan and validate the query did go upstream with his public IP as source, and no answer came back, 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

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

                          I just did that :

                          dig @8.8.4.4 test-domaine.fr ANY +short
                          

                          The answer came back .... and was not short.
                          8.8.4.4 is in business today, that's for sure.

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

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

                            Any is deprecated and really shouldn't be used any more. Many a site will not respond when asked for that.

                            But yeah I would think something really major would have to be going on for them not to be working.. Its an anycast address so even if one region of the world was down you should get an answer from another location, etc.

                            We really need some useful info from the OP if he wants our help.

                            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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