Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    DNS Override not working as expected?

    Scheduled Pinned Locked Moved DHCP and DNS
    17 Posts 5 Posters 2.2k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • Z Offline
      zarky
      last edited by

      @doktornotor:

      No idea what's this topic shift to "cannot get it to pass traffic". Totally off-topic.

      I don't see why that would be off topic. I made a change to my DNS setup, and it's not working as expected.
      I'm just trying to find out why this isnt working. Is my DNS override config correct?
      Or is there something I'm missing?

      I feel like this should be simpler than it is.

      dig gives me the correct response no matter which machine I test it from, but nothing else can seem to resolve the hostname.
      Why?

      1 Reply Last reply Reply Quote 0
      • D Offline
        doktornotor Banned
        last edited by

        Sigh. You failed to produce any valid test for starters. Testing with "localhost" as DNS server on some third machine, I cannot see how on earth you expect those overrides working. And yeah, it is dead simple - when you have a clue about what you are doing.

        Point your machines to pfSense box as DNS if you want to test DNS overrides!

        1 Reply Last reply Reply Quote 0
        • Z Offline
          zarky
          last edited by

          @doktornotor:

          Sigh. You failed to produce any valid test for starters. Testing with "localhost" as DNS server on some third machine, I cannot see how on earth you expect those overrides working. And yeah, it is dead simple - when you have a clue about what you are doing.

          Point your machines to pfSense box as DNS if you want to test DNS overrides!

          Well, if my client DNS config is an issue, then why would it reflect the changes I make on the router when I run a dig? I'm serious, this part is confusing me.

          I have configured it as the DNS server and ran a new dig:

          human@luna:~> dig zoidberg.local
          
          ; <<>> DiG 9.9.4-rpz2.13269.14-P2 <<>> zoidberg.local
          ;; global options: +cmd
          ;; Got answer:
          ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16038
          ;; flags: qr aa rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
          
          ;; QUESTION SECTION:
          ;zoidberg.local.                        IN      A
          
          ;; ANSWER SECTION:
          zoidberg.local.         1       IN      A       10.0.0.39
          
          ;; Query time: 1 msec                                                                    
          ;; SERVER: 10.0.0.1#53(10.0.0.1)                                                         
          ;; WHEN: Sat Apr 25 05:44:34 EDT 2015                                                    
          ;; MSG SIZE  rcvd: 48   
          

          And yet, I still get the exact same result, for both the dig, and the ping:

          human@luna:~> ping zoidberg.local
          ping: unknown host zoidberg.local
          
          

          So now that we're past that sticking point. How do I get it to do what i want it to do?

          1 Reply Last reply Reply Quote 0
          • D Offline
            doktornotor Banned
            last edited by

            Reboot the broken host. Does not work? Debug somewhere else (your distro forums, or whatever.) Not a pfSense issue. Perhaps you are running mDNS/Avahi or whatever, in which case .local is a completely disastrous choice.

            1 Reply Last reply Reply Quote 0
            • Z Offline
              zarky
              last edited by

              @doktornotor:

              Reboot the broken host. Does not work? Debug somewhere else (your distro forums, or whatever.) Not a pfSense issue. Perhaps you are running mDNS/Avahi or whatever, in which case .local is a completely disastrous choice.

              Rebooting doesnt help. Results are host-independent. Same result on 3 different machines running 2 different operating systems.
              As for Avahi or mDNS, I have no idea unless they are enabled by default.

              1 Reply Last reply Reply Quote 0
              • D Offline
                doktornotor Banned
                last edited by

                Well, you can test with some other override such as foo.bar.baz.lan or whatever outside of .local. Again, the override on pfSense is working perfectly fine.

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

                  ok for startes .local is a HORRIFIC choice for a domain being for starters apple defaults to using it, and its single label as another.

                  But just to walk through how this works unless you got some apple devices??  I really would pick something better for your local domain vas local – I use local.lan for example

                  But here I created the over ride, I can then ping it and it resolves, I can do a nslookup on it, I can dig for it.  This is from a windows machine using pfsense as its dns.  I can also do the same from linux machine also again using pfsense as dns.

                  resolveoverride.png
                  resolveoverride.png_thumb
                  linuxlookup.png
                  linuxlookup.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 25.07.1 | Lab VMs 2.8.1, 25.07.1

                  1 Reply Last reply Reply Quote 0
                  • Z Offline
                    zarky
                    last edited by

                    @johnpoz:

                    ok for startes .local is a HORRIFIC choice for a domain being for starters apple defaults to using it, and its single label as another.

                    But just to walk through how this works unless you got some apple devices??  I really would pick something better for your local domain vas local – I use local.lan for example

                    But here I created the over ride, I can then ping it and it resolves, I can do a nslookup on it, I can dig for it.  This is from a windows machine using pfsense as its dns.  I can also do the same from linux machine also again using pfsense as dns.

                    No apple devices on my network.
                    And, as I said in my initial post, .local is not my choice. That is the domain on my work network and I am not authorized to change it. My home domain is space.subspace.
                    I'll test it with another fake hostname and see if it'll work then.

                    If it cannot work, then it cannot work, i'll give up and try to figure something else out.

                    EDIT: Looks like it's the .local domain. Works with any other domain i use but .local.
                    I guess i'm going to find another way to do this. Perhaps with IP addresses instead.  Oh well. Thanks for the help.

                    1 Reply Last reply Reply Quote 0
                    • GruensFroeschliG Offline
                      GruensFroeschli
                      last edited by

                      This is a linux computer i assume?

                      This might help you:
                      http://www.cyberciti.biz/faq/howto-change-dns-search-order-in-linux/

                      If you are using mdns to resolve names then this will catch everything .local and never ask the pfSense.

                      We do what we must, because we can.

                      Asking questions the smart way: http://www.catb.org/esr/faqs/smart-questions.html

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

                        and again I showed you it works with .local just fine..  See my examples - so you go something else going on..  dns doesn't really care - if your doing the query to the name server and it has that record.. There you go..  It gives you the answer.

                        Do you have some sort of search domain with local that is auto adding that when you do your pings so your doing something like search.local.local – why don't you do a simple sniff on your machine that is not resolving it via ping and see what query is doing.

                        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 25.07.1 | Lab VMs 2.8.1, 25.07.1

                        1 Reply Last reply Reply Quote 0
                        • First post
                          Last post
                        Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.