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

    dns resolver not working for dhcp clients

    Scheduled Pinned Locked Moved DHCP and DNS
    8 Posts 2 Posters 1.3k 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.
    • madfrog80M
      madfrog80
      last edited by

      Re: [SOLVED] DNS resolver- PFSENSE unable to resolve dns's

      Hello,
      after combing through tons of topics and articles, this seemed to be the closest to my problem.
      What i have is a 2.4.3-RELEASE-p1 (amd64)
      my issue is with dns resolving.
      What I ultimately want to accomplish is to block ads and in order to do that, i would need pfsense to handle dns queries for all my clients within the network.
      I have a simple setup.
      internet ---- cable modem ---- pfsense ---- lan
      at the moment i can resolve hostnames within pfsense. I ran the dns lookup tool.
      all clients can pick up ip. dhcp works.
      i can also see the gateway and dns is pointed to my pfsense ip address for all my clients within the network.
      dns resolver enabled
      listen port 53
      network/outgoing network interfaces all
      system domain local type zone transparent
      DNSSEC Enabled =Checked (i also disabled it to see if it had an impact)
      DNS Query Forwarding =Unchecked
      DHCP Registration =Checked
      Static DHCP= Checked
      openvpnclients=unchecked

      under dhcp services
      dhcp server lan interface =checked
      the rest is blank and default including dns server (by default it should pick up the ip address of pfsense)

      i installed 3 different boxes with a fresh pfsense each time and never got dns to work. i always had to put an external dns server.
      How do i get pfsense to resolve names and hopefully block ads for my dhcp clients?
      any type of help or direction is highly appreciated.
      thanks in advance...

      1 Reply Last reply Reply Quote 0
      • madfrog80M
        madfrog80
        last edited by

        in addition to my explanation.
        I have another box which i have installed recently which is 2.3.4 release p1 (i386). New version not supported apparently.
        exact same configuration as the previous box. I compared it each section one by one.
        on (i386) dns is working for both pfsense and for the dhcp clients. Just the way it is supposed to.
        The only difference i can think of is the version and also a package i had installed earlier (ntop) was not functioning on (amd64) so i removed the package. I assume that may have messed it up. Instead of a clean install, I am wondering if there is a shortcut fix to this problem.
        thanks again.

        1 Reply Last reply Reply Quote 0
        • madfrog80M
          madfrog80
          last edited by

          ok. Here is the update.
          I have a fresh install of 2.4.3 release p1 amd64
          i used the wizard on setup and at the moment;
          Clients picking up ip via dhcp are able to go online and use pfsense as dns server.
          However, when i created a vlan on the same interface, clients on vlan are picking up ip on designated vlan but cannot resolve. So i am back to where i started on vlan portion of the network. I can not get it to resolve using pfsense.
          What am i doing wrong?
          anyone?
          i see that my posts had some views but I had no response from anybody.
          any type of help would be appreciated.
          drop a line, say hi....

          1 Reply Last reply Reply Quote 0
          • madfrog80M
            madfrog80
            last edited by

            nevermind.
            fixed it.

            1 Reply Last reply Reply Quote 0
            • B
              biggestnoob
              last edited by

              @madfrog80 said in dns resolver not working for dhcp clients:

              nevermind.
              fixed it.

              Please, how?? I have the same issue. DNS does not work for DHCP-clients.

              1 Reply Last reply Reply Quote 0
              • madfrog80M
                madfrog80
                last edited by

                I am sorry, i do not have a quick fix solution for you. I had to backup the configuration and reset everything. You will have the option to reset if your pfsense box is hooked up to a monitor.
                What I can tell you is, my previous settings were not different than the settings after reset. So may be on my first install, I may have screwed up during ip assignment...(I still don't think so)
                Anyhow, I know it is not much but this is how I resolved the issue for me.
                I hope it helps.
                thanks

                1 Reply Last reply Reply Quote 0
                • madfrog80M
                  madfrog80
                  last edited by

                  @biggestnoob i for got to tag you on the previous post. :)☺

                  1 Reply Last reply Reply Quote 0
                  • B
                    biggestnoob
                    last edited by

                    Thank you for answering. Does not make sense, not in my configuration either. But I guess I have to give it a try...

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