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

    Internet on windows but not ubuntu bad pfsense configuration?

    Scheduled Pinned Locked Moved General pfSense Questions
    41 Posts 4 Posters 6.3k 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.
    • Raffi_R
      Raffi_ @Farisse
      last edited by

      I activated dns resolver with forwarding but still doesn't work.

      I try it with Chrome and i receive this error:
      6789f615-6acc-4bd2-b805-6d46109a08df-image.png

      Try it a second time. Once unbound caches it, it should come right up the second time.

      1 Reply Last reply Reply Quote 0
      • Raffi_R
        Raffi_ @stephenw10
        last edited by

        @stephenw10 said in Internet on windows but not ubuntu bad pfsense configuration?:

        You don't see localhost there so you probably have 'Do not use the DNS Forwarder/DNS Resolver as a DNS server for the firewall' set in System > General setup. That doesn't make much difference unless you have host overrides there the firewall should use.

        Steve

        Would dnsmaq use the local host as well or is that only the default for unbound?

        DaddyGoD 1 Reply Last reply Reply Quote 0
        • F
          Farisse @stephenw10
          last edited by Farisse

          @stephenw10 Its not after you told me i should probably have the localhost as respond i remembered i had in the beginning in general information the localhost and then not anymore. So i've add it back with the dns server (good or wrong way idk) But ly query is a lot faster now.
          9c593d97-30bd-4262-9b1c-0fda6f9bc8c3-image.png
          But the option "Do not use the DNS Forwarder/DNS Resolver as a DNS server for the firewall " is not set in.
          952c42a0-8e53-44fa-8e68-fb174493134d-image.png

          @Raffi_ I also tried it a second and third time, but no result. Or ... the same result.

          1 Reply Last reply Reply Quote 0
          • Raffi_R
            Raffi_
            last edited by Raffi_

            If you are using DNS resolver with forwarding mode, the first option will be the local host by default. There is no need to enter it again under DNS Server Settings in the General setup tab.

            Edit, something doesn't seem right with those 1ms query times. How would it go from 8 seconds to 1ms? I think this might be the DNS lookup GUI bug I've seen in the past.

            Run those dig commands from pfSense instead.
            Diagnostics/ Command Prompt
            dig @172.20.0.253 google.com
            dig @172.20.0.254 google.com

            I think those might give you the real results.

            F 1 Reply Last reply Reply Quote 0
            • DaddyGoD
              DaddyGo @Raffi_
              last edited by

              @Raffi_

              just an idea
              it would be worthwhile to look at and compare these:

              Windows: https://docs.microsoft.com/en-us/previous-versions//cc977482(v=technet.10)?redirectedfrom=MSDN

              Linux: /etc/resolv.conf

              search domain.net
              option timeout:1
              nameserver 1.1.1.1
              nameserver 2.2.2.2
              nameserver 3.3.3.3

              or something like that

              Cats bury it so they can't see it!
              (You know what I mean if you have a cat)

              1 Reply Last reply Reply Quote 0
              • F
                Farisse @Raffi_
                last edited by

                @Raffi_
                b958cd9d-7c01-48ee-9d97-6ea2e1a68972-image.png 710c96f0-0f10-41a3-8146-01e4c9b6f1cd-image.png

                I removed the localhost from the general setting and these are the results

                @DaddyGo It was a good suggestion, but unfortunately /etc/resolv.conf is managed by systemd-resolved who is used by netplan /etc/netplan/*.yaml

                1 Reply Last reply Reply Quote 0
                • Raffi_R
                  Raffi_
                  last edited by Raffi_

                  Interesting, well the two DNS servers seem to be responding better now. That could also be because they are caching.

                  How is Ubuntu getting its interface settings? Is it statically assigned in Ubuntu or is it set to automatic (DHCP)? There were no leases in your DHCP list.

                  1 Reply Last reply Reply Quote 0
                  • F
                    Farisse
                    last edited by Farisse

                    I assigned static ip through /etc/netplan/01-network-manager-all.yaml

                    8289bd18-79be-4859-a103-cc2f027aab86-image.png

                    Everything seems good to me....

                    Edit, maybe an non relevant information, i can not ping the other vms in the dmz network. But my other vms can ping my ubuntu vm. Could it be something to do with routing ?

                    1 Reply Last reply Reply Quote 0
                    • Raffi_R
                      Raffi_
                      last edited by

                      Try running a packet capture on the DMZ of pfSense.
                      Diagnostics/ Packet Capture
                      Select DMZ, then in Count enter a very high value such as 10000. You can enter 0 but don't forget to stop the capture manually otherwise it will run a continuous capture and it can become a problem.

                      Download the capture data to wireshark and check for DNS info.

                      Dumb question, but have you tried to ping 8.8.8.8 from ubuntu? Does that work or is that failing as well?

                      F 2 Replies Last reply Reply Quote 0
                      • F
                        Farisse @Raffi_
                        last edited by

                        @Raffi_ said in Internet on windows but not ubuntu bad pfsense configuration?:

                        Dumb question, but have you tried to ping 8.8.8.8 from ubuntu? Does that work or is that failing as well?

                        Nope doesn't work because its blocked by the school.

                        I'll try the packet in a few minutes

                        Raffi_R 1 Reply Last reply Reply Quote 0
                        • Raffi_R
                          Raffi_ @Farisse
                          last edited by

                          @Farisse said in Internet on windows but not ubuntu bad pfsense configuration?:

                          @Raffi_ said in Internet on windows but not ubuntu bad pfsense configuration?:

                          Dumb question, but have you tried to ping 8.8.8.8 from ubuntu? Does that work or is that failing as well?

                          Nope doesn't work because its blocked by the school.

                          I'll try the packet in a few minutes

                          ICMP is blocked or google DNS server specifically is blocked?

                          1 Reply Last reply Reply Quote 0
                          • F
                            Farisse
                            last edited by

                            ICMP I guess. I can ping outside the network but not 8.8.8.8 or 8.8.4.4 I wont recieve any result wit this commands i began the ping on ubuntu and then on the windows machine who got internet:

                            086ed859-11b6-4a63-b7b7-8e99662291b9-image.png

                            1 Reply Last reply Reply Quote 0
                            • F
                              Farisse @Raffi_
                              last edited by

                              @Raffi_ said in Internet on windows but not ubuntu bad pfsense configuration?:

                              Select DMZ, then in Count enter a very high value such as 10000. You can enter 0 but don't forget to stop the capture manually otherwise it will run a continuous capture and it can become a problem.
                              Download the capture data to wireshark and check for DNS info.

                              So apparently my ubuntu machine does not send any dns request :

                              2225e6fe-06a3-4207-82a3-72f4b6608b51-image.png

                              Raffi_R 1 Reply Last reply Reply Quote 0
                              • Raffi_R
                                Raffi_ @Farisse
                                last edited by

                                @Farisse said in Internet on windows but not ubuntu bad pfsense configuration?:

                                So apparently my ubuntu machine does not send any dns request :

                                2225e6fe-06a3-4207-82a3-72f4b6608b51-image.png

                                That's not good. Is it even able to talk to pfSense at all? Can you ping pfSense (192.168.1.1) from Ubuntu?

                                1 Reply Last reply Reply Quote 0
                                • F
                                  Farisse
                                  last edited by

                                  Yup but not able to ping windows machine

                                  709f9d29-bf60-4c42-92a0-401482698b4d-image.png

                                  Raffi_R 1 Reply Last reply Reply Quote 0
                                  • Raffi_R
                                    Raffi_ @Farisse
                                    last edited by

                                    @Farisse said in Internet on windows but not ubuntu bad pfsense configuration?:

                                    Yup but not able to ping windows machine

                                    709f9d29-bf60-4c42-92a0-401482698b4d-image.png

                                    It can't ping Windows because by default Windows does not respond to ping. That has to be manually enabled in Windows. It is responding to pfSense though. So at least there is some sign of life there.

                                    1 Reply Last reply Reply Quote 0
                                    • F
                                      Farisse
                                      last edited by

                                      Damn forgot to disable fw on this windows machine. >.<"

                                      So apparently I don't know why, I suddenly have internet on my ubuntu machine.

                                      I did not change anything i've reset my ubuntu vm twice to be sure and it seems to work. What the hell is going on here :o i think i'm losing my mind

                                      Raffi_R DaddyGoD 2 Replies Last reply Reply Quote 0
                                      • Raffi_R
                                        Raffi_ @Farisse
                                        last edited by

                                        @Farisse said in Internet on windows but not ubuntu bad pfsense configuration?:

                                        Damn forgot to disable fw on this windows machine. >.<"

                                        So apparently I don't know why, I suddenly have internet on my ubuntu machine.

                                        I did not change anything i've reset my ubuntu vm twice to be sure and it seems to work. What the hell is going on here :o i think i'm losing my mind

                                        lol don't touch it. You have a number of things which don't make sense. Like for instance the ping to pfSense is taking on average 600ms. In reality it should be more like 6ms. You have two extra zeros of delay. That's not good.

                                        1 Reply Last reply Reply Quote 1
                                        • F
                                          Farisse
                                          last edited by Farisse

                                          Haha i won't but hope it will work when i will need it ! :D
                                          Apparently even this is fixed. :

                                          192.168.1.1 is my gateway to pfsense and 192.168.0.50 is pfsense ip..

                                          0142f8fb-0651-4261-962b-0d1eea4fd6c6-image.png

                                          I really hope it will stay working as i need it crossfingers

                                          Many thanks for your help guys!

                                          1 Reply Last reply Reply Quote 0
                                          • DaddyGoD
                                            DaddyGo @Farisse
                                            last edited by

                                            @Farisse said in Internet on windows but not ubuntu bad pfsense configuration?:

                                            Damn forgot to disable fw on this windows machine. >.<"

                                            you don’t have to disable it all, just use this 😉

                                            netsh advfirewall firewall add rule name="ICMP Allow incoming V4 echo request" protocol=icmpv4:8,any dir=in action=allow

                                            Cats bury it so they can't see it!
                                            (You know what I mean if you have a cat)

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