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    Internet on windows but not ubuntu bad pfsense configuration?

    Scheduled Pinned Locked Moved General pfSense Questions
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    • DaddyGoD
      DaddyGo @Raffi_
      last edited by

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

      Woaw 8 seconds for a query could be your issue. Those DNS servers are used only for this DMZ?

      I thought I would note this too, but I rather skipped it, hihihihhi ๐Ÿ‘ ๐Ÿ˜‰

      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 1
      • 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

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                  • 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?

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                            • 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?

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                                  • 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.

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                                      • 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!

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