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    Cannot access pfsense from certain pcs

    Scheduled Pinned Locked Moved General pfSense Questions
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    • D
      Deadringers
      last edited by

      hi all,

      weird one here…

      I can access pfsense from my laptop, pc, a server and that's it!

      all other pcs and servers cannot access the web interface.

      A bit worrying as what if something happens to these 3 machines!

      thoughts?

      I've tried to increase the "max processes" to 10 but no luck.

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      • K
        kejianshi
        last edited by

        Are they all on the same LAN?  Are you using proxy or dansguardian or anything?

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        • D
          Deadringers
          last edited by

          @kejianshi:

          Are they all on the same LAN?  Are you using proxy or dansguardian or anything?

          all on the same lan, no proxy and no dansguard

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          • K
            kejianshi
            last edited by

            Thats very strange.  You shouldn't need more than 2 processes enables.
            Why you want everyone to be able to get there is beyond me though.

            Perhaps its a problem with those machines them selves?  AV/Firewall there?

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            • D
              Deadringers
              last edited by

              @kejianshi:

              Thats very strange.  You shouldn't need more than 2 processes enables.
              Why you want everyone to be able to get there is beyond me though.

              Perhaps its a problem with those machines them selves?  AV/Firewall there?

              I can't see any issues - tried disabling all firewalls and av still nothing?

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              • K
                kejianshi
                last edited by

                No clue - Times like this, I reinstall the pfsense from scratch.

                Its definitely not an issue I've ever heard of.

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                • johnpozJ
                  johnpoz LAYER 8 Global Moderator
                  last edited by

                  When you say they can not access  – do you mean they can not use the web gui, or they can not ping even or use the internet through it?  Assuming it is just gui thing.

                  What error do you get when try to hit the web gui?  Are you trying to use fqdn or IP address?  Are you using http or https on your gui.  Have you changed it to odd port?

                  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 2.7.2, 24.11

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                  • K
                    kejianshi
                    last edited by

                    Good point.  If you are using a domain name to access it vs an IP, this could be just a DNS issue.

                    (nice point - I'd assumed everyone would always use IP)

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                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator
                      last edited by

                      Yeah assuming what people do normally means what ass u me :)

                      If using pfsense as dns, makes sense to use IP since what if pfsense is not working correctly.. I'm thinking they are trying https and some of there boxes are not likely the cert or not seeing crl, etc.

                      Really helpful to know what error they are getting vs vague "cannot access the web interface"

                      As to no proxy – Did he actually verify in the browser settings?  Doubt it to be honest.

                      Quite possible machines are all infected running their web traffic through some proxy on the net ;)  We really have NOTHING to work with here.

                      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 2.7.2, 24.11

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                      • D
                        Deadringers
                        last edited by

                        @johnpoz:

                        When you say they can not access  – do you mean they can not use the web gui, or they can not ping even or use the internet through it?  Assuming it is just gui thing.

                        What error do you get when try to hit the web gui?  Are you trying to use fqdn or IP address?  Are you using http or https on your gui.  Have you changed it to odd port?

                        I only use the IP:
                        https://192.168.0.254/

                        They just cannot access the GUI.
                        They can access internet and all other services but not the GUI.

                        it just hangs there thinking about it and then gives an error message "webpage is not available"

                        interesting thing is it comes up with the little icon on the TAB to indicate it is the pfsense box (screen shot attached)

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                        • D
                          Deadringers
                          last edited by

                          @johnpoz:

                          Yeah assuming what people do normally means what ass u me :)

                          If using pfsense as dns, makes sense to use IP since what if pfsense is not working correctly.. I'm thinking they are trying https and some of there boxes are not likely the cert or not seeing crl, etc.

                          Really helpful to know what error they are getting vs vague "cannot access the web interface"

                          As to no proxy – Did he actually verify in the browser settings?  Doubt it to be honest.

                          Quite possible machines are all infected running their web traffic through some proxy on the net ;)  We really have NOTHING to work with here.

                          see my post below for the error I am getting.

                          and with regards to the proxy.
                          Yes I am sure as I set the PCs up.  Thanks for your concern and condescending tone however it really helps.  8)

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                          • johnpozJ
                            johnpoz LAYER 8 Global Moderator
                            last edited by

                            And are you using HTTPS?

                            I have the same error - because I am not running on https

                            But use http and works fine

                            minesameerror.png
                            minesameerror.png_thumb
                            worksgui.png
                            worksgui.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 24.11 | Lab VMs 2.7.2, 24.11

                            1 Reply Last reply Reply Quote 0
                            • D
                              Deadringers
                              last edited by

                              yes I only use HTTPS

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                              • johnpozJ
                                johnpoz LAYER 8 Global Moderator
                                last edited by

                                Well for some reason your browser doesn't like the cert, but I would think that would be a different error.  Or can not get there for some reason..  Have you tried http, its quite possible your not actually using https ;)  Which would seem like a logical thing to verify.

                                Have you sniffed at pfsense to see if request gets there?  You have any odd lan firewall rules?

                                You get the same type of error in different browser?

                                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 2.7.2, 24.11

                                1 Reply Last reply Reply Quote 0
                                • D
                                  Deadringers
                                  last edited by

                                  @johnpoz:

                                  Well for some reason your browser doesn't like the cert, but I would think that would be a different error.  Or can not get there for some reason..  Have you tried http, its quite possible your not actually using https ;)  Which would seem like a logical thing to verify.

                                  Have you sniffed at pfsense to see if request gets there?  You have any odd lan firewall rules?

                                  You get the same type of error in different browser?

                                  It is using https 100% sure.

                                  http has the same effect - no gui access.
                                  and just to test I even put in a LAN  rule to allow all traffic everywhere while testing this out.  no change

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                                  • D
                                    Deadringers
                                    last edited by

                                    @Deadringers:

                                    @johnpoz:

                                    Well for some reason your browser doesn't like the cert, but I would think that would be a different error.  Or can not get there for some reason..  Have you tried http, its quite possible your not actually using https ;)  Which would seem like a logical thing to verify.

                                    Have you sniffed at pfsense to see if request gets there?  You have any odd lan firewall rules?

                                    You get the same type of error in different browser?

                                    It is using https 100% sure.

                                    http has the same effect - no gui access.
                                    and just to test I even put in a LAN  rule to allow all traffic everywhere while testing this out.  no change

                                    And yes tested it on IE…same thing

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                                    • D
                                      doktornotor Banned
                                      last edited by

                                      @Deadringers:

                                      and just to test I even put in a LAN  rule to allow all traffic everywhere while testing this out.  no change

                                      Errr… and the rules in place before would be?! Diagnostics - States - Reset states or reboot.

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                                      • D
                                        Deadringers
                                        last edited by

                                        @doktornotor:

                                        @Deadringers:

                                        and just to test I even put in a LAN  rule to allow all traffic everywhere while testing this out.  no change

                                        Errr… and the rules in place before would be?! Diagnostics - States - Reset states or reboot.

                                        well by default I don't allow all kinds of traffic out - no point.

                                        rebooted the firewall already…did it again and still no access apart from the same 3 PCs!

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                                        • D
                                          doktornotor Banned
                                          last edited by

                                          Well, I'd suggest to post the rules and producing some basic diagnostics, such as ping/traceroute to the pfS IP, since we obviously are getting nowhere and there's apparently a lot of information hidden behind the scenes. Also there are these logs available on the firewall for a good reason.  :-*

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                                          • johnpozJ
                                            johnpoz LAYER 8 Global Moderator
                                            last edited by

                                            Did you sniff at pfsense? diag packet capture, or simple tcpdump from ssh or console.

                                            This is what I would do to verify traffic actually gets there.

                                            Again - maybe I missed it..  You can route your internet traffic through pfsense - just not load the web gui?

                                            As dok mentions – lets see pings, traceroute and the sniff at pfsense showing the connection from your browser..  Until we verify that pfsense saw the request and answered.. Its a browser/pc issue where the traffic never even gets to pfsense.

                                            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 2.7.2, 24.11

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