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    502 Bad Gateway, nginx

    Scheduled Pinned Locked Moved General pfSense Questions
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    • A
      Aseknet @Aseknet
      last edited by Aseknet

      Hi Guys,

      Everything seemed to work until today when I logged on pfSense.
      After some minutes I got a freeze, 502 Bad Gateway, this is what the logs say:
      Seems like the widgets are involved.

      Replaced the actual IPs with ClientIP and pfSenseIP.

      Nov 18 17:06:30 pfSense nginx: 2021/11/18 17:06:30 [error] 83498#100152: *2302 connect() to unix:/var/run/php-fpm.socket failed (61: Connection refused) while connecting to upstream, client: ClientIP, server: , request: "GET /widgets/widgets/snort_alerts.widget.php?getNewAlerts=1637251590358 HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fpm.socket:", host: "pfSenseIP", referrer: "http://pfSenseIP/"

      Nov 18 17:06:30 pfSense nginx: ClientIP - - [18/Nov/2021:17:06:30 +0100] "GET /widgets/widgets/snort_alerts.widget.php?getNewAlerts=1637251590358 HTTP/1.1" 502 552 "http://pfSenseIP/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36"

      Nov 18 17:06:35 pfSense nginx: 2021/11/18 17:06:35 [error] 83498#100152: *2302 connect() to unix:/var/run/php-fpm.socket failed (61: Connection refused) while connecting to upstream, client: ClientIP, server: , request: "GET /widgets/widgets/pfblockerng.widget.php?getNewWidget=1637251595359 HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fpm.socket:", host: "pfSenseIP", referrer: "http://pfSenseIP/"

      Nov 18 17:06:35 pfSense nginx: ClientIP - - [18/Nov/2021:17:06:35 +0100] "GET /widgets/widgets/pfblockerng.widget.php?getNewWidget=1637251595359 HTTP/1.1" 502 552 "http://pfSenseIP/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36"

      And to resolve this the solution was:
      Using SSH and select option “16. Restart PHP-FFM”
      Usually this works but sometimes a reboot of pfSense is needed.

      Thanks,
      Asknet

      1 Reply Last reply Reply Quote 1
      • B
        Bambos
        last edited by

        Hello everyone,

        i run to the same problem with version 2.6.0.
        502 bad gateway nginx.

        Do we have some updates about that ? what is recommended ?

        A 1 Reply Last reply Reply Quote 0
        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          Upgrade to the current version, 2.7.2.

          1 Reply Last reply Reply Quote 1
          • A
            Aseknet @Bambos
            last edited by Aseknet

            Sadly I never got around this after a huge amount of time for a fix, not even in 2.7.2 so I turned to OPNsense instead of waiting for 2.8.0.
            Missing some features from pfSense, but now I don’t have issues anymore to access the interface.
            Loved pfSense and the community but this was a big issue for me :(

            1 Reply Last reply Reply Quote 1
            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by

              Hmm, odd. We don't really see that in 2.7.2 any longer. I used to be a much bigger issue. It pretty much always implies some php process running away though.

              1 Reply Last reply Reply Quote 0
              • V
                vector88
                last edited by vector88

                Hello @stephenw10 and everyone.

                I've recently installed Pfsense 2.7.2 and kept on getting bad gateway 502.

                while troubleshooting I tried reverting back to 2.7.0 and after doing so, my pfsense IP no longer gave me 502, but after updating again to 2.7.2 i kept getting 502.

                I tried restarting php-fpm and it loads webgui before it says 502 again.

                I reverted to 2.7.0 and webgui is now working again.

                The only problem I have is I'm unable to use pkg manager due to version mismatch :(

                Can anyone help?

                Thanks everyone,
                Vector

                1 Reply Last reply Reply Quote 0
                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  If you see 502 errors it's almost always because php failed for some reason. You should see something logged.

                  V 1 Reply Last reply Reply Quote 0
                  • V
                    vector88 @stephenw10
                    last edited by

                    @stephenw10
                    I do see things get logged after accessing: tail -f /var/log/system_general.log

                    It says: "[ERROR] 556088#100299 *88 connect () to unix: var/run/php-fpm.socket failed (61: connection refused) while connecting to upstream, cleint: [PFSENSE IP] server:

                    And while running tail netstat -an | grep LISTEN
                    It listens on 127.0.0.1.953.

                    Would you please help?

                    1 Reply Last reply Reply Quote 0
                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      But nothing in the main system log?

                      How is it configured? What are you running on?

                      V 1 Reply Last reply Reply Quote 0
                      • V
                        vector88 @stephenw10
                        last edited by

                        @stephenw10
                        I'm sorry, I'm a beginner.

                        Would you please explain further?

                        1 Reply Last reply Reply Quote 0
                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          I mean a basic 2.7.2 install will run without php issues. So what configuration have to done to yours. Something there is causing it a problem. Maybe some package you added is exhausting the RAM for example.

                          V 1 Reply Last reply Reply Quote 0
                          • V
                            vector88 @stephenw10
                            last edited by vector88

                            @stephenw10
                            I get your point; however, this issue occurs as soon as I do a clean install of 2.7.2
                            Without changing anything in the configuration at all.

                            I just set the IPs and the interfaces. pfsense WAN: 192.168.1.10 ISP router: 192.168.1.1 Pfsense LAN : 10.27.27.1

                            **Edit

                            I didn't add any packages and I have 16GB of RAM

                            V stephenw10S 2 Replies Last reply Reply Quote 0
                            • stephenw10S
                              stephenw10 Netgate Administrator
                              last edited by

                              Hmm, odd. What hardware is it installed on?

                              You are connecting to it from a client on the LAN?

                              1 Reply Last reply Reply Quote 0
                              • V
                                vector88 @vector88
                                last edited by vector88

                                @vector88

                                It's on Dell Latitude 7490 i7-8650U CPU
                                And the installation was USB memstick.

                                Again, this issue only occurred on 2.7.2 and 2.7.1.
                                2.7.0 worked fine, and I had to update it because the package manager didn't work :(

                                Yes, the client is on the LAN but even when I try to access WebGui from the ISP's side it returns the same 502.

                                1 Reply Last reply Reply Quote 0
                                • stephenw10S
                                  stephenw10 Netgate Administrator @vector88
                                  last edited by

                                  @vector88 said in 502 Bad Gateway, nginx:

                                  this issue occurs as soon as I do a clean install of 2.7.2
                                  Without changing anything in the configuration at all.

                                  To be clear that's with the default config or after importing your config that works in 2.7.1?

                                  V 1 Reply Last reply Reply Quote 0
                                  • V
                                    vector88 @stephenw10
                                    last edited by

                                    @stephenw10
                                    Default config, just after assigning the WAN, LAN for Pfsense and connecting Pfsense LAN to a switch and an ethernet from the switch directly into my laptop and then 502 everywhere.

                                    1 Reply Last reply Reply Quote 0
                                    • stephenw10S
                                      stephenw10 Netgate Administrator
                                      last edited by

                                      Does it allow you to connect at all? To complete the setup wizard even?

                                      V 1 Reply Last reply Reply Quote 0
                                      • V
                                        vector88 @stephenw10
                                        last edited by vector88

                                        @stephenw10
                                        Yes, just after going through the wizard, right after finishing and entering the same config on the wizard and finishing..... Reboots..... And then 502

                                        1 Reply Last reply Reply Quote 0
                                        • stephenw10S
                                          stephenw10 Netgate Administrator
                                          last edited by

                                          It shouldn't reboot after completing the wizard. Did you set some interface specific value?

                                          1 Reply Last reply Reply Quote 0
                                          • V
                                            vector88
                                            last edited by

                                            Yes it shouldn't reboot. But after finishing the wizard it does the same thing, I tried rebooting as an extra step

                                            1 Reply Last reply Reply Quote 0
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