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    Syslog service in pfSense v2.8.1 often stop itself

    Scheduled Pinned Locked Moved General pfSense Questions
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    • A Offline
      aldomoro
      last edited by

      Hi

      We use Graylog as remote syslog. If server with Graylog has outage, e.g. is restarted due to updates, syslogd is stopped in pfSense 2.8.1. We did not have this issue in v2.8.0.

      Aldomoro

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

        Yes, that's the bug discussed here. The workaround rules will prevent it. https://redmine.pfsense.org/issues/16362#note-5

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        • provelsP Offline
          provels @aldomoro
          last edited by

          @aldomoro Possibly the best use of Service Watchdog. Maybe the only one! :)

          Peder

          MAIN - pfSense+ 25.07.1-RELEASE - Adlink MXE-5401, i7, 16 GB RAM, 64 GB SSD. 500 GB HDD for SyslogNG
          BACKUP - pfSense+ 23.01-RELEASE - Hyper-V Virtual Machine, Gen 1, 2 v-CPUs, 3 GB RAM, 8GB VHDX (Dynamic)

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          • G Offline
            geovaneg
            last edited by geovaneg

            Hi,

            Same problem here:

            "Nov 2 22:00:02 pfsense syslogd: sendto: Connection refused" (system.log)

            PfSense CE 2.8.1, remote logging enabled.

            Anothers instances 2.8 running OK.

            Workaround: whatchdog

            Thanks.

            Geovane

            1 Reply Last reply Reply Quote 0
            • T Offline
              tyros
              last edited by

              Same problem here on 2.8.1

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

                Applying the workaround firewall rules will prevent it seeing the refusals so will not stop.

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                • G Offline
                  geovaneg
                  last edited by

                  Hi,

                  Apparently the rule isn't working because the traffic counters aren't incrementing. There's a "let out anything IPv4 from firewall host itself" rule with higher precedence that seems to be capturing UDP traffic to the remote syslog server, even though the new rule is of the "floating" type.

                  @28 pass out inet all flags S/SA keep state (if-bound) allow-opts label "let out anything IPv4 from firewall host itself" ridentifier 1000003613
                  @46 pass quick inet proto udp from (self:3) to 10.0.1.19 no state label "USER_RULE: rule to avoid syslog stop bug" label "id:1762800608" ridentifier 1762800608
                  
                  

                  Geovane

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                  • M Offline
                    mcury Rebel Alliance @geovaneg
                    last edited by

                    @geovaneg said in Syslog service in pfSense v2.8.1 often stop itself:

                    Apparently the rule isn't working because the traffic counters aren't incrementing.

                    Yeap, they should increment.

                    82800c5e-e2fa-443d-966f-daf60c958949-image.png

                    dead on arrival, nowhere to be found.

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                    • G Offline
                      geovaneg
                      last edited by

                      This is a VPN server located in the DMZ... It has no LAN interface, only a WAN and IPSEC interface, and the counters are not incrementing despite continuous traffic to the log server.

                      be345213-0d0e-407e-b226-9fdece1e5073-image.png

                      I might be forgetting something obvious, but I reviewed the settings and tested it more than twice.

                      Geovane

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                      • G Offline
                        geovaneg
                        last edited by

                        In any case, the watchdog isn't the perfect solution, but it did the job.

                        thanks

                        Geovane

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                        • stephenw10S Offline
                          stephenw10 Netgate Administrator
                          last edited by

                          Looks like you might have the source port set to 514 instead of the destination.

                          In your first screenshot it's not shown as an OUT rule also but it looks like you corrected that.

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                          • T Offline
                            taz3146
                            last edited by

                            Same ongoing issue, remote syslog enabled, it seems rather random, but mostly when the logging machine is down, which is a linux vm on proxmox host.

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                            • B Offline
                              Bria1972 @stephenw10
                              last edited by

                              @slu said in Syslog service in pfSense v2.8.1 often stop itself:

                              @jrey years ago there was a p1 release:
                              https://docs.netgate.com/pfsense/en/latest/releases/2-3-5-p1.html

                              Thanks for the source

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