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    DHCP wont start after a power outage

    Scheduled Pinned Locked Moved DHCP and DNS
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    • ofir29200O Offline
      ofir29200 @bingo600
      last edited by

      @bingo600 I just restored an old backup I have from a month ago (it's practically the same, but without my new ssl certificates)
      And I still got the same thing in the logs of the DHCP when I try to start it

      bingo600B 1 Reply Last reply Reply Quote 0
      • bingo600B Offline
        bingo600 @ofir29200
        last edited by bingo600

        @ofir29200
        I then have no idea, what to do then.
        What version of pfSense have you (re)installed.

        And maybe a little bit more of the log would be helpfull.

        Maybe ... (I don't use pfSense DHCP server at home , just relay .. So just an idea)
        You could also "Edit out" the DHCPD section , before restoring the config:

        Open your config file , and delete everything in between the below tags

        	<dhcpd>
        
        	</dhcpd>
        	<dhcpdv6>
        
        	</dhcpdv6>
        

        Then restore ....

        Now you should be able to redo all dhcp from "scratch"

        If you find my answer useful - Please give the post a šŸ‘ - "thumbs up"

        pfSense+ 23.05.1 (ZFS)

        QOTOM-Q355G4 Quad Lan.
        CPUĀ  : Core i5 5250U, Ram : 8GB Kingston DDR3LV 1600
        LANĀ  : 4 x Intel 211, DiskĀ  : 240G SAMSUNG MZ7L3240HCHQ SSD

        ofir29200O 1 Reply Last reply Reply Quote 0
        • ofir29200O Offline
          ofir29200 @bingo600
          last edited by

          @bingo600 I have pfsense 2.6.0 on FreeBSD 12.3

          I tried your suggestion to clean the DHCP from the config, but after I reconfigured the DHCP for my 2 interfaces, it did not work, and it still showed me the same thing in the logs.

          1 Reply Last reply Reply Quote 0
          • GertjanG Offline
            Gertjan @ofir29200
            last edited by

            This :

            @ofir29200 said in DHCP wont start after a power outage:

            Jun 25 23:04:20 dhcpd 52549 can't parse standard name service updater!

            comes from this https://github.com/isc-projects/dhcp/blob/31e68e5e3b863a4859562e0bb808888d74af7497/server/dhcpd.c

            Are you using nsupdate == you've instructed dhcpd to update a DNS zone when a lease is handed out ?

            Image :

            c38eda11-b313-4168-bf6c-42670cc20a31-image.png

            disable that part for a while.

            Also check /var/dhcpd/etc/dhcpd.conf for the offending line.

            Btw : The title : "DHCP wont start after a power outage " : you mean the DHCP server dhcpd, not the DHCP-client (on the WAN interface), right ?

            No "help me" PM's please. Use the forum, the community will thank you.
            Edit : and where are the logs ??

            ofir29200O 1 Reply Last reply Reply Quote 1
            • ofir29200O Offline
              ofir29200 @Gertjan
              last edited by

              @gertjan yea, I mean the DHCP Server.

              As for my problem, I managed to solve it.
              After thinking about it, I factory reset pfsense, and set I up again without restoring, but for my surprise it won't start after a factory reset.
              And now, after changing to a brand new VHD file, and reinstalling pfsense again, and restoring the original config I tried to restore before this post, and now everything works.
              As for @Gertjan advice, I have ordered an UPS for my server. Does anyone have a solution for making windows shut down the VM before shutting down windows?

              bmeeksB GertjanG 2 Replies Last reply Reply Quote 0
              • bmeeksB Offline
                bmeeks @ofir29200
                last edited by bmeeks

                @ofir29200 said in DHCP wont start after a power outage:

                Does anyone have a solution for making windows shut down the VM before shutting down windows?

                A quick Google search turned up a number of links with examples. Here is one of them: http://woshub.com/hyper-v-vm-automatic-startup-boot-order/.

                Note this only works if you are doing a normal shutdown of your Windows Hyper-V host. If the host loses power, then there is no automatic shutdown of the VMs. That's why it was suggested to get a UPS and configure it to signal Windows when on battery and the battery is about to expire (usually via a USB connection between the Windows host and the UPS). The UPS monitoring daemon in Windows will then signal the Hyper-V host to begin a normal controlled shutdown. That will in turn trigger the settings above to shutdown all the VMs before shutting down the Hyper-V host.

                ofir29200O 1 Reply Last reply Reply Quote 0
                • ofir29200O Offline
                  ofir29200 @bmeeks
                  last edited by

                  @bmeeks thank you!

                  1 Reply Last reply Reply Quote 0
                  • GertjanG Offline
                    Gertjan @ofir29200
                    last edited by Gertjan

                    @ofir29200 said in DHCP wont start after a power outage:

                    Does anyone have a solution for making windows shut down the VM before shutting down windows?

                    Yep, I'm using it.

                    See here : https://networkupstools.org/projects.html#_a_href_http_sourceforge_net_projects_winnutclient_windows_nut_client_a

                    I've used the older Windows NUT client, and now testing WinNUT-Client

                    Edit :

                    9eeb9bfa-b0aa-4449-9a12-55123d52b372-image.png

                    No "help me" PM's please. Use the forum, the community will thank you.
                    Edit : and where are the logs ??

                    1 Reply Last reply Reply Quote 0
                    • ofir29200O Offline
                      ofir29200
                      last edited by

                      well, it happened again!
                      but this time, the whole VM got stuck, so I had to reset it, and now I have to reinstall everything again...

                      Does anyone have a fix for this?

                      GertjanG 1 Reply Last reply Reply Quote 0
                      • GertjanG Offline
                        Gertjan @ofir29200
                        last edited by Gertjan

                        @ofir29200

                        Did you test ?

                        I've been running pfSense in a VM for a couple of years @home.
                        The host was a simple W10 Pro using the build in Hyper-V

                        The host was using the old WINNUT. I'm using the newer, shown above, since a couple of weeks.
                        Weather in France gave the the opportunity to test this set-up : it shuts down the system just fine.

                        And, I presume, as I never really tested it : This is how it should work :

                        @bmeeks said in DHCP wont start after a power outage:

                        The UPS monitoring daemon in Windows will then signal the Hyper-V host to begin a normal controlled shutdown. That will in turn trigger the settings above to shutdown all the VMs before shutting down the Hyper-V host.

                        When a (host) OS receives a shut down command, all running services and programs will receive a shut down down command.
                        This will include the Hyper-V process. So it should 'warn' it's VMs. The VL OS, pfense, in this case, will receive the event and proceed with a shut down.
                        Easy to test of this is the case : open a console, SSH or even the Hyper Console, and look at the command line. System shut down commands are broadcast on the command line.

                        You could also install the NUT package in pfSense, have it listening to a network 'UPS source', and have it shut down in 30 seconds.
                        Use also (see above) WINNUT on the host OS system, and have that one shut down in 60 seconds.
                        And as usual : test your set up.

                        A corrupted VM : I never manage to break a VM ...

                        @ofir29200 said in DHCP wont start after a power outage:

                        Does anyone have a fix for this?

                        A fix ?
                        Well, maybe, as soon as some one knows what is broken ;)

                        No "help me" PM's please. Use the forum, the community will thank you.
                        Edit : and where are the logs ??

                        ofir29200O 1 Reply Last reply Reply Quote 0
                        • ofir29200O Offline
                          ofir29200 @Gertjan
                          last edited by

                          @gertjan well, I don't have a UPS yet, I ordered one and I am still waiting for it to arrive

                          GertjanG 1 Reply Last reply Reply Quote 0
                          • GertjanG Offline
                            Gertjan @ofir29200
                            last edited by

                            @ofir29200

                            Well, if your power goes down often, or is just plain bafd, you can't really 'work' with anything that is a "computer".
                            With computer I means : a device with a disk and a complex file system.
                            When the file system goes bad, you can loose its content.

                            No "help me" PM's please. Use the forum, the community will thank you.
                            Edit : and where are the logs ??

                            ofir29200O 1 Reply Last reply Reply Quote 0
                            • ofir29200O Offline
                              ofir29200 @Gertjan
                              last edited by

                              @gertjan I had a power outage at the beginning of 2020, and my windows 10 PC was running 1 year straight without a power outage (but then it became unresponsive, so I had to reboot it...)

                              GertjanG 1 Reply Last reply Reply Quote 0
                              • GertjanG Offline
                                Gertjan @ofir29200
                                last edited by

                                @ofir29200 said in DHCP wont start after a power outage:

                                10 PC was running 1 year straight without a power outage (but then it became unresponsive, so I had to reboot it...)

                                That's pretty darn good for a consumer grade desktop OS.
                                Still, as this is consumer desktop OS, after the reboot I would bet heavily on "issues" after such a period.
                                You were also skipping major security updates .... that's something I wouldn't even dare to do.

                                No "help me" PM's please. Use the forum, the community will thank you.
                                Edit : and where are the logs ??

                                1 Reply Last reply Reply Quote 0
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