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    KEA DHCP missing "Register DHCP leases in DNS Resolver..."

    Scheduled Pinned Locked Moved DHCP and DNS
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator @noloader
      last edited by johnpoz

      @noloader that has nothing to do with the ntp settings in the dhcpd settings... By default there is nothing in there.. Shoot most clients don't ever use those even if you hand them out.

      Don't confuse ntp inner working with a completely different thing dhcpd..

      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 2.8, 24.11

      1 Reply Last reply Reply Quote 0
      • P
        pvk1 @noloader
        last edited by

        @noloader You are taking this too far. I just pasted an FQDN in to give an example. Try it out yourself with a NTP server FQDN. It will allow you to enter it, but KEA won't start. The workaround is to put a IP address in there.

        GertjanG 1 Reply Last reply Reply Quote 1
        • GertjanG
          Gertjan @pvk1
          last edited by

          @pvk1

          Yep. The KEA documentation - and for that matter, ISC DHCP states :
          NTP name server fields in are 'IP' - not a host name.
          The DHCP server KEA and ISC DHCP are not going tot resolve that host name. The DHCP RFC says : NTP servers are 'IP', not a host name.
          Here you can see what a DHCP server should hand over to a client : rfc2132 => that's IPv4 addresses.
          The pfSense GUI help message is :

          390233df-ab5a-4795-b7b4-c7cd9bbe67b7-image.png

          and is plain wrong. It's just a IP, no a host name, and even less a pool.

          I guess ISC DHCP silently ignored it as a NTP host name was given, KEA just bails out with a log-error message.

          Going even further :
          I've got several Windows based PCs here, a version 7, a 10 and several 11 : none are using the NTP server IP (192.168.1.1) that came with DHCP ...
          My iPhone, Pad etc : same thing.
          Androids : let me guess ^^

          I'm not even sure why I've set this NTP field. Maybe it will work some day.

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

          V P 2 Replies Last reply Reply Quote 1
          • V
            Vollans @Gertjan
            last edited by

            @Gertjan said in KEA DHCP missing "Register DHCP leases in DNS Resolver...":

            I'm not even sure why I've set this NTP field. Maybe it will work some day.

            You’d think after over 20 years we’d just give up on the idea of anyone ever taking it up. ;)

            1 Reply Last reply Reply Quote 0
            • P
              pvk1 @Gertjan
              last edited by pvk1

              @Gertjan That is all correct, but not the point.

              The point is that the banner suggests that you should go to System > Advanced > Networking and switch DHCP backend. It should have pointed to a explanation page with the current limitations, because as it is people waste a lot of time.

              22f22422-573a-45e4-a05e-6b5e52f7327e-image.png

              Also both the ISC and the KEA page let you enter a FDQN without a warning. KEA brakes on a FDQN, ISC does not.

              1 Reply Last reply Reply Quote 0
              • N
                nvdx
                last edited by

                I've made a special script that is called via Kea's hooks and live update unbound on each kea's lease update via unbound-control:
                https://github.com/nvandamme/kea-lease-unbound-control

                As i'm not an sh guru, feel free to make any pull requests !

                Cheers

                GertjanG 1 Reply Last reply Reply Quote 3
                • GertjanG
                  Gertjan @nvdx
                  last edited by Gertjan

                  @nvdx

                  Oho !
                  (something very like) This is all that Kea needs so it can register a host name into "unbound" as soon as it comes in.

                  👍

                  Question :

                  bc2240fa-cdcb-4627-9d6e-2dba6d499c32-image.png

                  shouldn't that be :

                  UNBOUND_CONTROL_PATH="/usr/local/sbin/unbound-control"
                  UNBOUND_CONFIG_PATH="/var/unbound/unbound.conf"
                  

                  ?

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

                  JonathanLeeJ N 2 Replies Last reply Reply Quote 0
                  • JonathanLeeJ
                    JonathanLee @Gertjan
                    last edited by

                    @Gertjan that dependent on plus version isn’t it?

                    Make sure to upvote

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

                      @JonathanLee

                      Noop.
                      pfSense Plus and CE are very, like a lot, identical, when it comes to these kind of details.
                      IMHO, Plus and CE have a common build source base.
                      Plus has some value added packages added, and some low level stuff that permits it to run on Azure.
                      Plus has also ZFS file system kernel module loaded, so it can use ZFS as an option.
                      Things like that.
                      Core functionalities like "DNS", or "DHCP", are the same.

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

                      JonathanLeeJ V 2 Replies Last reply Reply Quote 1
                      • N
                        nvdx @Gertjan
                        last edited by

                        @Gertjan
                        The example given is not matching pfsense specificaly.
                        For pfsense, of course, You're entirely right.
                        For other OSes, depends on the standard path of un
                        bound and kea's installation.
                        I'll add an example file for pfSense along the provided patch.

                        1 Reply Last reply Reply Quote 0
                        • JonathanLeeJ
                          JonathanLee @Gertjan
                          last edited by

                          @Gertjan Yes again CE starts with a different subfolder over Plus I think patches show a different root folder

                          Make sure to upvote

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

                            @Gertjan said in KEA DHCP missing "Register DHCP leases in DNS Resolver...":

                            Plus has also ZFS file system kernel module loaded, so it can use ZFS as an option.

                            As does CE. Plus has the tools for managing the ZFS system via the front end included, though, as a Plus.

                            1 Reply Last reply Reply Quote 0
                            • QinnQ
                              Qinn
                              last edited by

                              Maybe install System_Patches, there are 2 Kea patches and 2 DNS resolver.

                              Hardeware: Intel(R) Celeron(R) J4125 CPU @ 2.00GHz 102 GB mSATA SSD (ZFS)
                              Firmware: Latest-stable-pfSense CE (amd64)
                              Packages: pfBlockerNG devel-beta (beta tester) - Avahi - Notes - Ntopng - PIMD/udpbroadcastrelay - Service Watchdog - System Patches

                              4 1 Reply Last reply Reply Quote 1
                              • 4
                                4o4rh @Qinn
                                last edited by

                                @Qinn how do you find these two patches

                                S QinnQ 2 Replies Last reply Reply Quote 0
                                • S
                                  SteveITS Galactic Empire @4o4rh
                                  last edited by

                                  @4o4rh
                                  https://docs.netgate.com/pfsense/en/latest/development/system-patches.html

                                  Also of note, since the security notes are not yet in the 23.04 release notes:
                                  https://forum.netgate.com/topic/187622/system-patches-package-v2-2-10_1

                                  Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
                                  When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
                                  Upvote 👍 helpful posts!

                                  1 Reply Last reply Reply Quote 2
                                  • QinnQ
                                    Qinn @4o4rh
                                    last edited by Qinn

                                    @4o4rh as @SteveITS already posted the answer, install system patches, then go to System -> Patches and apply them. More to read here https://www.netgate.com/blog/using-pfsense-software-system-patches .

                                    Hardeware: Intel(R) Celeron(R) J4125 CPU @ 2.00GHz 102 GB mSATA SSD (ZFS)
                                    Firmware: Latest-stable-pfSense CE (amd64)
                                    Packages: pfBlockerNG devel-beta (beta tester) - Avahi - Notes - Ntopng - PIMD/udpbroadcastrelay - Service Watchdog - System Patches

                                    4 1 Reply Last reply Reply Quote 0
                                    • 4
                                      4o4rh @Qinn
                                      last edited by

                                      @Qinn doesn't really answer the question. Where do we get a list of the patches available and what they are for?

                                      1 Reply Last reply Reply Quote 0
                                      • QinnQ
                                        Qinn
                                        last edited by Qinn

                                        Install this package, you see a list recommended system patches for Netgate pfSense and for each patch there is a description what it does or do. After you installed the package see this list and you can choose to apply each one of them individually (even revert most of them if you for some reason want to) or change nothing and remove the whole package, as in the link above this package is recommended by Netgate.

                                        Hardeware: Intel(R) Celeron(R) J4125 CPU @ 2.00GHz 102 GB mSATA SSD (ZFS)
                                        Firmware: Latest-stable-pfSense CE (amd64)
                                        Packages: pfBlockerNG devel-beta (beta tester) - Avahi - Notes - Ntopng - PIMD/udpbroadcastrelay - Service Watchdog - System Patches

                                        4 1 Reply Last reply Reply Quote 0
                                        • 4
                                          4o4rh @Qinn
                                          last edited by

                                          @Qinn no recommendations
                                          f5f53923-d540-409a-b1ba-b6aaf59c536f-image.png

                                          S 1 Reply Last reply Reply Quote 0
                                          • S
                                            SteveITS Galactic Empire @4o4rh
                                            last edited by

                                            @4o4rh what version are you on? 24.03 has none because their code is included.

                                            Typically patches appear either a few weeks/months after a release, to fix bugs, or else they dropped a bunch of them for 2.7.2/23.09 after 24.03 was released because there are security fixes they backported for 2.7:2,
                                            https://forum.netgate.com/topic/187622/system-patches-package-v2-2-10_1

                                            Patches appear after the package is updated not on their own.

                                            Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
                                            When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
                                            Upvote 👍 helpful posts!

                                            1 Reply Last reply Reply Quote 0
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