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    Unbound DNS Resolver not starting

    Scheduled Pinned Locked Moved DHCP and DNS
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    • K
      KKIT @Gertjan
      last edited by

      @Gertjan

      Thanks, I get this:

      root 64053 0.0 0.0 13412 3064 - S 14:46 0:00.00 sh -c ps aux | fgrep -i unbound 2>&1
      root 64286 0.0 0.0 12840 2532 - S 14:46 0:00.00 fgrep -i unbound

      patient0P 1 Reply Last reply Reply Quote 0
      • GertjanG
        Gertjan @KKIT
        last edited by

        @KKIT said in Unbound DNS Resolver not starting:

        I did and nothing changes in the log when I try to adjust anything

        With :

        a0aafba5-973a-4879-8856-a9609d19fba6-image.png

        you will only see the start and stop lines.
        When a stop arrives, unbound will log about 30 "info" lines, the ones you've showed above.

        Btw : when you change edit whatever do something with the 3 unbound (revolver) settings pages, unbound won't get restarted. So no log lines.
        Only when you click on Apply on the top of any resolver settings page, unbound will get stopped, a new config file gets created, and unbound gets started. Then you see the the stop announcement, dump of the info and the the restart line.

        With a log level of 3, 4 or a whopping 5 you will see much more.
        Remember to reset to "1" when you're done (and apply ^^), as with level 5 unbound will log huge quantities.

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

        K 1 Reply Last reply Reply Quote 1
        • patient0P
          patient0 @KKIT
          last edited by

          @KKIT said in Unbound DNS Resolver not starting:

          @Gertjan

          Thanks, I get this:

          root 64053 0.0 0.0 13412 3064 - S 14:46 0:00.00 sh -c ps aux | fgrep -i unbound 2>&1
          root 64286 0.0 0.0 12840 2532 - S 14:46 0:00.00 fgrep -i unbound

          Ok, that means no Unbound instance is running at that time. Next I'd set the LogLevel to > 1.

          Do you have a fairly standard Unbound config? Running as a resolver or forwarder? Nothing else listening to port 53?

          K 1 Reply Last reply Reply Quote 1
          • K
            KKIT @Gertjan
            last edited by

            @Gertjan

            Unfortunately absolutely nothing happens when I set it to 5, I am still connected via SSH and within the logfile with tail, I also made sure to apply the settings as well as manually start the service under the "Services" section, nothing :(

            1 Reply Last reply Reply Quote 0
            • K
              KKIT @patient0
              last edited by

              @patient0

              I set the log level to 5 and still nothing, only the second node is listening on port 53 and the resolver is running as expected. No custom configuration on unbound and no DNS forwarder active.

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

                @KKIT

                I've just :

                tail -f /var/log/resolver.log
                

                and then :

                29de1c31-75cb-4359-9403-ef44292c37b8-image.png

                and then

                8b64784e-97d2-4534-83e0-9a7bce03cd4a-image.png

                and oh boy .... the tail command had a hard time keeping up with the pace. tens of lines a second, impossible to follow.

                Btw : I've no HA setup, just one box, and about 5 PC connected and some other stuff.
                I know that every device in my network uses my 'pfSense' as a DNS source, not some 1.1.1.1 or 8.8.8.8 or other data collector.

                If your unbound doesn't log anything on level 5 : isn't that a sign that LAN devices uses another device, and not (this !) pfSense, to do DNS requests ?

                Another trick : GUI this time ^^

                7ed086bc-70b0-449c-a549-a6b27281d516-image.png

                Set interface to your LAN interface, or any other LAN type interface.
                Set the port to '53' (DNS, recall)
                And hit Start.

                Now you should see "destination port 53".

                Add the IP of your pfSense, so now you'll see what LAN devices want to talk to your pfSense for DNS needs :

                f38a44cd-06a0-415b-b2ea-8b2bec8506f6-image.png

                Btw : I presume the default 192.168.1.1
                if there is no ore little DNS traffic, its normal that unbound doesn't 'log' ^^

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

                K 1 Reply Last reply Reply Quote 1
                • K
                  KKIT @Gertjan
                  last edited by

                  @Gertjan
                  I appreciate the input, but I think we are looking at the wrong end here. The Unbound service is not running at all, as confirmed above. Additionally, the node is currently in maintenance mode, I already tried putting it back into production but I wouldn't accept any requests. At this point I assume that either pfBlocker messed it up or I improperly shut the service down. I will go for a reinstall and see from there. THanks so far, really appreciate it and will keep you guys updated!

                  K 1 Reply Last reply Reply Quote 0
                  • K
                    KKIT @KKIT
                    last edited by

                    @KKIT

                    So I wanted to give a followup on this issue, I dug a little deeper and looking at this post:
                    https://forum.netgate.com/topic/154372/unbound-dns-resolver-will-not-start/3

                    I am pretty sure it has something to do with pfBLockerNG messing up my config file. I checked the directory of the config file and see that there are two with one having a ".error" added to it:

                    Screenshot 2024-06-20 at 14.19.06.png

                    Trying to reload unbound via shell shows this error:
                    unbound-control[85585:0] error: connect: Connection refused for 127.0.0.1 port 953

                    Unfortunately I lost my backups after the reinstall so my question is if I can transfer the unbound.conf from my functioning pfSense (Node B) to make it work again?

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

                      @KKIT said in Unbound DNS Resolver not starting:

                      I am pretty sure it has something to do with pfBLockerNG messing up my config file.

                      Easy to test.
                      Remove pfBlockerng from your pfSEnse, and get a copy from the unbound config file.
                      /var/unbound/unbound.conf

                      Install pfBlockerng, activate it, give it some DNSBL feeds and get a copy again from the unbound config file.

                      Compare the two copies.

                      You'll find a single difference, at the end :
                      If you use Python mode :

                      # Python Module
                      python:
                      python-script: pfb_unbound.py
                      

                      IMHO : this small python script file is very well tested by now.

                      Not python mode :
                      It "includes" a (one) 'master DNSBL' file ... forget about that file, as I switched to python mode (after years asking for it).

                      So, no, sorry, dead end.

                      pfBlockerng can restart unbound ones in a while (you decide how often).
                      But pfBlockerng isn't the only one doing so, other, network events for example, can also restart many services.

                      Edit :

                      Your unbound. conf file is rather big = 4k.
                      Mine is just over 2k.
                      Can you show it ?

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

                      K 1 Reply Last reply Reply Quote 0
                      • K
                        KKIT @Gertjan
                        last edited by KKIT

                        @Gertjan

                        Sure

                        ##########################

                        Unbound Configuration

                        ##########################

                        Server configuration

                        server:

                        chroot: /var/unbound
                        username: "unbound"
                        directory: "/var/unbound"
                        pidfile: "/var/run/unbound.pid"
                        use-syslog: yes
                        port: 53
                        verbosity: 1
                        hide-identity: yes
                        hide-version: yes
                        harden-glue: yes
                        do-ip4: yes
                        do-ip6: yes
                        do-udp: yes
                        do-tcp: yes
                        do-daemonize: yes
                        module-config: "iterator"
                        unwanted-reply-threshold: 0
                        num-queries-per-thread: 512
                        jostle-timeout: 200
                        infra-keep-probing: yes
                        infra-host-ttl: 900
                        infra-cache-numhosts: 10000
                        outgoing-num-tcp: 10
                        incoming-num-tcp: 10
                        edns-buffer-size: 1432
                        cache-max-ttl: 86400
                        cache-min-ttl: 0
                        harden-dnssec-stripped: no
                        msg-cache-size: 4m
                        rrset-cache-size: 8m

                        num-threads: 4
                        msg-cache-slabs: 4
                        rrset-cache-slabs: 4
                        infra-cache-slabs: 4
                        key-cache-slabs: 4
                        outgoing-range: 4096
                        #so-rcvbuf: 4m

                        prefetch: yes
                        prefetch-key: yes
                        use-caps-for-id: no
                        serve-expired: no
                        sock-queue-timeout: 0
                        aggressive-nsec: no

                        Statistics

                        Unbound Statistics

                        statistics-interval: 0
                        extended-statistics: yes
                        statistics-cumulative: yes

                        TLS Configuration

                        tls-cert-bundle: "/etc/ssl/cert.pem"

                        Interface IP addresses to bind to

                        interface: WAN NODE B
                        interface: 172.16.71.2
                        interface: 2001:0db8:85a3:0000:0000:8a2e:0370:7334
                        interface: 172.16.1.2
                        interface: 10.0.20.2
                        interface: 10.0.30.2
                        interface: 10.0.90.2
                        interface: 10.0.91.2
                        interface: 10.0.31.2
                        interface: 172.16.71.1
                        interface: WAN NODE A
                        interface: 10.0.20.1
                        interface: 10.0.30.1
                        interface: 10.0.90.1
                        interface: 10.172.17.1
                        interface: 10.0.91.1
                        interface: NETWORK A
                        interface: NETWORK B
                        interface: NETWORK C
                        interface: 10.0.40.1
                        interface: NETWORK D
                        interface: NETWORK E
                        interface: 10.0.31.1
                        interface: NETWORK F
                        interface: 127.0.0.1
                        interface: ::1

                        Outgoing interfaces to be used

                        outgoing-interface: WAN NODE B
                        outgoing-interface: 172.16.71.2
                        outgoing-interface: xxx
                        outgoing-interface: 172.16.1.2
                        outgoing-interface: 10.0.20.2
                        outgoing-interface: 10.0.30.2
                        outgoing-interface: 10.0.90.2
                        outgoing-interface: 10.0.91.2
                        outgoing-interface: 10.0.31.2
                        outgoing-interface: 172.16.71.1
                        outgoing-interface: WAN NODE A
                        outgoing-interface: 10.0.20.1
                        outgoing-interface: 10.0.30.1
                        outgoing-interface: 10.0.90.1
                        outgoing-interface: 10.172.17.1
                        outgoing-interface: 10.0.91.1
                        outgoing-interface: NETWORK A
                        outgoing-interface: NETWORK B
                        outgoing-interface: NETWORK C
                        outgoing-interface: 10.0.40.1
                        outgoing-interface: NETWORK D
                        outgoing-interface: NETWORK E
                        outgoing-interface: 10.0.31.1
                        outgoing-interface: NETWORK F
                        outgoing-interface: 127.0.0.1
                        outgoing-interface: ::1

                        DNS Rebinding

                        For DNS Rebinding prevention

                        private-address: 127.0.0.0/8
                        private-address: 10.0.0.0/8
                        private-address: ::ffff:a00:0/104
                        private-address: 172.16.0.0/12
                        private-address: ::ffff:ac10:0/108
                        private-address: 169.254.0.0/16
                        private-address: ::ffff:a9fe:0/112
                        private-address: 192.168.0.0/16
                        private-address: ::ffff:c0a8:0/112
                        private-address: fd00::/8
                        private-address: fe80::/10

                        Access lists

                        include: /var/unbound/access_lists.conf

                        Static host entries

                        include: /var/unbound/host_entries.conf

                        dhcp lease entries

                        include: /var/unbound/dhcpleases_entries.conf

                        Domain overrides

                        include: /var/unbound/domainoverrides.conf

                        Forwarding

                        forward-zone:
                        name: "."
                        forward-tls-upstream: yes
                        forward-addr: ::1@853
                        forward-addr: 1.1.1.1@853#one.one.one.one
                        forward-addr: 1.0.0.1@853#one.one.one.one
                        forward-addr: 8.8.8.8@853#dns.google
                        forward-addr: 8.8.4.4@853#dns.google

                        Remote Control Config

                        include: /var/unbound/remotecontrol.conf

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

                          @KKIT

                          Worth trying for a while : instead of detailing all interface roles, go for the simple :

                          c11c6bf4-02d0-492b-83ad-75b36a60fe8e-image.png

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

                          K 1 Reply Last reply Reply Quote 0
                          • K
                            KKIT @Gertjan
                            last edited by

                            @Gertjan

                            Unbelievable, it worked. I can't wrap my head around why that would be the case though. Thank you so much for taking the time man

                            1 Reply Last reply Reply Quote 0
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