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    Unbound crashes periodically with signal 11

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    2.5 Development Snapshots (Retired)
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    • B
      bimmerdriver
      last edited by jimp

      I first noticed yesterday that the windows 10 client had no internet access, even after disabling and reenabling the network adapter. The console was still alive, so I rebooted it. It came up okay, so I updated it and left it until today. I noticed again today that the client had no internet access. I rebooted and checked the log. The general log is completely empty from yesterday until I logged into the console to reboot.

      Here are the log messages where the gap is located:

      Jan 18 12:32:03	login	82321	login on ttyv0 as root
Jan 17 17:55:55	kernel		pid 42275 (unbound), jid 0, uid 59: exited on signal 11

      Is anyone else experiencing this?

      bmeeksB 1 Reply Last reply Reply Quote 0
      • bmeeksB
        bmeeks @bimmerdriver
        last edited by

        @bimmerdriver said in pfSense 2.50 snapshots have been dying for the past couple of days:

        I first noticed yesterday that the windows 10 client had no internet access, even after disabling and reenabling the network adapter. The console was still alive, so I rebooted it. It came up okay, so I updated it and left it until today. I noticed again today that the client had no internet access. I rebooted and checked the log. The general log is completely empty from yesterday until I logged into the console to reboot.

        Here are the log messages where the gap is located:

        Jan 18 12:32:03	login	82321	login on ttyv0 as root
Jan 17 17:55:55	kernel		pid 42275 (unbound), jid 0, uid 59: exited on signal 11

        Is anyone else experiencing this?

        It might be useful to the developers to know if you have any packages running that interact with unbound, such as pfBlockerNG-devel. If you have such a package, I would try disabling the package to see if the package interaction with unbound is the issue, or if unbound alone is crashing.

        M 1 Reply Last reply Reply Quote 0
        • M
          maverick_slo @bmeeks
          last edited by

          @bmeeks
          I too have the same problem. Only unbound dies...

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

            @maverick_slo
            Other packages ?
            Latest snapshot ?
            Developers can only actually do something if you add details.

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

            M 1 Reply Last reply Reply Quote 0
            • M
              maverick_slo @Gertjan
              last edited by

              Snapshot:
              2.5.0-DEVELOPMENT (amd64) built on Sun Jan 17 00:06:34 EST 2021

              Packages:
              acme
              Cron
              haproxy-devel
              openvpn-client-export
              snort

              Log:
              Jan 19 07:57:13 unbound 40894 [40894:0] info: service stopped (unbound 1.13.0).
              Jan 19 08:00:52 kernel pid 40894 (unbound), jid 0, uid 59: exited on signal 11
              Jan 19 08:05:33 dhcpleases 26712 Could not deliver signal HUP to process 40894: No such process

              Was working 3-4 days ago without any issues.

              bmeeksB 1 Reply Last reply Reply Quote 1
              • bmeeksB
                bmeeks @maverick_slo
                last edited by bmeeks

                @maverick_slo said in pfSense 2.50 snapshots have been dying for the past couple of days:

                Jan 19 07:57:13 unbound 40894 [40894:0] info: service stopped (unbound 1.13.0).
                Jan 19 08:00:52 kernel pid 40894 (unbound), jid 0, uid 59: exited on signal 11
                Jan 19 08:05:33 dhcpleases 26712 Could not deliver signal HUP to process 40894: No such process

                The list of packages and relevant log entries helps the developers. From the log snippet I quoted above, it appears the unbound service was told to "stop", and then about 2 minutes later the kernel logs the Signal 11 from the unbound daemon, which is a SEGFAULT or memory violation.

                1 Reply Last reply Reply Quote 0
                • B
                  bimmerdriver
                  last edited by

                  Sorry for the delay to reply with further information. This system has no packages installed. It's running on a windows 2019 hyper-v server. The lan and single windows 10 client are also virtual. It's configured with basic mostly default settings with a native dual-stack connection to the ISP. The prefix is a /56. Since I posted, the system operated continuously with no problems, so perhaps something changed when I updated to 2.5.0.a.20210120.1500.

                  1 Reply Last reply Reply Quote 0
                  • M
                    maverick_slo
                    last edited by

                    doing update to 2.5.0.a.20210120.1500 now.
                    lets see

                    M 1 Reply Last reply Reply Quote 0
                    • N
                      n8it
                      last edited by

                      Unbound stops, requires manual restart several times a day.
                      Version: 2.5.0.a.20210118.2350
                      Unbound 1.13.0
                      Packages: apcupsd 0.3.91_9

                      2021-01-21 04:43:35.153316+00:00 	unbound 	66192 	[66192:0] info: 0.002048 0.004096 1
2021-01-21 04:43:35.153307+00:00 	unbound 	66192 	[66192:0] info: lower(secs) upper(secs) recursions
2021-01-21 04:43:35.153296+00:00 	unbound 	66192 	[66192:0] info: [25%]=0 median[50%]=0 [75%]=0
2021-01-21 04:43:35.153287+00:00 	unbound 	66192 	[66192:0] info: histogram of recursion processing times
2021-01-21 04:43:35.153277+00:00 	unbound 	66192 	[66192:0] info: average recursion processing time 0.002168 sec
2021-01-21 04:43:35.153262+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 3: requestlist max 0 avg 0 exceeded 0 jostled 0
2021-01-21 04:43:35.153246+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 3: 3 queries, 2 answers from cache, 1 recursions, 0 prefetch, 0 rejected by ip ratelimiting
2021-01-21 04:43:35.152091+00:00 	unbound 	66192 	[66192:0] info: 0.131072 0.262144 3
2021-01-21 04:43:35.152076+00:00 	unbound 	66192 	[66192:0] info: 0.065536 0.131072 1
2021-01-21 04:43:35.152061+00:00 	unbound 	66192 	[66192:0] info: lower(secs) upper(secs) recursions
2021-01-21 04:43:35.152052+00:00 	unbound 	66192 	[66192:0] info: [25%]=0.131072 median[50%]=0.174763 [75%]=0.218453
2021-01-21 04:43:35.152039+00:00 	unbound 	66192 	[66192:0] info: histogram of recursion processing times
2021-01-21 04:43:35.152028+00:00 	unbound 	66192 	[66192:0] info: average recursion processing time 0.175769 sec
2021-01-21 04:43:35.152014+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 2: requestlist max 0 avg 0 exceeded 0 jostled 0
2021-01-21 04:43:35.151997+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 2: 4 queries, 0 answers from cache, 4 recursions, 0 prefetch, 0 rejected by ip ratelimiting
2021-01-21 04:43:35.150737+00:00 	unbound 	66192 	[66192:0] info: 0.032768 0.065536 1
2021-01-21 04:43:35.150728+00:00 	unbound 	66192 	[66192:0] info: lower(secs) upper(secs) recursions
2021-01-21 04:43:35.150717+00:00 	unbound 	66192 	[66192:0] info: [25%]=0 median[50%]=0 [75%]=0
2021-01-21 04:43:35.150708+00:00 	unbound 	66192 	[66192:0] info: histogram of recursion processing times
2021-01-21 04:43:35.150698+00:00 	unbound 	66192 	[66192:0] info: average recursion processing time 0.049706 sec
2021-01-21 04:43:35.150689+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 1: requestlist max 0 avg 0 exceeded 0 jostled 0
2021-01-21 04:43:35.150673+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 1: 2 queries, 1 answers from cache, 1 recursions, 0 prefetch, 0 rejected by ip ratelimiting
2021-01-21 04:43:35.149631+00:00 	unbound 	66192 	[66192:0] info: 0.131072 0.262144 2
2021-01-21 04:43:35.149620+00:00 	unbound 	66192 	[66192:0] info: 0.002048 0.004096 1
2021-01-21 04:43:35.149611+00:00 	unbound 	66192 	[66192:0] info: lower(secs) upper(secs) recursions
2021-01-21 04:43:35.149600+00:00 	unbound 	66192 	[66192:0] info: [25%]=0 median[50%]=0 [75%]=0
2021-01-21 04:43:35.149591+00:00 	unbound 	66192 	[66192:0] info: histogram of recursion processing times
2021-01-21 04:43:35.149580+00:00 	unbound 	66192 	[66192:0] info: average recursion processing time 0.145391 sec
2021-01-21 04:43:35.149567+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 0: requestlist max 0 avg 0 exceeded 0 jostled 0
2021-01-21 04:43:35.149546+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 0: 3 queries, 0 answers from cache, 3 recursions, 0 prefetch, 0 rejected by ip ratelimiting
2021-01-21 04:43:35.149002+00:00 	unbound 	66192 	[66192:0] info: service stopped (unbound 1.13.0).
2021-01-21 04:42:07.648917+00:00 	unbound 	66192 	[66192:0] info: start of service (unbound 1.13.0).
2021-01-21 04:42:07.642700+00:00 	unbound 	66192 	[66192:0] notice: init module 0: iterator
2021-01-21 04:42:07.641500+00:00 	unbound 	66192 	[66192:0] notice: Restart of unbound 1.13.0.
2021-01-21 04:42:07.640307+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 3: requestlist max 0 avg 0 exceeded 0 jostled 0
2021-01-21 04:42:07.640290+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 3: 0 queries, 0 answers from cache, 0 recursions, 0 prefetch, 0 rejected by ip ratelimiting
2021-01-21 04:42:07.639234+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 2: requestlist max 0 avg 0 exceeded 0 jostled 0
2021-01-21 04:42:07.639218+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 2: 0 queries, 0 answers from cache, 0 recursions, 0 prefetch, 0 rejected by ip ratelimiting
2021-01-21 04:42:07.638136+00:00 	unbound 	66192 	[66192:0] info: 0.131072 0.262144 1
2021-01-21 04:42:07.638121+00:00 	unbound 	66192 	[66192:0] info: lower(secs) upper(secs) recursions
2021-01-21 04:42:07.638106+00:00 	unbound 	66192 	[66192:0] info: [25%]=0 median[50%]=0 [75%]=0
2021-01-21 04:42:07.638097+00:00 	unbound 	66192 	[66192:0] info: histogram of recursion processing times
2021-01-21 04:42:07.638086+00:00 	unbound 	66192 	[66192:0] info: average recursion processing time 0.218760 sec
2021-01-21 04:42:07.638077+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 1: requestlist max 0 avg 0 exceeded 0 jostled 0
2021-01-21 04:42:07.638060+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 1: 1 queries, 0 answers from cache, 1 recursions, 0 prefetch, 0 rejected by ip ratelimiting
2021-01-21 04:42:07.636993+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 0: requestlist max 0 avg 0 exceeded 0 jostled 0
2021-01-21 04:42:07.636974+00:00 	unbound 	66192 	[66192:0] info: server stats for thread 0: 0 queries, 0 answers from cache, 0 recursions, 0 prefetch, 0 rejected by ip ratelimiting
2021-01-21 04:42:07.636447+00:00 	unbound 	66192 	[66192:0] info: service stopped (unbound 1.13.0).
2021-01-21 04:41:56.104192+00:00 	unbound 	66192 	[66192:0] info: start of service (unbound 1.13.0).

                      David

                      GertjanG 1 Reply Last reply Reply Quote 0
                      • M
                        maverick_slo @maverick_slo
                        last edited by

                        @maverick_slo
                        did not help: Jan 21 06:45:09 kernel pid 5252 (unbound), jid 0, uid 59: exited on signal 11

                        1 Reply Last reply Reply Quote 0
                        • GertjanG
                          Gertjan @n8it
                          last edited by

                          @n8it said in pfSense 2.50 snapshots have been dying for the past couple of days:

                          2021-01-21 04:43:35.149002+00:00 unbound 66192 [66192:0] info: service stopped (unbound 1.13.0).
                          2021-01-21 04:42:07.648917+00:00 unbound 66192 [66192:0] info: start of service (unbound 1.13.0).

                          What/who is restarting unbound ? Check other logs, like DHCP.
                          How often does it restart.

                          Btw : the unbound log sequence you showed is the normal one for stop and start : on stop it dumps some stats for every internal thread.

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

                          M 1 Reply Last reply Reply Quote 0
                          • M
                            maverick_slo @Gertjan
                            last edited by

                            @gertjan
                            For me it is just this log line: Jan 21 06:45:09 kernel pid 5252 (unbound), jid 0, uid 59: exited on signal 11
                            Nothing in unbound logs or anywhere else.
                            Started few days ago.

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

                              @maverick_slo

                              If it still exists, and is checked : uncheck

                              5835e428-dcbb-44a4-bd57-e5d0abf51361-image.png

                              edit : I'm not using 2.5.0 myself.

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

                              M 1 Reply Last reply Reply Quote 0
                              • N
                                n8it
                                last edited by

                                DHCP logs do show DHCP is sending a HUP to DNS daemon. It happens more than 12 times a day. Thanks for telling me to check.

                                code_text
2021-01-21 06:10:05.551715+00:00 	dhcpd 	49502 	DHCPACK on 192.168.1.89 to 04:79:b7:ad:9c:7a via igb1
2021-01-21 06:10:05.551693+00:00 	dhcpd 	49502 	DHCPREQUEST for 192.168.1.89 from 04:79:b7:ad:9c:7a via igb1
2021-01-21 06:07:14.269409+00:00 	dhcpleases 	35662 	Sending HUP signal to dns daemon(43713)
2021-01-21 06:07:14.253979+00:00 	dhcpd 	49502 	DHCPACK on 192.168.1.101 to ac:5f:3e:fe:91:3e (DesGS7) via igb1
2021-01-21 06:07:14.252255+00:00 	dhcpd 	49502 	DHCPREQUEST for 192.168.1.101 from ac:5f:3e:fe:91:3e (DesGS7) via igb1
2021-01-21 06:06:52.752895+00:00 	dhcpleases 	35662 	Sending HUP signal to dns daemon(43713)
2021-01-21 06:06:52.738449+00:00 	dhcpleases 	35662 	Sending HUP signal to dns daemon(43713)
2021-01-21 06:06:52.721929+00:00 	dhcpd 	49502 	Server starting service.
2021-01-21 06:06:52.721763+00:00 	dhcpd 	49502 	Sending on Socket/fallback/fallback-net
2021-01-21 06:06:52.721705+00:00 	dhcpd 	49502 	Sending on BPF/igb1/40:62:31:0a:d9:7b/192.168.1.0/24
2021-01-21 06:06:52.721631+00:00 	dhcpd 	49502 	Listening on BPF/igb1/40:62:31:0a:d9:7b/192.168.1.0/24
2021-01-21 06:06:52.721562+00:00 	dhcpd 	49502 	Sending on BPF/igb2/40:62:31:0a:d9:7c/192.168.100.0/24
2021-01-21 06:06:52.721536+00:00 	dhcpd 	49502 	Listening on BPF/igb2/40:62:31:0a:d9:7c/192.168.100.0/24
2021-01-21 06:06:52.719470+00:00 	dhcpd 	49502 	Wrote 24 leases to leases file.
2021-01-21 06:06:52.719236+00:00 	dhcpd 	49502 	Wrote 0 new dynamic host decls to leases file.
2021-01-21 06:06:52.719187+00:00 	dhcpd 	49502 	Wrote 0 deleted host decls to leases file.
2021-01-21 06:06:52.719107+00:00 	dhcpd 	49502 	Wrote 0 class decls to leases file.
2021-01-21 06:06:52.718612+00:00 	dhcpd 	49502 	For info, please visit https://www.isc.org/software/dhcp/
2021-01-21 06:06:52.718602+00:00 	dhcpd 	49502 	All rights reserved.
2021-01-21 06:06:52.718593+00:00 	dhcpd 	49502 	Copyright 2004-2020 Internet Systems Consortium.
2021-01-21 06:06:52.718582+00:00 	dhcpd 	49502 	Internet Systems Consortium DHCP Server 4.4.2
2021-01-21 06:06:52.718525+00:00 	dhcpd 	49502 	PID file: /var/run/dhcpd.pid
2021-01-21 06:06:52.718493+00:00 	dhcpd 	49502 	Database file: /var/db/dhcpd.leases
2021-01-21 06:06:52.718428+00:00 	dhcpd 	49502 	Config file: /etc/dhcpd.conf
2021-01-21 06:06:52.716270+00:00 	dhcpd 	49502 	For info, please visit https://www.isc.org/software/dhcp/
2021-01-21 06:06:52.716232+00:00 	dhcpd 	49502 	All rights reserved.
2021-01-21 06:06:52.716207+00:00 	dhcpd 	49502 	Copyright 2004-2020 Internet Systems Consortium.
2021-01-21 06:06:52.716056+00:00 	dhcpd 	49502 	Internet Systems Consortium DHCP Server 4.4.2
2021-01-21 06:06:51.481598+00:00 	dhcpleases 	35662 	Could not deliver signal HUP to process 30993: No such process.
2021-01-21 06:06:51.481494+00:00 	dhcpleases 	35662 	Sending HUP signal to dns daemon(30993)
2021-01-21 06:00:48.433505+00:00 	dhcpleases 	23469 	Sending HUP signal to dns daemon(30993)
2021-01-21 06:00:48.419710+00:00 	dhcpd 	36710 	Server starting service.
2021-01-21 06:00:48.419547+00:00 	dhcpd 	36710 	Sending on Socket/fallback/fallback-net
2021-01-21 06:00:48.419432+00:00 	dhcpd 	36710 	Sending on BPF/igb1/40:62:31:0a:d9:7b/192.168.1.0/24
2021-01-21 06:00:48.419387+00:00 	dhcpd 	36710 	Listening on BPF/igb1/40:62:31:0a:d9:7b/192.168.1.0/24
2021-01-21 06:00:48.419220+00:00 	dhcpd 	36710 	Sending on BPF/igb2/40:62:31:0a:d9:7c/192.168.100.0/24
2021-01-21 06:00:48.419168+00:00 	dhcpd 	36710 	Listening on BPF/igb2/40:62:31:0a:d9:7c/192.168.100.0/24
2021-01-21 06:00:48.416935+00:00 	dhcpd 	36710 	Wrote 24 leases to leases file.
2021-01-21 06:00:48.416727+00:00 	dhcpd 	36710 	Wrote 0 new dynamic host decls to leases file.
2021-01-21 06:00:48.416680+00:00 	dhcpd 	36710 	Wrote 0 deleted host decls to leases file.
2021-01-21 06:00:48.416615+00:00 	dhcpd 	36710 	Wrote 0 class decls to leases file.
2021-01-21 06:00:48.416054+00:00 	dhcpd 	36710 	For info, please visit https://www.isc.org/software/dhcp/
2021-01-21 06:00:48.416044+00:00 	dhcpd 	36710 	All rights reserved.
2021-01-21 06:00:48.416035+00:00 	dhcpd 	36710 	Copyright 2004-2020 Internet Systems Consortium.
2021-01-21 06:00:48.416024+00:00 	dhcpd 	36710 	Internet Systems Consortium DHCP Server 4.4.2
2021-01-21 06:00:48.415966+00:00 	dhcpd 	36710 	PID file: /var/run/dhcpd.pid
2021-01-21 06:00:48.415930+00:00 	dhcpd 	36710 	Database file: /var/db/dhcpd.leases
2021-01-21 06:00:48.415865+00:00 	dhcpd 	36710 	Config file: /etc/dhcpd.conf
2021-01-21 06:00:48.413782+00:00 	dhcpd 	36710 	For info, please visit https://www.isc.org/software/dhcp/
2021-01-21 06:00:48.413752+00:00 	dhcpd 	36710 	All rights reserved.
2021-01-21 06:00:48.413709+00:00 	dhcpd 	36710 	Copyright 2004-2020 Internet Systems Consortium.
2021-01-21 06:00:48.413590+00:00 	dhcpd 	36710 	Internet Systems Consortium DHCP Server 4.4.2
                                GertjanG 1 Reply Last reply Reply Quote 0
                                • GertjanG
                                  Gertjan @n8it
                                  last edited by

                                  You have a single LAN with single W10 client and you see this :

                                  @n8it said in pfSense 2.50 snapshots have been dying for the past couple of days:

                                  2021-01-21 06:06:52.752895+00:00 dhcpleases 35662 Sending HUP signal to dns daemon(43713)
                                  2021-01-21 06:06:52.738449+00:00 dhcpleases 35662 Sending HUP signal to dns daemon(43

                                  Who are these 192.168.1.101 - 192.168.1.89

                                  Why is the dhcpd server restarting so often ?
                                  If the LAN goes down, it's normal that clients trigger a DHCP sequence. But your LAN is virtual ...

                                  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
                                  • M
                                    maverick_slo @Gertjan
                                    last edited by

                                    @gertjan well that resolved it.
                                    Thanks for the tip now to find root cause...

                                    1 Reply Last reply Reply Quote 0
                                    • S
                                      SuperMaster
                                      last edited by

                                      it looks like dhcp tries to restart the unbound service because of a new dhcp lease but unbound does not start again.

                                      if I enter this

                                       kill -1 `cat /var/run/unbound.pid`

                                      in the comandline on my production system unbound restarts on the 2.5 snapshot unbound dies and doesn't start again.

                                      can anyone confirm this?

                                      M GertjanG 2 Replies Last reply Reply Quote 0
                                      • M
                                        maverick_slo @SuperMaster
                                        last edited by

                                        @supermaster
                                        Yup.

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

                                          @supermaster said in pfSense 2.50 snapshots have been dying for the past couple of days:

                                          it looks like dhcp tries to restart the unbound

                                          dhcp == the DHCP client, running on a WAN type interface to get a WAN IP from an upstream DHCP server, like your ISP router, or your ISP.
                                          dhcpd is a server type app that receive DHCP requests from dhcp clients on your LAN.
                                          I presume that your dhcp is the dhcpd process.

                                          Ins't

                                          kill -1 `cat /var/run/unbound.pid`

                                          just killing it ? It's not a 'restart' command.

                                          Also, check if the PID, the integer in the file is actually the PID of the running instance of unbound.

                                          ps ax   | grep 'unbound'

                                          to see how many unbound instances are running, and if the PID corresponds.

                                          If the dhcpd is restarting unbound to often, set up unbound to ignore new DHCP leases - this works well with 2.4.5-p1.

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

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                                            SuperMaster @Gertjan
                                            last edited by

                                            @gertjan

                                            yes i mean the dhcpd process. the problem is not that dhpcd restarts unbound too often.

                                            if I understand the code correctly https://github.com/pfsense/FreeBSD-ports/blob/devel/sysutils/dhcpleases/files/dhcpleases.c

                                            	syslog(LOG_INFO, "Sending HUP signal to dns daemon(%u)", pidno);
	if (kill((pid_t)pidno, SIGHUP) < 0)
		syslog(LOG_ERR,
		    "Could not deliver signal HUP to process %d: %m.", pidno)

                                            it will send kil -HUP (kill -1 is the same as HUP) to unobund but i dont find where unbound is startet after that again.

                                            this works in version 2.4.5 without problems because unbound just starts again when you do a kill -HUP but not in 2.5 since the update to unbound 1.13

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