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    unbound unstable?

    Scheduled Pinned Locked Moved DHCP and DNS
    18 Posts 2 Posters 1.7k Views 3 Watching
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    • johnpozJ Offline
      johnpoz LAYER 8 Global Moderator @david_moo
      last edited by

      @david_moo so since you disabled dhcp hows it working?

      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 25.07 | Lab VMs 2.8, 25.07

      D 1 Reply Last reply Reply Quote 0
      • D Offline
        david_moo @johnpoz
        last edited by

        @johnpoz

        I would say no change:
        It does find some websites, but not zoom?

        david@iMac ~ % sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder
david@iMac ~ % nslookup zoom.us
Server:		192.168.9.1
Address:	192.168.9.1#53

** server can't find zoom.us: SERVFAIL

        The unbound server doesn't seem to be restarting (looking at the end of the log).
        log2.txt

        johnpozJ 1 Reply Last reply Reply Quote 0
        • johnpozJ Offline
          johnpoz LAYER 8 Global Moderator @david_moo
          last edited by

          @david_moo well if you can not find something specific.. try doing a trace and see where your failing.. I am not having any issues resolving that.

          But when you resolve - its possible your having a hard time talking to the authoritative NS for that domain.

          I set it not to do dnssec in the trace - so its easier to read.

          [21.05.2-RELEASE][admin@sg4860.local.lan]/root: dig zoom.us +trace +nodnssec

; <<>> DiG 9.16.16 <<>> zoom.us +trace +nodnssec
;; global options: +cmd
.                       72211   IN      NS      i.root-servers.net.
.                       72211   IN      NS      j.root-servers.net.
.                       72211   IN      NS      k.root-servers.net.
.                       72211   IN      NS      l.root-servers.net.
.                       72211   IN      NS      m.root-servers.net.
.                       72211   IN      NS      a.root-servers.net.
.                       72211   IN      NS      b.root-servers.net.
.                       72211   IN      NS      c.root-servers.net.
.                       72211   IN      NS      d.root-servers.net.
.                       72211   IN      NS      e.root-servers.net.
.                       72211   IN      NS      f.root-servers.net.
.                       72211   IN      NS      g.root-servers.net.
.                       72211   IN      NS      h.root-servers.net.
;; Received 239 bytes from 127.0.0.1#53(127.0.0.1) in 0 ms

us.                     172800  IN      NS      b.cctld.us.
us.                     172800  IN      NS      f.cctld.us.
us.                     172800  IN      NS      k.cctld.us.
us.                     172800  IN      NS      w.cctld.us.
us.                     172800  IN      NS      x.cctld.us.
us.                     172800  IN      NS      y.cctld.us.
;; Received 402 bytes from 192.203.230.10#53(e.root-servers.net) in 13 ms

zoom.us.                7200    IN      NS      ns-1137.awsdns-14.org.
zoom.us.                7200    IN      NS      ns-1772.awsdns-29.co.uk.
zoom.us.                7200    IN      NS      ns-387.awsdns-48.com.
zoom.us.                7200    IN      NS      ns-888.awsdns-47.net.
;; Received 176 bytes from 2001:dcd:1::15#53(w.cctld.us) in 33 ms

zoom.us.                60      IN      A       170.114.10.71
zoom.us.                172800  IN      NS      ns-1137.awsdns-14.org.
zoom.us.                172800  IN      NS      ns-1772.awsdns-29.co.uk.
zoom.us.                172800  IN      NS      ns-387.awsdns-48.com.
zoom.us.                172800  IN      NS      ns-888.awsdns-47.net.
;; Received 192 bytes from 2600:9000:5303:7800::1#53(ns-888.awsdns-47.net) in 54 ms

[21.05.2-RELEASE][admin@sg4860.local.lan]/root:

          Does your trace work from pfsense?

          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 25.07 | Lab VMs 2.8, 25.07

          D 1 Reply Last reply Reply Quote 0
          • D Offline
            david_moo @johnpoz
            last edited by

            @johnpoz

            Works from pfsense shell and not from desktop's.

            From

            [21.05.2-RELEASE][root@pfsense]/root: dig zoom.us +trace +nodnssec

; <<>> DiG 9.16.16 <<>> zoom.us +trace +nodnssec
;; global options: +cmd
.			81920	IN	NS	b.root-servers.net.
.			81920	IN	NS	m.root-servers.net.
.			81920	IN	NS	h.root-servers.net.
.			81920	IN	NS	e.root-servers.net.
.			81920	IN	NS	l.root-servers.net.
.			81920	IN	NS	d.root-servers.net.
.			81920	IN	NS	j.root-servers.net.
.			81920	IN	NS	f.root-servers.net.
.			81920	IN	NS	g.root-servers.net.
.			81920	IN	NS	a.root-servers.net.
.			81920	IN	NS	i.root-servers.net.
.			81920	IN	NS	c.root-servers.net.
.			81920	IN	NS	k.root-servers.net.
;; Received 239 bytes from 127.0.0.1#53(127.0.0.1) in 0 ms

us.			172800	IN	NS	y.cctld.us.
us.			172800	IN	NS	b.cctld.us.
us.			172800	IN	NS	w.cctld.us.
us.			172800	IN	NS	f.cctld.us.
us.			172800	IN	NS	k.cctld.us.
us.			172800	IN	NS	x.cctld.us.
;; Received 432 bytes from 192.112.36.4#53(g.root-servers.net) in 55 ms

zoom.us.		7200	IN	NS	ns-1137.awsdns-14.org.
zoom.us.		7200	IN	NS	ns-387.awsdns-48.com.
zoom.us.		7200	IN	NS	ns-888.awsdns-47.net.
zoom.us.		7200	IN	NS	ns-1772.awsdns-29.co.uk.
;; Received 176 bytes from 37.209.192.15#53(w.cctld.us) in 38 ms

zoom.us.		60	IN	A	170.114.10.80
zoom.us.		172800	IN	NS	ns-1137.awsdns-14.org.
zoom.us.		172800	IN	NS	ns-1772.awsdns-29.co.uk.
zoom.us.		172800	IN	NS	ns-387.awsdns-48.com.
zoom.us.		172800	IN	NS	ns-888.awsdns-47.net.
;; Received 192 bytes from 205.251.195.120#53(ns-888.awsdns-47.net) in 34 ms

[21.05.2-RELEASE][root@pfsense]/root:

            From Desktop:

            david@iMac ~ % dig zoom.us +trace +nodnssec

; <<>> DiG 9.10.6 <<>> zoom.us +trace +nodnssec
;; global options: +cmd
;; Received 17 bytes from 192.168.9.1#53(192.168.9.1) in 0 ms

david@iMac ~ %
            johnpozJ 1 Reply Last reply Reply Quote 0
            • johnpozJ Offline
              johnpoz LAYER 8 Global Moderator @david_moo
              last edited by

              @david_moo just try dig zoom.us

              ServFail is something else going wrong, and not specific wrong with NS resolving - it could be lots of things that are going wrong.

              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 25.07 | Lab VMs 2.8, 25.07

              1 Reply Last reply Reply Quote 0
              • D Offline
                david_moo
                last edited by

                @johnpoz

                Works from pfsense, and linux boxes. Fails from MacOS boxes (I tried 2). Works from MacOS boxes if I spec another DNS server.

                david@iMac Desktop % dig zoom.us +trace +nodnssec

; <<>> DiG 9.10.6 <<>> zoom.us +trace +nodnssec
;; global options: +cmd
;; Received 17 bytes from 192.168.9.1#53(192.168.9.1) in 0 ms



                
david@iMac Desktop % dig @8.8.8.8 +trace +nodnssec zoom.us

; <<>> DiG 9.10.6 <<>> @8.8.8.8 +trace +nodnssec zoom.us
; (1 server found)
;; global options: +cmd
.			34761	IN	NS	b.root-servers.net.
.			34761	IN	NS	f.root-servers.net.
.			34761	IN	NS	k.root-servers.net.
.			34761	IN	NS	a.root-servers.net.
.			34761	IN	NS	d.root-servers.net.
.			34761	IN	NS	j.root-servers.net.
.			34761	IN	NS	l.root-servers.net.
.			34761	IN	NS	g.root-servers.net.
.			34761	IN	NS	c.root-servers.net.
.			34761	IN	NS	e.root-servers.net.
.			34761	IN	NS	h.root-servers.net.
.			34761	IN	NS	i.root-servers.net.
.			34761	IN	NS	m.root-servers.net.
;; Received 239 bytes from 8.8.8.8#53(8.8.8.8) in 23 ms

us.			172800	IN	NS	f.cctld.us.
us.			172800	IN	NS	y.cctld.us.
us.			172800	IN	NS	w.cctld.us.
us.			172800	IN	NS	x.cctld.us.
us.			172800	IN	NS	b.cctld.us.
us.			172800	IN	NS	k.cctld.us.
;; Received 404 bytes from 193.0.14.129#53(k.root-servers.net) in 58 ms

zoom.us.		7200	IN	NS	ns-387.awsdns-48.com.
zoom.us.		7200	IN	NS	ns-1137.awsdns-14.org.
zoom.us.		7200	IN	NS	ns-888.awsdns-47.net.
zoom.us.		7200	IN	NS	ns-1772.awsdns-29.co.uk.
;; Received 176 bytes from 37.209.192.15#53(w.cctld.us) in 39 ms

zoom.us.		60	IN	A	170.114.10.75
zoom.us.		172800	IN	NS	ns-1137.awsdns-14.org.
zoom.us.		172800	IN	NS	ns-1772.awsdns-29.co.uk.
zoom.us.		172800	IN	NS	ns-387.awsdns-48.com.
zoom.us.		172800	IN	NS	ns-888.awsdns-47.net.
;; Received 192 bytes from 205.251.198.236#53(ns-1772.awsdns-29.co.uk) in 24 ms
                johnpozJ 1 Reply Last reply Reply Quote 0
                • johnpozJ Offline
                  johnpoz LAYER 8 Global Moderator @david_moo
                  last edited by johnpoz

                  @david_moo what does the imac say when just dig zoom.us

                  its says servfail?

                  what about www.zoom.us, which is just the cname that points to zoom.us

                  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 25.07 | Lab VMs 2.8, 25.07

                  D 1 Reply Last reply Reply Quote 0
                  • D Offline
                    david_moo @johnpoz
                    last edited by

                    @johnpoz

                    same

                    david@iMac Desktop % dig www.zoom.us +trace

; <<>> DiG 9.10.6 <<>> www.zoom.us +trace
;; global options: +cmd
;; Received 17 bytes from 192.168.9.1#53(192.168.9.1) in 0 ms

                    but remove the trace and all is ok? MacOS trace issue?

                    david@iMac Desktop % dig www.zoom.us  +nodnssec

; <<>> DiG 9.10.6 <<>> www.zoom.us +nodnssec
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34020
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;www.zoom.us.			IN	A

;; ANSWER SECTION:
www.zoom.us.		231	IN	CNAME	zoom.us.
zoom.us.		60	IN	A	170.114.10.74

;; Query time: 23 msec
;; SERVER: 192.168.9.1#53(192.168.9.1)
;; WHEN: Mon Jan 31 16:24:26 AST 2022
;; MSG SIZE  rcvd: 70
                    johnpozJ 1 Reply Last reply Reply Quote 0
                    • johnpozJ Offline
                      johnpoz LAYER 8 Global Moderator @david_moo
                      last edited by

                      @david_moo what does it do with just

                      dig zoom.us

                      before you got a servfail? Is that still happening?

                      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 25.07 | Lab VMs 2.8, 25.07

                      D 1 Reply Last reply Reply Quote 0
                      • D Offline
                        david_moo @johnpoz
                        last edited by

                        @johnpoz

                        No it's working.

                        david@iMac Desktop % dig zoom.us

; <<>> DiG 9.10.6 <<>> zoom.us
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37066
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;zoom.us.			IN	A

;; ANSWER SECTION:
zoom.us.		60	IN	A	170.114.10.77

;; Query time: 23 msec
;; SERVER: 192.168.9.1#53(192.168.9.1)
;; WHEN: Mon Jan 31 17:20:38 AST 2022
;; MSG SIZE  rcvd: 52

                        so in theory everything is ok.

                        johnpozJ 1 Reply Last reply Reply Quote 0
                        • johnpozJ Offline
                          johnpoz LAYER 8 Global Moderator @david_moo
                          last edited by johnpoz

                          @david_moo yeah sure looks like it to me.. Servfails can be tricky sometimes to track down - its an error, but its very vague ;) Going forward there with newer versions of dns clients and servers be possible to get a rcode back via ede that will give you clue to why exactly it failed, etc.

                          https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-6

                          edns and the ede can provide lots of info to what is going on, what went wrong, etc.

                          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 25.07 | Lab VMs 2.8, 25.07

                          D 1 Reply Last reply Reply Quote 0
                          • D Offline
                            david_moo @johnpoz
                            last edited by

                            @johnpoz

                            Awsome. Nice RFC should help things when implemented.

                            johnpozJ 1 Reply Last reply Reply Quote 0
                            • johnpozJ Offline
                              johnpoz LAYER 8 Global Moderator @david_moo
                              last edited by johnpoz

                              @david_moo here is prob easier to read with info

                              https://tools.ietf.org/id/draft-ietf-dnsop-extended-error-11.html

                              I think I saw somewhere while back cloudflare was starting to provide EDE codes.. Let me see if can find that article

                              edit: here you go
                              https://blog.cloudflare.com/unwrap-the-servfail/

                              in the days of just asking your ISP dns, it either worked or it didn't asking for something. But when you start to run your own actual resolver like unbound does out of the box.. Sometimes you need to get a bit deeper into the weeds on why something specific isn't working.. Servfail is just a catch all that doesn't really give you even hint to what is wrong ;) Other than what you asked for failed ;)

                              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 25.07 | Lab VMs 2.8, 25.07

                              1 Reply Last reply Reply Quote 0
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