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    Strange issue - not sure how to fix

    Scheduled Pinned Locked Moved General pfSense Questions
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    • P
      pfguy2018
      last edited by

      Other than rebooting, is there anything else I can try to get Unbound connected to the root servers when this occurs again?

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by johnpoz

        @pfguy2018 said in Strange issue - not sure how to fix:

        which internally sets its own DNS to cloudfare DNS

        Mine doesn't - I have that shit turned off!! F that going to hand everything to cloudflare..

        I would validate the query is actually going out, or not... Do a sniff on your wan - are you seeing dns going out.. Up the logging of unbound to see if you can see errors, etc.

        If your saying restarting unbound doesn't fix it but reboot, then points to something with the connection... Sniff to see if your dns goes out and your just not getting an answer.

        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

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        • P
          pfguy2018
          last edited by

          I don't see any errors in the unbound log at level 2 or 3 logging. I am not sure how to sniff the WAN traffic - can you point me to some instructions for how to do that?

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          • johnpozJ
            johnpoz LAYER 8 Global Moderator
            last edited by

            Go to diag menu, packet capture - pick your wan interface.

            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

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            • P
              pfguy2018
              last edited by

              Doing that, how do I check if the root servers are being queried?

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by

                Well query something ;) While your sniffing..

                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

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                • P
                  pfguy2018
                  last edited by

                  OK, now I just have to wait for the DNS resolution to start failing again before I sniff the traffic. Will report back later.

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                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator
                    last edited by johnpoz

                    You sniff now right to get a feel for what sort of traffic you see, etc. When its working...

                    You might want to grab say wireshark for your pc, so you can load the capture into that - download on the diag page.. This will give you way more insight and details of what is going on.. But really your just wanting to see that hey the query went out.. Did you or did you not get an answer..

                    What you were showing you were having timeouts..

                    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

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                    • P
                      pfguy2018
                      last edited by

                      I am trying to post the traffic output, but it is being flagged as spam by the software running the forum, and I can't post it.

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                      • P
                        pfguy2018
                        last edited by

                        08:57:57.060415 ARP, Request who-has 99.228.243.128 tell 99.228.242.1, length 46
                        08:57:57.071807 IP xxx.xxx.xxx.xxx > 99.228.144.1: ICMP echo request, id 42349, seq 6292, length 8
                        08:57:57.082227 IP 99.228.144.1 > xxx.xxx.xxx.xxx: ICMP echo reply, id 42349, seq 6292, length 8
                        08:57:57.084566 IP xxx.xxx.xxx.xxx.23495 > 24.156.130.43.80: tcp 442
                        08:57:57.092988 IP 24.156.130.43.80 > xxx.xxx.xxx.xxx.23495: tcp 0
                        08:57:57.097414 ARP, Request who-has 206.188.75.254 tell 206.188.75.225, length 46
                        08:57:57.100039 IP 24.156.130.43.80 > xxx.xxx.xxx.xxx.23495: tcp 1448
                        08:57:57.100058 IP 24.156.130.43.80 > xxx.xxx.xxx.xxx.23495: tcp 572
                        08:57:57.101500 IP xxx.xxx.xxx.xxx.23495 > 24.156.130.43.80: tcp 0
                        08:57:57.115341 ARP, Request who-has 99.228.195.183 tell 99.228.194.1, length 46
                        08:57:57.132347 ARP, Request who-has 209.142.43.80 tell 209.142.43.65, length 46
                        08:57:57.136346 ARP, Request who-has 104.158.199.48 tell 104.158.199.33, length 46
                        08:57:57.153353 ARP, Request who-has 72.53.212.137 tell 72.53.212.129, length 46
                        08:57:57.155347 ARP, Request who-has 99.228.150.0 tell 99.228.150.1, length 46
                        08:57:57.157348 ARP, Request who-has 135.23.223.90 tell 135.23.223.65, length 46
                        08:57:57.176453 ARP, Request who-has 108.168.98.253 tell 108.168.98.225, length 46
                        08:57:57.183379 ARP, Request who-has 99.228.197.247 tell 99.228.196.1, length 46
                        08:57:57.189359 ARP, Request who-has 99.228.237.142 tell 99.228.236.1, length 46
                        08:57:57.190311 IP xxx.xxx.xxx.xxx.24725 > 151.101.126.99.443: tcp 111
                        08:57:57.192357 ARP, Request who-has 99.228.237.217 tell 99.228.236.1, length 46
                        08:57:57.202537 IP 151.101.126.99.443 > xxx.xxx.xxx.xxx.24725: tcp 1448
                        08:57:57.202631 IP 151.101.126.99.443 > xxx.xxx.xxx.xxx.24725: tcp 1340
                        08:57:57.202682 IP 151.101.126.99.443 > xxx.xxx.xxx.xxx.24725: tcp 1448
                        08:57:57.202876 IP 151.101.126.99.443 > xxx.xxx.xxx.xxx.24725: tcp 1340
                        
                        
                        
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                        • P
                          pfguy2018
                          last edited by

                          I was able to post part of it above. Not sure if it contains any useful info.

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                          • johnpozJ
                            johnpoz LAYER 8 Global Moderator
                            last edited by johnpoz

                            None of that is dns... Port 53 is dns..

                            This is dns traffic

                            08:51:11.915816 IP 64.53.xxx.xxx.1499 > 204.13.251.3.53: UDP, length 47
                            08:51:11.916510 IP 64.53.xxx.xxx.24691 > 208.78.71.3.53: UDP, length 47
                            08:51:11.918974 IP 64.53.xxx.xxx.63171 > 208.80.125.4.53: UDP, length 46
                            08:51:11.919863 IP 64.53.xxx.xxx.29586 > 208.80.126.4.53: UDP, length 46
                            08:51:11.943785 IP 208.80.126.4.53 > 64.53.xxx.xxx.29586: UDP, length 92
                            08:51:11.944094 IP 64.53.xxx.xxx.26752 > 192.229.254.5.53: UDP, length 47
                            08:51:11.945081 IP 208.80.125.4.53 > 64.53.xxx.xxx.63171: UDP, length 95
                            08:51:11.945275 IP 64.53.xxx.xxx.34945 > 72.21.80.6.53: UDP, length 47
                            08:51:11.945456 IP 208.78.71.3.53 > 64.53.xxx.xxx.24691: UDP, length 116
                            08:51:11.945733 IP 64.53.xxx.xxx.29783 > 208.80.125.4.53: UDP, length 46
                            08:51:11.959085 IP 204.13.251.3.53 > 64.53.xxx.xxx.1499: UDP, length 116
                            08:51:11.959591 IP 64.53.xxx.xxx.2756 > 208.80.125.4.53: UDP, length 46
                            08:51:11.963659 IP 192.229.254.5.53 > 64.53.xxx.xxx.26752: UDP, length 63
                            08:51:11.963870 IP 64.53.xxx.xxx.11652 > 192.229.254.6.53: UDP, length 47
                            08:51:11.969938 IP 208.80.125.4.53 > 64.53.xxx.xxx.29783: UDP, length 95
                            08:51:11.970255 IP 64.53.xxx.xxx.42952 > 192.229.254.6.53: UDP, length 47
                            08:51:11.971483 IP 72.21.80.6.53 > 64.53.xxx.xxx.34945: UDP, length 63
                            08:51:11.971721 IP 64.53.xxx.xxx.23430 > 72.21.80.6.53: UDP, length 47
                            08:51:11.976236 IP 208.80.125.4.53 > 64.53.xxx.xxx.2756: UDP, length 95
                            08:51:11.976409 IP 64.53.xxx.xxx.57024 > 72.21.80.5.53: UDP, length 47
                            08:51:11.977384 IP 192.229.254.6.53 > 64.53.xxx.xxx.11652: UDP, length 63
                            

                            And if open in wireshark I can see info..
                            dns.jpg

                            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

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                            • P
                              pfguy2018
                              last edited by

                              Here is the port 53 UDP traffic when running the dig feedly.com +trace command

                              09:51:27.591255 IP 72.246.46.129.53 > xxx.xxx.xxx.xxx.22371: UDP, length 63
                              09:51:27.592186 IP xxx.xxx.xxx.xxx.13656 > 23.61.199.64.53: UDP, length 44
                              09:51:27.596218 IP 192.5.5.241.53 > xxx.xxx.xxx.xxx.17958: UDP, length 786
                              09:51:27.596325 IP 199.19.56.1.53 > xxx.xxx.xxx.xxx.51001: UDP, length 1021
                              09:51:27.596694 IP xxx.xxx.xxx.xxx.28502 > 43.230.48.1.53: UDP, length 34
                              09:51:27.597226 IP xxx.xxx.xxx.xxx.54324 > 2.16.130.131.53: UDP, length 47
                              09:51:27.598180 IP 84.53.139.66.53 > xxx.xxx.xxx.xxx.17594: UDP, length 113
                              09:51:27.598532 IP xxx.xxx.xxx.xxx.50451 > 23.211.132.65.53: UDP, length 54
                              09:51:27.602183 IP 23.211.133.131.53 > xxx.xxx.xxx.xxx.61509: UDP, length 62
                              09:51:27.602257 IP 184.26.161.130.53 > xxx.xxx.xxx.xxx.19037: UDP, length 63
                              09:51:27.604184 IP 217.160.81.195.53 > xxx.xxx.xxx.xxx.27810: UDP, length 62
                              09:51:27.605758 IP 217.160.83.196.53 > xxx.xxx.xxx.xxx.36489: UDP, length 62
                              09:51:27.605868 IP 192.41.162.30.53 > xxx.xxx.xxx.xxx.37184: UDP, length 745
                              09:51:27.606422 IP xxx.xxx.xxx.xxx.28094 > 217.160.82.194.53: UDP, length 46
                              09:51:27.606709 IP xxx.xxx.xxx.xxx.42365 > 217.160.81.195.53: UDP, length 46
                              09:51:27.607408 IP 192.42.93.30.53 > xxx.xxx.xxx.xxx.64205: UDP, length 1374
                              09:51:27.608006 IP xxx.xxx.xxx.xxx.10823 > 199.7.91.13.53: UDP, length 47
                              09:51:27.608960 IP 96.7.49.129.53 > xxx.xxx.xxx.xxx.29227: UDP, length 109
                              09:51:27.609059 IP 193.108.88.128.53 > xxx.xxx.xxx.xxx.24107: UDP, length 116
                              09:51:27.609384 IP xxx.xxx.xxx.xxx.58014 > 2.22.230.130.53: UDP, length 65
                              09:51:27.610087 IP xxx.xxx.xxx.xxx.29106 > 193.108.88.128.53: UDP, length 58
                              09:51:27.610604 IP 199.249.112.1.53 > xxx.xxx.xxx.xxx.24105: UDP, length 1021
                              09:51:27.611073 IP xxx.xxx.xxx.xxx.59245 > 2.16.130.131.53: UDP, length 47
                              09:51:27.612161 IP 217.160.83.196.53 > xxx.xxx.xxx.xxx.4652: UDP, length 62
                              09:51:27.612257 IP 23.74.25.128.53 > xxx.xxx.xxx.xxx.35281: UDP, length 63
                              09:51:27.612334 IP 95.100.168.128.53 > xxx.xxx.xxx.xxx.35288: UDP, length 63
                              09:51:27.614307 IP 216.239.34.10.53 > xxx.xxx.xxx.xxx.56661: UDP, length 64
                              09:51:27.615835 IP 217.160.82.194.53 > xxx.xxx.xxx.xxx.30538: UDP, length 62
                              09:51:27.615934 IP 217.160.83.196.53 > xxx.xxx.xxx.xxx.29119: UDP, length 62
                              09:51:27.616010 IP 217.160.82.194.53 > xxx.xxx.xxx.xxx.26764: UDP, length 62
                              09:51:27.616110 IP 217.160.83.196.53 > xxx.xxx.xxx.xxx.35771: UDP, length 62
                              09:51:27.616185 IP 217.160.83.196.53 > xxx.xxx.xxx.xxx.32909: UDP, length 62
                              09:51:27.617363 IP 217.160.81.195.53 > xxx.xxx.xxx.xxx.21281: UDP, length 62
                              09:51:27.617460 IP 217.160.82.194.53 > xxx.xxx.xxx.xxx.13681: UDP, length 62
                              09:51:27.626193 IP 216.239.34.10.53 > xxx.xxx.xxx.xxx.48475: UDP, length 71
                              09:51:27.630169 IP 23.211.132.65.53 > xxx.xxx.xxx.xxx.50451: UDP, length 113
                              09:51:27.630273 IP 81.91.164.5.53 > xxx.xxx.xxx.xxx.47478: UDP, length 691
                              09:51:27.630882 IP xxx.xxx.xxx.xxx.29570 > 217.160.80.193.53: UDP, length 45
                              09:51:27.630885 IP xxx.xxx.xxx.xxx.42631 > 95.100.168.130.53: UDP, length 51
                              09:51:27.631227 IP xxx.xxx.xxx.xxx.24142 > 217.160.81.196.53: UDP, length 45
                              09:51:27.631510 IP xxx.xxx.xxx.xxx.48389 > 217.160.82.194.53: UDP, length 45
                              09:51:27.631761 IP xxx.xxx.xxx.xxx.35040 > 217.160.80.193.53: UDP, length 45
                              09:51:27.634252 IP 199.7.91.13.53 > xxx.xxx.xxx.xxx.10823: UDP, length 825
                              09:51:27.636334 IP xxx.xxx.xxx.xxx.10416 > 192.112.36.4.53: UDP, length 47
                              09:51:27.637532 IP 77.67.63.105.53 > xxx.xxx.xxx.xxx.45244: UDP, length 691
                              09:51:27.637936 IP xxx.xxx.xxx.xxx.56311 > 217.160.80.193.53: UDP, length 45
                              09:51:27.638203 IP xxx.xxx.xxx.xxx.49832 > 217.160.82.195.53: UDP, length 45
                              09:51:27.638558 IP xxx.xxx.xxx.xxx.45100 > 217.160.80.193.53: UDP, length 45
                              09:51:27.638841 IP xxx.xxx.xxx.xxx.40751 > 217.160.81.196.53: UDP, length 45
                              09:51:27.639090 IP xxx.xxx.xxx.xxx.15400 > 217.160.80.193.53: UDP, length 45
                              09:51:27.640279 IP 192.33.14.30.53 > xxx.xxx.xxx.xxx.54683: UDP, length 861
                              09:51:27.640641 IP xxx.xxx.xxx.xxx.42994 > 205.251.193.222.53: UDP, length 49
                              09:51:27.641838 IP 23.61.199.64.53 > xxx.xxx.xxx.xxx.13656: UDP, length 75
                              09:51:27.642357 IP xxx.xxx.xxx.xxx.50850 > 23.211.133.65.53: UDP, length 57
                              09:51:27.643439 IP 217.160.81.195.53 > xxx.xxx.xxx.xxx.42365: UDP, length 62
                              09:51:27.643538 IP 217.160.82.194.53 > xxx.xxx.xxx.xxx.28094: UDP, length 62
                              09:51:27.651518 IP 193.108.88.128.53 > xxx.xxx.xxx.xxx.6554: UDP, length 119
                              09:51:27.651878 IP xxx.xxx.xxx.xxx.18779 > 2.22.230.130.53: UDP, length 63
                              09:51:27.652855 IP 192.55.83.30.53 > xxx.xxx.xxx.xxx.30344: UDP, length 860
                              09:51:27.653222 IP xxx.xxx.xxx.xxx.60974 > 205.251.192.36.53: UDP, length 49
                              09:51:27.654541 IP 96.7.50.128.53 > xxx.xxx.xxx.xxx.20917: UDP, length 62
                              09:51:27.656047 IP 205.251.193.222.53 > xxx.xxx.xxx.xxx.42994: UDP, length 335
                              09:51:27.656517 IP xxx.xxx.xxx.xxx.59577 > 205.251.194.236.53: UDP, length 61
                              09:51:27.656820 IP xxx.xxx.xxx.xxx.29228 > 199.249.120.1.53: UDP, length 42
                              09:51:27.657617 IP 2.22.230.67.53 > xxx.xxx.xxx.xxx.64172: UDP, length 60
                              09:51:27.660843 IP 95.100.168.130.53 > xxx.xxx.xxx.xxx.42631: UDP, length 78
                              09:51:27.661332 IP xxx.xxx.xxx.xxx.51498 > 84.53.139.129.53: UDP, length 55
                              09:51:27.664356 IP 194.146.107.6.53 > xxx.xxx.xxx.xxx.63915: UDP, length 691
                              09:51:27.664745 IP xxx.xxx.xxx.xxx.7053 > 217.160.80.193.53: UDP, length 45
                              09:51:27.669345 IP 217.160.80.193.53 > xxx.xxx.xxx.xxx.29570: UDP, length 61
                              09:51:27.670896 IP 23.211.133.65.53 > xxx.xxx.xxx.xxx.50850: UDP, length 93
                              09:51:27.671397 IP xxx.xxx.xxx.xxx.48083 > 192.55.83.30.53: UDP, length 43
                              09:51:27.672499 IP 205.251.192.36.53 > xxx.xxx.xxx.xxx.60974: UDP, length 334
                              09:51:27.672595 IP 217.160.80.193.53 > xxx.xxx.xxx.xxx.35040: UDP, length 61
                              09:51:27.672694 IP 217.160.82.194.53 > xxx.xxx.xxx.xxx.48389: UDP, length 61
                              09:51:27.672771 IP 217.160.80.193.53 > xxx.xxx.xxx.xxx.56311: UDP, length 61
                              09:51:27.672870 IP 217.160.81.196.53 > xxx.xxx.xxx.xxx.24142: UDP, length 61
                              09:51:27.675649 IP 193.108.88.128.53 > xxx.xxx.xxx.xxx.29106: UDP, length 95
                              09:51:27.676171 IP xxx.xxx.xxx.xxx.63756 > 2.22.230.65.53: UDP, length 44
                              09:51:27.679194 IP 217.160.82.195.53 > xxx.xxx.xxx.xxx.49832: UDP, length 61
                              09:51:27.679295 IP 217.160.81.196.53 > xxx.xxx.xxx.xxx.40751: UDP, length 61
                              09:51:27.679370 IP 217.160.80.193.53 > xxx.xxx.xxx.xxx.45100: UDP, length 61
                              09:51:27.680771 IP 217.160.80.193.53 > xxx.xxx.xxx.xxx.15400: UDP, length 61
                              09:51:27.682372 IP 2.16.130.131.53 > xxx.xxx.xxx.xxx.8658: UDP, length 63
                              09:51:27.685197 IP 84.53.139.129.53 > xxx.xxx.xxx.xxx.51498: UDP, length 82
                              09:51:27.685719 IP xxx.xxx.xxx.xxx.51725 > 23.61.199.131.53: UDP, length 63
                              09:51:27.688401 IP 205.251.194.236.53 > xxx.xxx.xxx.xxx.59577: UDP, length 326
                              09:51:27.690010 IP 2.16.130.131.53 > xxx.xxx.xxx.xxx.33996: UDP, length 63
                              09:51:27.691586 IP 192.112.36.4.53 > xxx.xxx.xxx.xxx.10416: UDP, length 825
                              09:51:27.692067 IP xxx.xxx.xxx.xxx.23482 > 192.33.4.12.53: UDP, length 47
                              09:51:27.693312 IP 199.249.120.1.53 > xxx.xxx.xxx.xxx.29228: UDP, length 805
                              09:51:27.693687 IP xxx.xxx.xxx.xxx.32444 > 205.251.196.15.53: UDP, length 50
                              09:51:27.698206 IP 217.160.80.193.53 > xxx.xxx.xxx.xxx.7053: UDP, length 61
                              09:51:27.698273 IP 2.22.230.130.53 > xxx.xxx.xxx.xxx.58014: UDP, length 104
                              09:51:27.698984 IP xxx.xxx.xxx.xxx.60192 > 192.5.6.30.53: UDP, length 43
                              09:51:27.699784 IP 195.243.137.26.53 > xxx.xxx.xxx.xxx.24580: UDP, length 691
                              09:51:27.700132 IP xxx.xxx.xxx.xxx.9782 > 217.160.82.193.53: UDP, length 45
                              09:51:27.701374 IP 2.16.130.131.53 > xxx.xxx.xxx.xxx.30060: UDP, length 63
                              09:51:27.702983 IP 43.230.48.1.53 > xxx.xxx.xxx.xxx.28502: UDP, length 546
                              09:51:27.703322 IP xxx.xxx.xxx.xxx.33833 > 213.248.216.1.53: UDP, length 44
                              
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                              • johnpozJ
                                johnpoz LAYER 8 Global Moderator
                                last edited by johnpoz

                                Open that up in wireshark and you can see way more info on what is being asked, what is being returned... See my edit above post.

                                But for example, you see that query to 192.33.4.12 that is one of the root servers.

                                ;; QUESTION SECTION:
                                ;12.4.33.192.in-addr.arpa.      IN      PTR
                                
                                ;; ANSWER SECTION:
                                12.4.33.192.in-addr.arpa. 10800 IN      PTR     c.root-servers.net.
                                

                                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

                                P 1 Reply Last reply Reply Quote 0
                                • P
                                  pfguy2018 @johnpoz
                                  last edited by

                                  @johnpoz
                                  So that would suggest that things are working right now? Which is good. I will repeat this traffic capture once things go south again.

                                  I have installed Wireshark, but am not sure how to get my traffic into it from the text file I have. Any pointers there?

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                                  • johnpozJ
                                    johnpoz LAYER 8 Global Moderator
                                    last edited by

                                    Not the text that is shown, the download button.

                                    downloadpcap.jpg

                                    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

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                                    • P
                                      pfguy2018
                                      last edited by

                                      Great - got it. Now how do I edit out my ip address prior to posting the output? There does not seem to be any replace function in the UI that I can see.

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                                      • P
                                        pfguy2018 @pfguy2018
                                        last edited by

                                        @pfguy2018
                                        NVM - figured that out
                                        Here is some of the output from the capture I posted above
                                        Screen Shot 2020-02-23 at 10.18.30 AM copy.jpg

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                                        • P
                                          pfguy2018
                                          last edited by

                                          It's a little hard to read the image, but there do appear to be successful queries to the root servers, as expected. So I will repeat this capture once the domain question stops resolving, to see if there are any differences in the traffic.

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                                          • johnpozJ
                                            johnpoz LAYER 8 Global Moderator
                                            last edited by johnpoz

                                            Exactly the big question is are you actually sending the queries and just not getting an answer.. Or are you not sending them at all..

                                            If it was just something hung up in unbound, you would think a restart of it would fix it... But your having to reboot... Which makes less sense unless its something with the actual wan connection.

                                            You should always know the IPs of the roots, because you don't have to query for them - its in the hints file.. So you should always be able to query for IP of a root server even if no wan connectivity..

                                            [2.4.4-RELEASE][admin@sg4860.local.lan]/root: dig h.root-servers.net
                                            
                                            ; <<>> DiG 9.12.2-P1 <<>> h.root-servers.net
                                            ;; global options: +cmd
                                            ;; Got answer:
                                            ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34795
                                            ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
                                            
                                            ;; OPT PSEUDOSECTION:
                                            ; EDNS: version: 0, flags:; udp: 4096
                                            ;; QUESTION SECTION:
                                            ;h.root-servers.net.            IN      A
                                            
                                            ;; ANSWER SECTION:
                                            h.root-servers.net.     25823   IN      A       198.97.190.53
                                            
                                            ;; Query time: 0 msec
                                            ;; SERVER: 127.0.0.1#53(127.0.0.1)
                                            ;; WHEN: Sun Feb 23 09:30:53 CST 2020
                                            ;; MSG SIZE  rcvd: 63
                                            

                                            You should be able to ask unbound this way as well how it would look up NS for a tld... When it fails again.. I would check this as well to see what the output is..

                                            [2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf lookup com
                                            The following name servers are used for lookup of com.
                                            ;rrset 80980 13 0 2 0
                                            com.    80980   IN      NS      b.gtld-servers.net.
                                            com.    80980   IN      NS      e.gtld-servers.net.
                                            com.    80980   IN      NS      c.gtld-servers.net.
                                            com.    80980   IN      NS      h.gtld-servers.net.
                                            com.    80980   IN      NS      l.gtld-servers.net.
                                            com.    80980   IN      NS      a.gtld-servers.net.
                                            com.    80980   IN      NS      k.gtld-servers.net.
                                            com.    80980   IN      NS      g.gtld-servers.net.
                                            com.    80980   IN      NS      i.gtld-servers.net.
                                            com.    80980   IN      NS      f.gtld-servers.net.
                                            com.    80980   IN      NS      d.gtld-servers.net.
                                            com.    80980   IN      NS      j.gtld-servers.net.
                                            com.    80980   IN      NS      m.gtld-servers.net.
                                            ;rrset 80980 1 1 11 5
                                            com.    80980   IN      DS      30909 8 2 E2D3C916F6DEEAC73294E8268FB5885044A833FC5459588F4A9184CFC41A5766
                                            com.    80980   IN      RRSIG   DS 8 1 86400 20200307050000 20200223040000 33853 . sLV0mt5DtczNJfepnGzpEjM5Gctb51i5Spnjk63LfpKu0YiWw160w9zDis/RoclzEKIAQ1wSWJNo04uBOQg7VAQ646bPoEcvSQ2Y7GJap4FqVIdAS3o5pJhKKmqeSVJxQ/aaj1BQAaWEFaU9yIvtnNWL7Lg0wUakZ483FTUxknRzTVHEVhNhnLUdjUcxEId0wEmmrkfsc5yiqRV9fYcOXUEZwFrV8YaoOTKaXKeL69zA2S4CJyXqQMbzFndPEE3/FnIhk3F19JfLgya8kwKTKbX22JJImxbmXA4zMTI8efnhlJ/ZS5QuuPcY2P2r+qVITs2Ibv2gvVBCYJltNxxaEQ== ;{id = 33853}
                                            ;rrset 25739 1 0 8 3
                                            m.gtld-servers.net.     25739   IN      A       192.55.83.30
                                            ;rrset 25739 1 0 8 3
                                            m.gtld-servers.net.     25739   IN      AAAA    2001:501:b1f9::30
                                            ;rrset 25738 1 0 8 3
                                            j.gtld-servers.net.     25738   IN      A       192.48.79.30
                                            ;rrset 25738 1 0 8 3
                                            j.gtld-servers.net.     25738   IN      AAAA    2001:502:7094::30
                                            ;rrset 25737 1 0 8 3
                                            d.gtld-servers.net.     25737   IN      A       192.31.80.30
                                            ;rrset 25737 1 0 8 3
                                            d.gtld-servers.net.     25737   IN      AAAA    2001:500:856e::30
                                            ;rrset 25737 1 0 8 3
                                            f.gtld-servers.net.     25737   IN      A       192.35.51.30
                                            ;rrset 25737 1 0 8 3
                                            f.gtld-servers.net.     25737   IN      AAAA    2001:503:d414::30
                                            ;rrset 25738 1 0 8 3
                                            i.gtld-servers.net.     25738   IN      A       192.43.172.30
                                            ;rrset 25738 1 0 8 3
                                            i.gtld-servers.net.     25738   IN      AAAA    2001:503:39c1::30
                                            ;rrset 25738 1 0 8 3
                                            g.gtld-servers.net.     25738   IN      A       192.42.93.30
                                            ;rrset 25738 1 0 8 3
                                            g.gtld-servers.net.     25738   IN      AAAA    2001:503:eea3::30
                                            ;rrset 25738 1 0 8 3
                                            k.gtld-servers.net.     25738   IN      A       192.52.178.30
                                            ;rrset 25738 1 0 8 3
                                            k.gtld-servers.net.     25738   IN      AAAA    2001:503:d2d::30
                                            ;rrset 25737 1 0 8 3
                                            a.gtld-servers.net.     25737   IN      A       192.5.6.30
                                            ;rrset 25737 1 0 8 3
                                            a.gtld-servers.net.     25737   IN      AAAA    2001:503:a83e::2:30
                                            ;rrset 25738 1 0 8 3
                                            l.gtld-servers.net.     25738   IN      A       192.41.162.30
                                            ;rrset 25739 1 0 8 3
                                            l.gtld-servers.net.     25739   IN      AAAA    2001:500:d937::30
                                            ;rrset 25738 1 0 8 3
                                            h.gtld-servers.net.     25738   IN      A       192.54.112.30
                                            ;rrset 25738 1 0 8 3
                                            h.gtld-servers.net.     25738   IN      AAAA    2001:502:8cc::30
                                            ;rrset 25737 1 0 8 3
                                            c.gtld-servers.net.     25737   IN      A       192.26.92.30
                                            ;rrset 25737 1 0 8 3
                                            c.gtld-servers.net.     25737   IN      AAAA    2001:503:83eb::30
                                            ;rrset 25737 1 0 8 3
                                            e.gtld-servers.net.     25737   IN      A       192.12.94.30
                                            ;rrset 25737 1 0 8 3
                                            e.gtld-servers.net.     25737   IN      AAAA    2001:502:1ca1::30
                                            ;rrset 25737 1 0 8 3
                                            b.gtld-servers.net.     25737   IN      A       192.33.14.30
                                            ;rrset 25737 1 0 8 3
                                            b.gtld-servers.net.     25737   IN      AAAA    2001:503:231d::2:30
                                            Delegation with 13 names, of which 0 can be examined to query further addresses.
                                            It provides 26 IP addresses.
                                            2001:503:231d::2:30     rto 376 msec, ttl 460, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.33.14.30            not in infra cache.
                                            2001:502:1ca1::30       rto 376 msec, ttl 460, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.12.94.30            rto 191 msec, ttl 302, ping 15 var 44 rtt 191, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:503:83eb::30       rto 376 msec, ttl 171, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.26.92.30            rto 183 msec, ttl 302, ping 15 var 42 rtt 183, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:502:8cc::30        not in infra cache.
                                            192.54.112.30           rto 243 msec, ttl 294, ping 3 var 60 rtt 243, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:500:d937::30       rto 376 msec, ttl 302, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.41.162.30           rto 285 msec, ttl 473, ping 17 var 67 rtt 285, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:503:a83e::2:30     rto 376 msec, ttl 460, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.5.6.30              rto 279 msec, ttl 733, ping 7 var 68 rtt 279, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:503:d2d::30        rto 376 msec, ttl 302, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.52.178.30           rto 317 msec, ttl 711, ping 13 var 76 rtt 317, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:503:eea3::30       rto 376 msec, ttl 460, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.42.93.30            rto 327 msec, ttl 91, ping 23 var 76 rtt 327, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:503:39c1::30       rto 376 msec, ttl 711, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.43.172.30           rto 214 msec, ttl 268, ping 6 var 52 rtt 214, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:503:d414::30       rto 376 msec, ttl 171, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.35.51.30            rto 365 msec, ttl 473, ping 9 var 89 rtt 365, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:500:856e::30       rto 376 msec, ttl 171, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.31.80.30            rto 238 msec, ttl 302, ping 10 var 57 rtt 238, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:502:7094::30       not in infra cache.
                                            192.48.79.30            rto 302 msec, ttl 706, ping 2 var 75 rtt 302, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:501:b1f9::30       not in infra cache.
                                            192.55.83.30            rto 351 msec, ttl 706, ping 7 var 86 rtt 351, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            [2.4.4-RELEASE][admin@sg4860.local.lan]/root: 
                                            

                                            To validate it actually has IPs for roots.

                                            [2.4.4-RELEASE][admin@sg4860.local.lan]/root: unbound-control -c /var/unbound/unbound.conf lookup .
                                            The following name servers are used for lookup of .
                                            ;rrset 80411 13 1 11 5
                                            .       80411   IN      NS      k.root-servers.net.
                                            .       80411   IN      NS      b.root-servers.net.
                                            .       80411   IN      NS      m.root-servers.net.
                                            .       80411   IN      NS      c.root-servers.net.
                                            .       80411   IN      NS      d.root-servers.net.
                                            .       80411   IN      NS      l.root-servers.net.
                                            .       80411   IN      NS      h.root-servers.net.
                                            .       80411   IN      NS      j.root-servers.net.
                                            .       80411   IN      NS      g.root-servers.net.
                                            .       80411   IN      NS      e.root-servers.net.
                                            .       80411   IN      NS      f.root-servers.net.
                                            .       80411   IN      NS      a.root-servers.net.
                                            .       80411   IN      NS      i.root-servers.net.
                                            .       80411   IN      RRSIG   NS 8 0 518400 20200307050000 20200223040000 33853 . OywKX+NljD5Qsir5p4YY6Cz4raE6/1M5peyPyBymFCakHkG2tKG6u8k70cjNe/VAyYG0JPkqOFJ7I4+gzCqODab/8Vc18hClQ3XO6yj5IsdWcl5w+GgI7DFO5Tk7Bhx/5HqCNEXrmiCr8u1qvry0cdgmOO8iYvMDSXnT4FlGt49DIr4msrRU6Fsr0yjamoBVdcEaQwU9KDptzbMDnqJVL2FYGnpftrVanszm6Vs8q2iZivNlmTL1b2QKFidqI8DLs6V2yIPMbCOHFdAwlfw6LpWUaQhUxmxdsfBn28QUonZTUz/BOWpzWRmXDb2TDo1ofUkoOLvj7pHJvC7JEt07Zg== ;{id = 33853}
                                            ;rrset 25166 1 0 8 3
                                            i.root-servers.net.     25166   IN      A       192.36.148.17
                                            ;rrset 25166 1 0 8 3
                                            i.root-servers.net.     25166   IN      AAAA    2001:7fe::53
                                            ;rrset 25167 1 0 8 3
                                            a.root-servers.net.     25167   IN      A       198.41.0.4
                                            ;rrset 25167 1 0 8 3
                                            a.root-servers.net.     25167   IN      AAAA    2001:503:ba3e::2:30
                                            ;rrset 25166 1 0 8 3
                                            f.root-servers.net.     25166   IN      A       192.5.5.241
                                            ;rrset 25166 1 0 8 3
                                            f.root-servers.net.     25166   IN      AAAA    2001:500:2f::f
                                            ;rrset 25165 1 0 8 3
                                            e.root-servers.net.     25165   IN      A       192.203.230.10
                                            ;rrset 25165 1 0 8 3
                                            e.root-servers.net.     25165   IN      AAAA    2001:500:a8::e
                                            ;rrset 25166 1 0 8 3
                                            g.root-servers.net.     25166   IN      A       192.112.36.4
                                            ;rrset 25166 1 0 8 3
                                            g.root-servers.net.     25166   IN      AAAA    2001:500:12::d0d
                                            ;rrset 25167 1 0 8 3
                                            j.root-servers.net.     25167   IN      A       192.58.128.30
                                            ;rrset 25167 1 0 8 3
                                            j.root-servers.net.     25167   IN      AAAA    2001:503:c27::2:30
                                            ;rrset 25164 1 0 8 3
                                            h.root-servers.net.     25164   IN      A       198.97.190.53
                                            ;rrset 25164 1 0 8 3
                                            h.root-servers.net.     25164   IN      AAAA    2001:500:1::53
                                            ;rrset 25167 1 0 8 3
                                            l.root-servers.net.     25167   IN      A       199.7.83.42
                                            ;rrset 25167 1 0 8 3
                                            l.root-servers.net.     25167   IN      AAAA    2001:500:9f::42
                                            ;rrset 25167 1 0 8 3
                                            d.root-servers.net.     25167   IN      A       199.7.91.13
                                            ;rrset 25167 1 0 8 3
                                            d.root-servers.net.     25167   IN      AAAA    2001:500:2d::d
                                            ;rrset 25165 1 0 8 3
                                            c.root-servers.net.     25165   IN      A       192.33.4.12
                                            ;rrset 25166 1 0 8 3
                                            c.root-servers.net.     25166   IN      AAAA    2001:500:2::c
                                            ;rrset 25165 1 0 8 3
                                            m.root-servers.net.     25165   IN      A       202.12.27.33
                                            ;rrset 25165 1 0 8 3
                                            m.root-servers.net.     25165   IN      AAAA    2001:dc3::35
                                            ;rrset 25166 1 0 8 3
                                            b.root-servers.net.     25166   IN      A       199.9.14.201
                                            ;rrset 25167 1 0 8 3
                                            b.root-servers.net.     25167   IN      AAAA    2001:500:200::b
                                            ;rrset 25165 1 0 8 3
                                            k.root-servers.net.     25165   IN      A       193.0.14.129
                                            ;rrset 25165 1 0 8 3
                                            k.root-servers.net.     25165   IN      AAAA    2001:7fd::1
                                            Delegation with 13 names, of which 0 can be examined to query further addresses.
                                            It provides 26 IP addresses.
                                            2001:7fd::1             rto 376 msec, ttl 751, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            193.0.14.129            not in infra cache.
                                            2001:500:200::b         not in infra cache.
                                            199.9.14.201            rto 369 msec, ttl 481, ping 9 var 90 rtt 369, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:dc3::35            rto 376 msec, ttl 751, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            202.12.27.33            not in infra cache.
                                            2001:500:2::c           not in infra cache.
                                            192.33.4.12             not in infra cache.
                                            2001:500:2d::d          not in infra cache.
                                            199.7.91.13             not in infra cache.
                                            2001:500:9f::42         rto 376 msec, ttl 751, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            199.7.83.42             rto 356 msec, ttl 751, ping 8 var 87 rtt 356, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:500:1::53          not in infra cache.
                                            198.97.190.53           not in infra cache.
                                            2001:503:c27::2:30      rto 376 msec, ttl 751, ping 0 var 94 rtt 376, tA 0, tAAAA 0, tother 0, EDNS 0 assumed.
                                            192.58.128.30           not in infra cache.
                                            2001:500:12::d0d        not in infra cache.
                                            192.112.36.4            rto 328 msec, ttl 751, ping 4 var 81 rtt 328, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:500:a8::e          not in infra cache.
                                            192.203.230.10          not in infra cache.
                                            2001:500:2f::f          not in infra cache.
                                            192.5.5.241             rto 320 msec, ttl 751, ping 4 var 79 rtt 320, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:503:ba3e::2:30     not in infra cache.
                                            198.41.0.4              rto 256 msec, ttl 228, ping 4 var 63 rtt 256, tA 0, tAAAA 0, tother 0, EDNS 0 probed.
                                            2001:7fe::53            not in infra cache.
                                            192.36.148.17           not in infra cache.
                                            [2.4.4-RELEASE][admin@sg4860.local.lan]/root: 
                                            

                                            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

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