I have some questions about this situation. What causes this "address fetching loop"? Maybe it's a bug/future in the BIND software? Misconfigured .BY zone and its servers? Problem with root servers or TLD? Why does my server have this problem, but other servers don't?
пт, 1 апр. 2022 г. в 23:41, Mark Andrews <ma...@isc.org>: > Add a static-stub zone for .by which has the addresses of the nameservers > for .by configured. This will break the stupid address fetching loop. > > The real fix is for .by to use nameservers that are directly in .by or > ones thot don’t require a loop to get there addresses. > > -- > Mark Andrews > > On 2 Apr 2022, at 07:10, Dzmitry Shykuts <dshyk...@gmail.com> wrote: > > > Can anyone suggest something? Can someone tell me which server timeout? I > would be very happy for any help! > > вт, 29 мар. 2022 г. в 17:02, Dzmitry Shykuts <dshyk...@gmail.com>: > >> Hello! Can anybody help me with periodic and critical for me SERVFAIL? >> Cannot determine the source of the problem. >> >> I have Debian 11.3 and BIND9 9.16.27 on it. There was no such problem >> earlier. >> >> I do request: >> >> <<>> DiG 9.16.27-Debian <<>> 103.by +trace >> ;; global options: +cmd >> . 518377 IN NS e.root-servers.net. >> . 518377 IN NS a.root-servers.net. >> . 518377 IN NS h.root-servers.net. >> . 518377 IN NS k.root-servers.net. >> . 518377 IN NS b.root-servers.net. >> . 518377 IN NS i.root-servers.net. >> . 518377 IN NS j.root-servers.net. >> . 518377 IN NS d.root-servers.net. >> . 518377 IN NS c.root-servers.net. >> . 518377 IN NS m.root-servers.net. >> . 518377 IN NS f.root-servers.net. >> . 518377 IN NS g.root-servers.net. >> . 518377 IN NS l.root-servers.net. >> . 518377 IN RRSIG NS 8 0 518400 20220411050000 20220329040000 9799 . >> keszTJZg3TCzY3s4UyinKYe7VwZGGf/8kHoWzJ2Ab3n4ctBt8gtleqC0 >> UZqIIjc9Ez9srWGGeNn2gRUtB65QvL99oX5gD5VI6h1SY81OC0HcBx2c >> 80SZJ0s9qpNmkDDcp4EUNlgoheDkBAtB3MsIRIVA6T746gBthcVKLHxC >> rpOy7ELdgDtHwtq8jL5QIFae6QlIGuO95nflzk31VoL/yhCxvpzIXEfq >> QJlJQf21YJtAtYnY7vJJwuDVT20y/cj5W7PNxSkNLMoukqUXOeH/w2yB >> 0yNkwbKLBZUkyrE5tQmlq5AnScofbT7ffOYB9o9ug39DgCTcqSeNZDYX 0Gekmg== >> ;; Received 1137 bytes from 127.0.0.1#53(127.0.0.1) in 3 ms >> >> by. 172800 IN NS dns5.tld.becloudby.com. >> by. 172800 IN NS dns2.tld.becloudby.com. >> by. 172800 IN NS dns3.tld.becloudby.com. >> by. 172800 IN NS dns4.tld.becloudby.com. >> by. 172800 IN NS dns1.tld.becloudby.com. >> by. 86400 IN DS 495 13 2 >> 2D14284F8E47B53F839BD8068D438680B4B6C7A645769C9D89B47DF0 C5359B7B >> by. 86400 IN RRSIG DS 8 1 86400 20220411050000 20220329040000 9799 . >> IAk+oEOmuQVbb8RyxB9ML/GOwnLIaQdi0XMD8Y7san2AIx2lXeEZp3AV >> fNgYQfTnVrGyi3ylXNkVmQXnqDdrPK8iJu6mKvmaI40sQwv8xDyx5Fnz >> VaNHcY4+J3fQwSp+TrFxQuAlW3g3CFaUVNLk20V/TQUycVA75c+3TrW4 >> IQJ1aua0lDsG1JS7BigHryUH9Vy8nSyuikYOIiML0BTTTqFQN7yk4AiE >> 3gbYMuCsMHQKfAIXpswc/i1eGEW7yi5USnQqza4P2YEDrUhSUps5N2u5 >> /UwdS1BsmW17WZRbfDudeL4y471jwKhYgCCycGI1whtToDA452nvDJL2 it6mlg== >> couldn't get address for 'dns5.tld.becloudby.com': failure >> couldn't get address for 'dns2.tld.becloudby.com': failure >> couldn't get address for 'dns3.tld.becloudby.com': failure >> couldn't get address for 'dns4.tld.becloudby.com': failure >> couldn't get address for 'dns1.tld.becloudby.com': failure >> dig: couldn't get address for 'dns5.tld.becloudby.com': no more >> >> Request SERVFAILed. When I do "rndc flush" several times, the problem has >> gone for a while. After some time I get SERVFAIL again. Now I'm forwarding >> the zone to Google DNS and there is no such problem. >> >> There is a some debug log from BIND of the problem: >> >> -- > Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe > from this list > > ISC funds the development of this software with paid support > subscriptions. Contact us at https://www.isc.org/contact/ for more > information. > > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users > >
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