BIND9 Servidor DNS não resolve um único domínio

Question

BIND9 Servidor DNS não resolve um único domínio

#1 resposta do (0 votos)

1

Estou executando o BIND 9.10.3-P4-Ubuntu como um servidor autoritativo para meus próprios domínios e para servir DNS para máquinas na minha rede.

Meu problema: não consigo resolver www.cnn.com.

Todos os outros domínios parecem funcionar bem.

Eu percebo que existem soluções, mas estou tentando aprender e entender. Este problema me deixou perplexo.

O que eu tentei

dig www.cnn.com

resulta em um SERVFAIL (resultados completos abaixo), mas ...

dig www.cnn.com +trace

dá uma resposta (resultados completos abaixo)

Eu tenho o log de depuração ativado (resultados abaixo), mas não tenho certeza de como ler os resultados.

named-checkconf voltou limpo e meus syslogs estão limpos.

rndc reload

não ajudou.

service bind9 restart

não ajudou.

root.hints estão atualizados

Minha configuração

named.conf

// This is the primary configuration file for the BIND DNS server named.
//
// Please read /usr/share/doc/bind9/README.Debian.gz for information on the
// structure of BIND configuration files in Debian, *BEFORE* you customize
// this configuration file.
//
// If you are just adding zones, please do that in /etc/bind/named.conf.local

include "/etc/bind/rndc.key";
include "/etc/bind/named.conf.bogus-nets";
include "/etc/bind/named.conf.options";
include "/etc/bind/named.conf.local";

named.conf.bogus-nets

// BIND CONFIG FILE INCLUDE

acl bogus-nets {
0.0.0.0/8;
1.0.0.0/8;
2.0.0.0/8;
5.0.0.0/8;

< redigido para brevidade >

223.0.0.0/8;
224.0.0.0/3;
};

named.conf.options

acl my-nets {
        192.168.1.0/24;
        192.168.0.0/24;
        127.0.0.1;
};

options {
        directory "/var/cache/bind";

        //========================================================================
        // If BIND logs error messages about the root key being expired,
        // you will need to update your keys.  See https://www.isc.org/bind-keys
        //========================================================================
        dnssec-validation auto;

        auth-nxdomain no;    # conform to RFC1035
        listen-on-v6 {none;};

        allow-query             {my-nets;};
        allow-recursion         {my-nets;};
        allow-query-cache       {my-nets;};
        blackhole               {bogus-nets;};
        allow-transfer          {none;};
        empty-zones-enable      yes;
        version                 "Version Redacted";
};

logging {
        channel information {
                file "/var/log/named/info.log" versions 3 size 500K;
                severity debug 10;
                print-time              yes;
                print-severity          yes;
                print-category          yes;
                };

        category default {information;};
};

controls {
        inet 127.0.0.1 allow {localhost;} keys {rndc-key;};
};

named.conf.local

//
// Do any local configuration here
//

// Consider adding the 1918 zones here, if they are not used in your
// organization
//include "/etc/bind/zones.rfc1918";

view "internal" {
match-clients {my-nets;};

zone "." IN {
        type            hint;
        file            "/etc/bind/db.root";
        };

zone "localhost" IN {
        type                    master;
        file                    "/etc/bind/zones/localhost.zone";
        allow-update            {none;};
        allow-query             {my-nets;};
        };

zone "0.0.127.in-addr.arpa" IN {
        type                    master;
        file                    "/etc/bind/zones/0.0.127.in-addr.arpa.zone";
        allow-update            {none;};
        allow-query             {my-nets;};
        };

        zone "1.168.192.in-addr.arpa" IN {
                type            master;
                file            "/etc/bind/zones/1.168.192.in-addr.arpa.zone";
                allow-update    {none;};
                allow-query     {my-nets;};
        };

        zone "mindmelter.org" IN {
                type            master;
                file            "/etc/bind/zones/mindmelter.org.internal.zone";
                allow-update    {none;};
                allow-query     {my-nets;};
                check-names     ignore;
        };

};

view "external" {
        match-clients {any;};

        zone "." IN {
                type            hint;
                file            "/etc/bind/db.root";
        };

        zone "mindmelter.org" IN {
                type            master;
                file            "/etc/bind/zones/mindmelter.org.external.zone";
                allow-update    {none;};
                allow-query     {any;};
                check-names     ignore;
        };
};

Permissões de arquivo

ls -l /etc/bind/db.root
-rw-r--r-- 1 bind bind 3170 Jul  9 17:26 /etc/bind/db.root


ls -l /etc/bind/zones/
-rw-r--r-- 1 bind bind    534 Jul 19  2014 0.0.127.in-addr.arpa.zone
-rw-r--r-- 1 bind bind   1666 Jul 19  2014 1.168.192.in-addr.arpa.zone
-rw-r--r-- 1 bind bind    466 Jul 19  2014 localhost.zone
-rw-r--r-- 1 bind bind   1104 Nov 29  2015 mindmelter.org.external.zone
-rw-r--r-- 1 bind bind   1224 Jul 10 13:14 mindmelter.org.internal.zone


ls -l /var/cache/bind
total 72020
-rw-r--r-- 1 bind bind      821 Jul 10 13:49 3bed2cb3a3acf7b6a8ef408420cc682d5520e26976d354254f528c965612054f.mkeys
-rw-r--r-- 1 bind bind      512 Jul 10 13:49 3bed2cb3a3acf7b6a8ef408420cc682d5520e26976d354254f528c965612054f.mkeys.jnl
-rw-r--r-- 1 bind bind      821 Jul 10 13:49 3c4623849a49a53911c4a3e48d8cead8a1858960bccdea7a1b978d73ec2f06d7.mkeys
-rw-r--r-- 1 bind bind      512 Jul 10 13:49 3c4623849a49a53911c4a3e48d8cead8a1858960bccdea7a1b978d73ec2f06d7.mkeys.jnl
-rw------- 1 bind bind 73723904 Sep  3  2015 core
-rw-r--r-- 1 bind bind      720 Jul 19  2014 managed-keys.bind
-rw-r--r-- 1 bind bind      512 Jul 19  2014 managed-keys.bind.jnl

Sugestões de Raiz (/etc/bind/db.root)

;       This file holds the information on root name servers needed to
;       initialize cache of Internet domain name servers
;       (e.g. reference this file in the "cache  .  <file>"
;       configuration file of BIND domain name servers).
;
;       This file is made available by InterNIC
;       under anonymous FTP as
;           file                /domain/named.cache
;           on server           FTP.INTERNIC.NET
;       -OR-                    RS.INTERNIC.NET
;
;       last update:    March 23, 2016
;       related version of root zone:   2016032301
;
; formerly NS.INTERNIC.NET
;
.                        3600000      NS    A.ROOT-SERVERS.NET.
A.ROOT-SERVERS.NET.      3600000      A     198.41.0.4
A.ROOT-SERVERS.NET.      3600000      AAAA  2001:503:ba3e::2:30
;
; FORMERLY NS1.ISI.EDU
;
.                        3600000      NS    B.ROOT-SERVERS.NET.
B.ROOT-SERVERS.NET.      3600000      A     192.228.79.201
B.ROOT-SERVERS.NET.      3600000      AAAA  2001:500:84::b
;
; FORMERLY C.PSI.NET
;
.                        3600000      NS    C.ROOT-SERVERS.NET.
C.ROOT-SERVERS.NET.      3600000      A     192.33.4.12
C.ROOT-SERVERS.NET.      3600000      AAAA  2001:500:2::c
;
; FORMERLY TERP.UMD.EDU
;
.                        3600000      NS    D.ROOT-SERVERS.NET.
D.ROOT-SERVERS.NET.      3600000      A     199.7.91.13
D.ROOT-SERVERS.NET.      3600000      AAAA  2001:500:2d::d
;
; FORMERLY NS.NASA.GOV
;
.                        3600000      NS    E.ROOT-SERVERS.NET.
E.ROOT-SERVERS.NET.      3600000      A     192.203.230.10
;
; FORMERLY NS.ISC.ORG
;
.                        3600000      NS    F.ROOT-SERVERS.NET.
F.ROOT-SERVERS.NET.      3600000      A     192.5.5.241
F.ROOT-SERVERS.NET.      3600000      AAAA  2001:500:2f::f
;
; FORMERLY NS.NIC.DDN.MIL
;
.                        3600000      NS    G.ROOT-SERVERS.NET.
G.ROOT-SERVERS.NET.      3600000      A     192.112.36.4
;
; FORMERLY AOS.ARL.ARMY.MIL
;
.                        3600000      NS    H.ROOT-SERVERS.NET.
H.ROOT-SERVERS.NET.      3600000      A     198.97.190.53
H.ROOT-SERVERS.NET.      3600000      AAAA  2001:500:1::53
;
; FORMERLY NIC.NORDU.NET
;
.                        3600000      NS    I.ROOT-SERVERS.NET.
I.ROOT-SERVERS.NET.      3600000      A     192.36.148.17
I.ROOT-SERVERS.NET.      3600000      AAAA  2001:7fe::53
;
; OPERATED BY VERISIGN, INC.
;
.                        3600000      NS    J.ROOT-SERVERS.NET.
J.ROOT-SERVERS.NET.      3600000      A     192.58.128.30
J.ROOT-SERVERS.NET.      3600000      AAAA  2001:503:c27::2:30
;
; OPERATED BY RIPE NCC
;
.                        3600000      NS    K.ROOT-SERVERS.NET.
K.ROOT-SERVERS.NET.      3600000      A     193.0.14.129
K.ROOT-SERVERS.NET.      3600000      AAAA  2001:7fd::1
;
; OPERATED BY ICANN
;
.                        3600000      NS    L.ROOT-SERVERS.NET.
L.ROOT-SERVERS.NET.      3600000      A     199.7.83.42
L.ROOT-SERVERS.NET.      3600000      AAAA  2001:500:9f::42
;
; OPERATED BY WIDE
;
.                        3600000      NS    M.ROOT-SERVERS.NET.
M.ROOT-SERVERS.NET.      3600000      A     202.12.27.33
M.ROOT-SERVERS.NET.      3600000      AAAA  2001:dc3::35
; End of file

Saída de Comando

digita www.cnn.com

dig www.cnn.com

; <<>> DiG 9.10.3-P4-Ubuntu <<>> www.cnn.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 24330
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;www.cnn.com.                   IN      A

;; Query time: 260 msec
;; SERVER: 192.168.1.2#53(192.168.1.2)
;; WHEN: Sun Jul 10 14:00:11 CDT 2016
;; MSG SIZE  rcvd: 40

digita www.cnn.com + traço

dig www.cnn.com +trace

; <<>> DiG 9.10.3-P4-Ubuntu <<>> www.cnn.com +trace
;; global options: +cmd
.                       470071  IN      NS      k.root-servers.net.
.                       470071  IN      NS      c.root-servers.net.
.                       470071  IN      NS      d.root-servers.net.
.                       470071  IN      NS      e.root-servers.net.
.                       470071  IN      NS      g.root-servers.net.
.                       470071  IN      NS      l.root-servers.net.
.                       470071  IN      NS      f.root-servers.net.
.                       470071  IN      NS      m.root-servers.net.
.                       470071  IN      NS      a.root-servers.net.
.                       470071  IN      NS      h.root-servers.net.
.                       470071  IN      NS      j.root-servers.net.
.                       470071  IN      NS      i.root-servers.net.
.                       470071  IN      NS      b.root-servers.net.
.                       514339  IN      RRSIG   NS 8 0 518400 20160720170000     20160710160000 46551 . ZrHKtz6uJX2ljRgkPEmXUHDuuskMmqNQTqndwpQvKimBvng8B4qCK5Mt hg6tBfmJM7Wk53NnDYoJRk1Q++OKoYYZf+njKhcPbrGa2D+rDuPOyOJz 4ussO1AZdg+H4JsZ9/OR3TfUYS4lfG8Ov6u4lc2R1y2tWqTKFif20WMC 8TM=
;; Received 955 bytes from 192.168.1.2#53(192.168.1.2) in 1 ms

com.                    172800  IN      NS      a.gtld-servers.net.
com.                    172800  IN      NS      m.gtld-servers.net.
com.                    172800  IN      NS      b.gtld-servers.net.
com.                    172800  IN      NS      j.gtld-servers.net.
com.                    172800  IN      NS      d.gtld-servers.net.
com.                    172800  IN      NS      i.gtld-servers.net.
com.                    172800  IN      NS      l.gtld-servers.net.
com.                    172800  IN      NS      h.gtld-servers.net.
com.                    172800  IN      NS      k.gtld-servers.net.
com.                    172800  IN      NS      e.gtld-servers.net.
com.                    172800  IN      NS      g.gtld-servers.net.
com.                    172800  IN      NS      f.gtld-servers.net.
com.                    172800  IN      NS      c.gtld-servers.net.
com.                    86400   IN      DS      30909 8 2     E2D3C916F6DEEAC73294E8268FB5885044A833FC5459588F4A9184CF C41A5766
com.                    86400   IN      RRSIG   DS 8 1 86400 20160720170000     20160710160000 46551 . TtxKBdFbscgs26hOkVaP5DV5bvrczgFJ91Vq79iRhvRu5PveAjT8af8G     yF0+JZMUAXyMbU7uxhgs0Rpec7ldBu/palvN9edTXZTUmmRCHiCoJwSX     46nzphAUeWh6+BB8FRZl6FpRMaSfZ02Vd3f3pxabNzLYtHzsizMXAOBv 8go=
;; Received 735 bytes from 192.5.5.241#53(f.root-servers.net) in 102 ms

cnn.com.                172800  IN      NS      ns1.timewarner.net.
cnn.com.                172800  IN      NS      ns3.timewarner.net.
cnn.com.                172800  IN      NS      ns1.p42.dynect.net.
cnn.com.                172800  IN      NS      ns2.p42.dynect.net.
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN NSEC3 1 1 0 -     CK0Q1GIN43N1ARRC9OSM6QPQR81H5M9A NS SOA RRSIG DNSKEY NSEC3PARAM
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN RRSIG NSEC3 8 2 86400     20160717050355 20160710035355 34745 com.     FRl3kWjrLQDbv3KST9JdLeQN0FgGqik8Pau80HDFSwQV9ON0D9L9CnyT     3qLHbgsh8MMt9ma0AnxjnfZx00YoRySt+0vwQfzk0/7Z6pTeyXEZCBQU     9we3XmqWg56sIDVDK3KKyTaPE2mJUZjweRpuvv3RsfjQ7qHeDeFR/spT eNk=
FVT71LMDJ71M5N4BBJG7S42QT4H2K0VS.com. 86400 IN NSEC3 1 1 0 -     FVT8070RVMMN14H33TU31073GPDT89UQ NS DS RRSIG
FVT71LMDJ71M5N4BBJG7S42QT4H2K0VS.com. 86400 IN RRSIG NSEC3 8 2 86400     20160717050135 20160710035135 34745 com.     XdoDYW/ILABlYX21xe4D5WJRQBBMR2Gk8Bqx//x/IgjyqgmXEmsVqhty     DMBS3+Sra4lsqdXHewRekfcTVCuawRp/2tA1qNZRKsOw/uQLT5RAgBqC     uCNr6wnJi41B8tnbZIeqikajlao1ie0MvjwIqQC3TLknGiz1gFDMYSNi LKg=
;; Received 686 bytes from 192.43.172.30#53(i.gtld-servers.net) in 100 ms

www.cnn.com.            300     IN      CNAME   turner.map.fastly.net.
;; Received 75 bytes from 204.74.108.238#53(ns1.timewarner.net) in 56 ms

digita turner.map.fastly.net + rastreio

dig turner.map.fastly.net +trace

; <<>> DiG 9.10.3-P4-Ubuntu <<>> turner.map.fastly.net +trace
;; global options: +cmd
.                       470021  IN      NS      e.root-servers.net.
.                       470021  IN      NS      m.root-servers.net.
.                       470021  IN      NS      c.root-servers.net.
.                       470021  IN      NS      i.root-servers.net.
.                       470021  IN      NS      h.root-servers.net.
.                       470021  IN      NS      j.root-servers.net.
.                       470021  IN      NS      k.root-servers.net.
.                       470021  IN      NS      g.root-servers.net.
.                       470021  IN      NS      d.root-servers.net.
.                       470021  IN      NS      b.root-servers.net.
.                       470021  IN      NS      l.root-servers.net.
.                       470021  IN      NS      f.root-servers.net.
.                       470021  IN      NS      a.root-servers.net.
.                       514289  IN      RRSIG   NS 8 0 518400 20160720170000     20160710160000 46551 . ZrHKtz6uJX2ljRgkP     hg6tBfmJM7Wk53NnDYoJRk1Q++OKoYYZf+njKhcPbrGa2D+rDuPOyOJz     4ussO1AZdg+H4JsZ9/OR3TfUYS4lfG8Ov6u4lc2R1y2tWqTKFif20WMC 8T
;; Received 955 bytes from 192.168.1.2#53(192.168.1.2) in 2 ms

net.                    172800  IN      NS      a.gtld-servers.net.
net.                    172800  IN      NS      b.gtld-servers.net.
net.                    172800  IN      NS      c.gtld-servers.net.
net.                    172800  IN      NS      d.gtld-servers.net.
net.                    172800  IN      NS      e.gtld-servers.net.
net.                    172800  IN      NS      f.gtld-servers.net.
net.                    172800  IN      NS      g.gtld-servers.net.
net.                    172800  IN      NS      h.gtld-servers.net.
net.                    172800  IN      NS      i.gtld-servers.net.
net.                    172800  IN      NS      j.gtld-servers.net.
net.                    172800  IN      NS      k.gtld-servers.net.
net.                    172800  IN      NS      l.gtld-servers.net.
net.                    172800  IN      NS      m.gtld-servers.net.
net.                    86400   IN      DS      35886 8 2     7862B27F5F516EBE19680444D4CE5E762981931842C465F00236401D 8B
net.                    86400   IN      RRSIG   DS 8 1 86400 20160720170000     20160710160000 46551 .     TVBcfHmkbx7KPHEMYGQ8ryWqxNk9WC1ETGLShz4Bau52UwyQbv2sZsejbpQMKnvOaJ7TPBOMDL     cHcFhOD/3KMHZiora4vx97BY5E4mnvh8YgYK3mFzXXLolRjCpO66oALk E9I
;; Received 742 bytes from 199.7.83.42#53(l.root-servers.net) in 74 ms

fastly.net.             172800  IN      NS      ns1.p04.dynect.net.
fastly.net.             172800  IN      NS      ns3.p04.dynect.net.
fastly.net.             172800  IN      NS      ns2.p04.dynect.net.
fastly.net.             172800  IN      NS      ns4.p04.dynect.net.
A1RT98BS5QGC9NFI51S9HCI47ULJG6JH.net. 86400 IN NSEC3 1 1 0 -     A1RUUFFJKCT2Q54P78F8EJGJ8JBK7I8B NS SOA RRSIG DNSKEY NSE
A1RT98BS5QGC9NFI51S9HCI47ULJG6JH.net. 86400 IN RRSIG NSEC3 8 2 86400     20160717053023 20160710042023 50762 net. LfZBm/4vXKsi/ANaS     s76lSOHLdUOF08JNpzq0uBuyTEjBS6GQFUg1ruUu2C/npgwBRxQPdMAX     6A3h+3vx9rju2frD00lI41G4IH/q83pdlAVsY6IUD02CwWuo8
AP1UQVEE3B7Q9OKM1F1UC6DRCTSUHETP.net. 86400 IN NSEC3 1 1 0 -     AP2M7NDEO91A3DEM6A6I602B2AEO284F NS DS RRSIG
AP1UQVEE3B7Q9OKM1F1UC6DRCTSUHETP.net. 86400 IN RRSIG NSEC3 8 2 86400     20160717052608 20160710041608 50762 net. uFfWQLYJvssA3GHA0     HgkMVRpBvzE2lZTrwUHT8wkpIF7PrLJZ1/EC07JekoFQlgkI7C4O4HqS     v9KiS4fwakyuCvMvqHunnVx3bFjaZHzJZRJRwIrkS270H6vMb
;; Received 682 bytes from 192.42.93.30#53(g.gtld-servers.net) in 84 ms

turner.map.fastly.net.  30      IN      CNAME   prod.turner.map.fastlylb.net.
;; Received 89 bytes from 204.13.251.4#53(ns4.p04.dynect.net) in 55 ms

dig prod.turner.map.fastlylb.net + traço

dig prod.turner.map.fastlylb.net +trace

; <<>> DiG 9.10.3-P4-Ubuntu <<>> prod.turner.map.fastlylb.net +trace
;; global options: +cmd
.                       469985  IN      NS      k.root-servers.net.
.                       469985  IN      NS      l.root-servers.net.
.                       469985  IN      NS      f.root-servers.net.
.                       469985  IN      NS      d.root-servers.net.
.                       469985  IN      NS      c.root-servers.net.
.                       469985  IN      NS      a.root-servers.net.
.                       469985  IN      NS      j.root-servers.net.
.                       469985  IN      NS      m.root-servers.net.
.                       469985  IN      NS      g.root-servers.net.
.                       469985  IN      NS      b.root-servers.net.
.                       469985  IN      NS      e.root-servers.net.
.                       469985  IN      NS      h.root-servers.net.
.                       469985  IN      NS      i.root-servers.net.
.                       514253  IN      RRSIG   NS 8 0 518400 20160720170000     20160710160000 46551 . ZrHKtz6uJX2ljRgkPEmXUHDuuskMmqNQTqndwpQvKimBvng8B4qCK5Mt     hg6tBfmJM7Wk53NnDYoJRk1Q++OKoYYZf+njKhcPbrGa2D+rDuPOyOJz     4ussO1AZdg+H4JsZ9/OR3TfUYS4lfG8Ov6u4lc2R1y2tWqTKFif20WMC 8TM=
;; Received 955 bytes from 192.168.1.2#53(192.168.1.2) in 1 ms

net.                    172800  IN      NS      e.gtld-servers.net.
net.                    172800  IN      NS      f.gtld-servers.net.
net.                    172800  IN      NS      m.gtld-servers.net.
net.                    172800  IN      NS      i.gtld-servers.net.
net.                    172800  IN      NS      j.gtld-servers.net.
net.                    172800  IN      NS      b.gtld-servers.net.
net.                    172800  IN      NS      a.gtld-servers.net.
net.                    172800  IN      NS      c.gtld-servers.net.
net.                    172800  IN      NS      k.gtld-servers.net.
net.                    172800  IN      NS      h.gtld-servers.net.
net.                    172800  IN      NS      l.gtld-servers.net.
net.                    172800  IN      NS      g.gtld-servers.net.
net.                    172800  IN      NS      d.gtld-servers.net.
net.                    86400   IN      DS      35886 8 2     7862B27F5F516EBE19680444D4CE5E762981931842C465F00236401D 8BD973EE
net.                    86400   IN      RRSIG   DS 8 1 86400 20160720170000     20160710160000 46551 . TVBcfHmkbx7KPHEMYGhoh/YVWuae16dznm2kScbPP6W7sLknlF4hnxcD     Q8ryWqxNk9WC1ETGLShz4Bau52UwyQbv2sZsejbpQMKnvOaJ7TPBOMDL     cHcFhOD/3KMHZiora4vx97BY5E4mnvh8YgYK3mFzXXLolRjCpO66oALk E9I=
;; Received 749 bytes from 198.41.0.4#53(a.root-servers.net) in 79 ms

fastlylb.net.           172800  IN      NS      ns1.fastlylb.net.
fastlylb.net.           172800  IN      NS      ns2.fastlylb.net.
fastlylb.net.           172800  IN      NS      ns3.fastlylb.net.
fastlylb.net.           172800  IN      NS      ns4.fastlylb.net.
A1RT98BS5QGC9NFI51S9HCI47ULJG6JH.net. 86400 IN NSEC3 1 1 0 -     A1RUUFFJKCT2Q54P78F8EJGJ8JBK7I8B NS SOA RRSIG DNSKEY NSEC3PARAM
A1RT98BS5QGC9NFI51S9HCI47ULJG6JH.net. 86400 IN RRSIG NSEC3 8 2 86400     20160717053023 20160710042023 50762 net.     LfZBm/4j+WvVDIDZZn3fBMV4nSM1bW1Ea7ptxthzgdvR6dvXKsi/ANaS     s76lSOHLdUOF08JNpzq0uBuyTEjBS6GQFUg1ruUu2C/npgwBRxQPdMAX     6A3h+3vx9rju2frD00lI41G4IH/q83pdlAVsY6IUD02CwWuo8TLuglyB tMo=
IVGF9TD77VU6QETUUOLS7T84VMH1S5E7.net. 86400 IN NSEC3 1 1 0 -     IVGV4AU40DKCA1FI0Q6UIFCTE1CUIIAP NS DS RRSIG
IVGF9TD77VU6QETUUOLS7T84VMH1S5E7.net. 86400 IN RRSIG NSEC3 8 2 86400     20160714052000 20160707041000 50762 net.     KxuPdbkmroRr/KSmGBQd27iZaWb1rMzcotXAt8g3PXm9jH6JeQu5HtmD     VqzGw/uuwfxrcEZ5HMfttThAqU43FD9ZD0miwIckVUQz8rbLpFSKTYK7     ai/hdsTh+obZpEiDY0hSV1NNsUae7e7xtXctxjvQufKECa65HCqgzGTw r4k=
;; Received 678 bytes from 192.41.162.30#53(l.gtld-servers.net) in 80 ms

prod.turner.map.fastlylb.net. 30 IN     A       151.101.44.73
;; Received 73 bytes from 104.156.84.32#53(ns4.fastlylb.net) in 55 ms

Arquivo de log BIND /var/log/named/info.log

Isso está mostrando o SERVFAIL da escavação www.cnn.com.

10-Jul-2016 14:01:35.208 client: debug 3: client 192.168.1.2#45833: UDP request
10-Jul-2016 14:01:35.208 client: debug 5: client 192.168.1.2#45833: view internal: using view 'internal'
10-Jul-2016 14:01:35.208 security: debug 3: client 192.168.1.2#45833: view internal: request is not signed
10-Jul-2016 14:01:35.208 security: debug 3: client 192.168.1.2#45833: view internal: recursion available
10-Jul-2016 14:01:35.208 client: debug 3: client 192.168.1.2#45833: view internal: query
10-Jul-2016 14:01:35.208 client: debug 10: client 192.168.1.2#45833 (www.cnn.com): view internal: ns_client_attach: ref = 1
10-Jul-2016 14:01:35.209 security: debug 3: client 192.168.1.2#45833 (www.cnn.com): view internal: query (cache) 'www.cnn.com/A/IN' approved
10-Jul-2016 14:01:35.209 client: debug 3: client 192.168.1.2#45833 (www.cnn.com): view internal: replace
10-Jul-2016 14:01:35.209 general: debug 3: clientmgr @0x7f71ff5e8458: get client
10-Jul-2016 14:01:35.209 general: debug 3: clientmgr @0x7f71ff5e8458: recycle
10-Jul-2016 14:01:35.209 resolver: debug 1: fetch: turner.map.fastly.net/A
10-Jul-2016 14:01:35.209 client: debug 3: client @0x7f71e0000f60: udprecv
10-Jul-2016 14:01:35.209 resolver: debug 10: log_ns_ttl: fctx 0x7f71e80ca040: fctx_create: turner.map.fastly.net (in 'fastly.NET'?): 1 125746
10-Jul-2016 14:01:35.265 resolver: debug 10: received packet:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:  23686
;; flags: qr aa; QUESTION: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 4096
;; QUESTION SECTION:
;turner.map.fastly.net.         IN      A

;; ANSWER SECTION:
;turner.map.fastly.net. 30      IN      CNAME   prod.turner.map.fastlylb.net.

10-Jul-2016 14:01:35.265 dnssec: debug 3: validating turner.map.fastly.net/CNAME: starting
10-Jul-2016 14:01:35.265 dnssec: debug 3: validating turner.map.fastly.net/CNAME: attempting insecurity proof
10-Jul-2016 14:01:35.265 dnssec: debug 3: validating turner.map.fastly.net/CNAME: checking existence of DS at 'net'
10-Jul-2016 14:01:35.265 dnssec: debug 3: validating turner.map.fastly.net/CNAME: checking existence of DS at 'fastly.net'
10-Jul-2016 14:01:35.265 dnssec: debug 3: validating turner.map.fastly.net/CNAME: marking as answer (proveunsecure (4))
10-Jul-2016 14:01:35.265 dnssec: debug 4: validator @0x7f71e8048c70: dns_validator_destroy
10-Jul-2016 14:01:35.265 database: debug 5: dns_adb_destroyfind on find 0x7f71e03f52c0
10-Jul-2016 14:01:35.265 database: debug 5: dns_adb_destroyfind on find 0x7f71e08fa220
10-Jul-2016 14:01:35.265 database: debug 5: dns_adb_destroyfind on find 0x7f71e03d92c0
10-Jul-2016 14:01:35.265 database: debug 5: dns_adb_destroyfind on find 0x7f71e08ffa90
10-Jul-2016 14:01:35.265 resolver: debug 1: fetch: prod.turner.map.fastlylb.net/A
10-Jul-2016 14:01:35.265 resolver: debug 10: log_ns_ttl: fctx 0x7f71f04ba858: fctx_create: prod.turner.map.fastlylb.net (in 'fastlylb.NET'?): 1 125747
10-Jul-2016 14:01:35.265 database: debug 5: expiring v4 for name 0x7f71e08f1bb0
10-Jul-2016 14:01:35.265 database: debug 5: dns_adb_createfind: found A for name ns1.fastlylb.net (0x7f71e08f1bb0) in db
10-Jul-2016 14:01:35.265 database: debug 5: expiring v4 for name 0x7f71e08f1a80
10-Jul-2016 14:01:35.265 database: debug 5: dns_adb_createfind: found A for name ns2.fastlylb.net (0x7f71e08f1a80) in db
10-Jul-2016 14:01:35.266 database: debug 5: expiring v4 for name 0x7f71e08f1950
10-Jul-2016 14:01:35.266 database: debug 5: dns_adb_createfind: found A for name ns3.fastlylb.net (0x7f71e08f1950) in db
10-Jul-2016 14:01:35.266 database: debug 5: expiring v4 for name 0x7f71e08f5fd0
10-Jul-2016 14:01:35.266 database: debug 5: dns_adb_createfind: found A for name ns4.fastlylb.net (0x7f71e08f5fd0) in db
10-Jul-2016 14:01:35.266 database: debug 5: dns_adb_destroyfind on find 0x7f71e03f52c0
10-Jul-2016 14:01:35.266 database: debug 5: dns_adb_destroyfind on find 0x7f71e08ffa90
10-Jul-2016 14:01:35.266 database: debug 5: dns_adb_destroyfind on find 0x7f71e08fa220
10-Jul-2016 14:01:35.266 database: debug 5: dns_adb_destroyfind on find 0x7f71e03d92c0
10-Jul-2016 14:01:35.266 query-errors: debug 1: client 192.168.1.2#45833 (www.cnn.com): view internal: query failed (SERVFAIL) for www.cnn.com/IN/A at ../../../bin/named/query.c:7769
10-Jul-2016 14:01:35.266 client: debug 3: client 192.168.1.2#45833 (www.cnn.com): view internal: error
10-Jul-2016 14:01:35.266 client: debug 3: client 192.168.1.2#45833 (www.cnn.com): view internal: send
10-Jul-2016 14:01:35.266 client: debug 3: client 192.168.1.2#45833 (www.cnn.com): view internal: sendto
10-Jul-2016 14:01:35.266 client: debug 3: client 192.168.1.2#45833 (www.cnn.com): view internal: senddone
10-Jul-2016 14:01:35.266 client: debug 3: client 192.168.1.2#45833 (www.cnn.com): view internal: next
10-Jul-2016 14:01:35.266 client: debug 10: client 192.168.1.2#45833 (www.cnn.com): view internal: ns_client_detach: ref = 0
10-Jul-2016 14:01:35.266 client: debug 3: client 192.168.1.2#45833 (www.cnn.com): view internal: endrequest
10-Jul-2016 14:01:35.266 query-errors: debug 2: fetch completed at ../../../lib/dns/resolver.c:3660 for prod.turner.map.fastlylb.net/A in 0.000632: SERVFAIL/success [domain:fastlylb.NET,referral:0,restart:1,qrysent:0,timeout:0,lame:0,neterr:0,badresp:0,adberr:0,findfail:0,valfail:0]

dns bind

por Keith M. 10.07.2016 / 22:32

1 resposta

Tags dns bind

Diga ao programa do Windows para se ater a um monitor Como fechar uma guia no Chrome que se recusa a fechar?

score 0 · Answer 1

Sem obter um despejo do seu estado de cache, não há nenhuma maneira (agora) de descobrir o que estava causando a condição SERVFAIL, pois ele está funcionando corretamente agora, embora lentamente .. Existem várias camadas de conjuntos de servidores de nomes e várias pesquisas (e reiniciar a consulta) domínios que poderiam ter sido os culpados (sendo o próprio cnn.com improvável), ou seja, pode ter havido problemas com o timewarner.com, fastly.net ou dynect.net da sua perspectiva na rede.

Na próxima vez que isso acontecer, use este site para executar uma análise de cima para baixo: link

Se você tentar agora para www.cnn.com, há avisos sobre incompatibilidades de delegação e falhas de entrega do UDP devido ao tamanho da carga útil negociada (geralmente causado por um firewall mal configurado).

Edit: Você está bogus-net ing algum desses IPs?

$ checksoa fastly.net

    Serial #      RTT(ms)   Version                                      fastly.net nameservers (name -- IP -- SOA MNAME)

    2016071503       91   9.10.2+Dyn-ETM-13892          ns1.p04.dynect.net                    208.78.70.4                        SOA: ns1.p04.dynect.net
    2016071503     145   9.10.2+Dyn-ETM-13892          ns3.p04.dynect.net                    208.78.71.4                        SOA: ns1.p04.dynect.net
    2016071503     133   9.10.2+Dyn-ETM-13892          ns1.p04.dynect.net                    2001:500:90:1:0:0:0:4       SOA: ns1.p04.dynect.net
    2016071503     113   9.10.2+Dyn-ETM-13892          ns4.p04.dynect.net                    204.13.251.4                      SOA: ns1.p04.dynect.net
    2016071503     110   9.10.2+Dyn-ETM-13892          ns2.p04.dynect.net                    204.13.250.4                      SOA: ns1.p04.dynect.net
    2016071503     103   9.10.2+Dyn-ETM-13892          ns3.p04.dynect.net                    2001:500:94:1:0:0:0:4       SOA: ns1.p04.dynect.net

$ checksoa dynect.net

     Serial #    RTT(ms)  Version                                       dynect.net nameservers (name -- IP -- SOA MNAME)

    2016070500      61   9.10.2+Dyn-ETM-13892          ns1.dynamicnetworkservices.net        208.78.70.136                            SOA: ns0.dynamicnetworkservices.net
    2016070500      64   myriad_pdns:1.0.0                    ns6.dynamicnetworkservices.net        162.88.61.21                              SOA: ns0.dynamicnetworkservices.net
    2016070500      65   myriad_pdns:1.0.0                    ns5.dynamicnetworkservices.net        162.88.60.21                              SOA: ns0.dynamicnetworkservices.net
    2016070500      62   9.10.2+Dyn-ETM-13892          ns3.dynamicnetworkservices.net        208.78.71.136                            SOA: ns0.dynamicnetworkservices.net
    2016070500      70   9.10.2+Dyn-ETM-13892          ns2.dynamicnetworkservices.net        204.13.250.136                          SOA: ns0.dynamicnetworkservices.net
    2016070500      70   9.10.2+Dyn-ETM-13892          ns4.dynamicnetworkservices.net        204.13.251.136                          SOA: ns0.dynamicnetworkservices.net
    2016070500      81   myriad_pdns:1.0.0                    ns6.dynamicnetworkservices.net        2600:2000:1001:0:0:0:0:21        SOA: ns0.dynamicnetworkservices.net
    2016070500      79   9.10.2+Dyn-ETM-13892          ns1.dynamicnetworkservices.net        2001:500:90:1:0:0:0:136            SOA: ns0.dynamicnetworkservices.net
    2016070500      81   vertex_bind:2.0.2                      ns7.dynamicnetworkservices.net        108.59.165.1                              SOA: ns0.dynamicnetworkservices.net
    2016070500      81   9.10.2+Dyn-ETM-13892          ns3.dynamicnetworkservices.net        2001:500:94:1:0:0:0:136            SOA: ns0.dynamicnetworkservices.net
    2016070500      82   myriad_pdns:1.0.0                    ns5.dynamicnetworkservices.net        2600:2000:1000:0:0:0:0:21        SOA: ns0.dynamicnetworkservices.net
    2016070500      86   vertex_bind:2.0.2                      ns7.dynamicnetworkservices.net        2a02:e180:8:0:0:0:0:1                SOA: ns0.dynamicnetworkservices.net

$ checksoa dynamicnetworkservices.net

     Serial #   RTT(ms)  Version                                       dynamicnetworkservices.net nameservers (name -- IP -- SOA MNAME)

    2016051600      62   9.10.2+Dyn-ETM-13892          ns3.dynamicnetworkservices.net        208.78.71.136                           SOA: ns0.dynamicnetworkservices.net
    2016051600      64   myriad_pdns:1.0.0                    ns6.dynamicnetworkservices.net        162.88.61.21                             SOA: ns0.dynamicnetworkservices.net
    2016051600      64   9.10.2+Dyn-ETM-13892          ns1.dynamicnetworkservices.net        208.78.70.136                           SOA: ns0.dynamicnetworkservices.net
    2016051600      64   myriad_pdns:1.0.0                   ns5.dynamicnetworkservices.net        162.88.60.21                             SOA: ns0.dynamicnetworkservices.net
    2016051600      72   9.10.2+Dyn-ETM-13892          ns2.dynamicnetworkservices.net        204.13.250.136                         SOA: ns0.dynamicnetworkservices.net
    2016051600      75   9.10.2+Dyn-ETM-13892          ns4.dynamicnetworkservices.net        204.13.251.136                         SOA: ns0.dynamicnetworkservices.net
    2016051600      81   vertex_bind:2.0.2                      ns7.dynamicnetworkservices.net        108.59.165.1                             SOA: ns0.dynamicnetworkservices.net
    2016051600      81   9.10.2+Dyn-ETM-13892          ns3.dynamicnetworkservices.net        2001:500:94:1:0:0:0:136            SOA: ns0.dynamicnetworkservices.net
    2016051600      85   myriad_pdns:1.0.0                   ns6.dynamicnetworkservices.net        2600:2000:1001:0:0:0:0:21        SOA: ns0.dynamicnetworkservices.net
    2016051600      88   vertex_bind:2.0.2                     ns7.dynamicnetworkservices.net        2a02:e180:8:0:0:0:0:1                SOA: ns0.dynamicnetworkservices.net
    2016051600      83   9.10.2+Dyn-ETM-13892         ns1.dynamicnetworkservices.net        2001:500:90:1:0:0:0:136            SOA: ns0.dynamicnetworkservices.net
    2016051600      85   myriad_pdns:1.0.0                   ns5.dynamicnetworkservices.net        2600:2000:1000:0:0:0:0:21        SOA: ns0.dynamicnetworkservices.net