Centos 7 bind ничего не возвращает

Я попытался сделать DNS-сервер, но когда я делаю команду dig, сервер ничего не возвращает. У меня не было никакого предыдущего опыта, и я только следую этому руководству: http://www.itzgeek.com/how-tos/linux/centos-how-tos/configure-dns-bind-server-on-centos-7- rhel-7.html .

файл named.conf:

// // named.conf // // Provided by Red Hat bind package to configure the ISC BIND named(8) DNS // server as a caching only nameserver (as a localhost DNS resolver only). // // See /usr/share/doc/bind*/sample/ for example named configuration files. //  options { listen-on port 53 { 127.0.0.1;192.168.38.103; }; listen-on-v6 port 53 { ::1; }; directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; memstatistics-file "/var/named/data/named_mem_stats.txt"; allow-query { localhost; 192.168.38.0/24; };  /* - If you are building an AUTHORITATIVE DNS server, do NOT enable recursion. - If you are building a RECURSIVE (caching) DNS server, you need to enable recursion. - If your recursive DNS server has a public IP address, you MUST enable access control to limit queries to your legitimate users. Failing to do so will cause your server to become part of large scale DNS amplification attacks. Implementing BCP38 within your network would greatly reduce such attack surface */ recursion yes;  dnssec-enable yes; dnssec-validation yes; dnssec-lookaside auto;  /* Path to ISC DLV key */ bindkeys-file "/etc/named.iscdlv.key";  managed-keys-directory "/var/named/dynamic";  pid-file "/run/named/named.pid"; session-keyfile "/run/named/session.key"; };  logging { channel default_debug { file "data/named.run"; severity dynamic; }; };  zone "." IN { type hint; file "named.ca"; };  zone "dynavio.coop" IN { type master; file "fwd.dynavio.coop.db"; dnssec-enable yes; dnssec-validation yes; dnssec-lookaside auto;  /* Path to ISC DLV key */ bindkeys-file "/etc/named.iscdlv.key";  managed-keys-directory "/var/named/dynamic";  pid-file "/run/named/named.pid"; session-keyfile "/run/named/session.key"; };  logging { channel default_debug { file "data/named.run"; severity dynamic; }; };  zone "." IN { type hint; file "named.ca"; };  zone "dynavio.coop" IN { type master; file "fwd.dynavio.coop.db"; allow-update { none; }; };  zone "38.168.192.in-addr.arpa" IN { type master; file "38.168.192.db"; allow-update { none; }; };  include "/etc/named.rfc1912.zones"; include "/etc/named.root.key"; 

Файл fwd.dynavio.coop.db:

$TTL 86400 @ IN SOA primary.dynavio.coop. root.dynavio.coop. ( 2014112511 ;Serial 3600 ;Refresh 1800 ;Retry 604800 ;Expire 86400 ;MinimumTTL ) ;Name Server Information @ IN NS primary.dynavio.coop. ;IP Address of Name Server primary IN A 192.168.38.8 ;Mail exchanger dynavio.coop. IN MX 10 mail.dynavio.coop. ;A - Record HostName To Ip Address www IN A 192.168.38.100 mail IN A 192.168.38.150 ;CNAME record ftp IN CNAME www.dynavio.coop. 

38.168.192.db файл:

$TTL 86400 @ IN SOA primary.dynavio.coop. root.dynavio.coop. ( 2014112511 ;Serial 3600 ;Refresh 1800 ;Retry 604800 ;Expire 86400 ;Minimum TTL ) ;Name Server Information @ IN NS primary.dynavio.coop. ;Reverse lookup for Name Server 8 IN PTR primary.dynavio.coop. ;PTR Record IP address to HostName 100 IN PTR www.dynavio.coop. 150 IN PTR mail.dynavio.coop. 

Команда Dig возвращает:

; <<>> DiG 9.9.4-RedHat-9.9.4-18.el7_1.5 <<>> www.dynavio.coop ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 43498 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0  ;; QUESTION SECTION: ;www.dynavio.coop. IN A  ;; AUTHORITY SECTION: coop. 1272 IN SOA coop1.dyntld.net. support.nic.coop. 2015099691 900 1800 6048000 3600  ;; Query time: 3 msec ;; SERVER: 192.168.38.1#53(192.168.38.1) ;; WHEN: Mon Dec 07 16:36:55 EET 2015 ;; MSG SIZE rcvd: 98 

Обновление: похоже, проблема в том, /etc/resolv.confчто перезаписывается каждый раз при перезапуске сетевого менеджера. Я обновлю это позже, когда смогу получить файл if-cfg.