Нужна помощь в настройке DNS сервера

Я хочу запустить DNS-сервер, чтобы иметь свои собственные серверы имен: ns1.radicalteam.ir и ns2.radicalteam.ir
У меня есть VPS, на нем установлен Centos 6.5, а также доменыradicalteam.ir и soulati.ir. Я установил серверы имен soulati.ir на ns1.radicalteam.ir и ns2.radicalteam.ir. Я могу связаться с radicaalteam.ir, но soulati.ir недоступен. В чем проблема ??
Это моя конфигурация в привязке:
/etc/ named.conf:

options {
    listen-on port 53 { 185.94.97.188;127.0.0.1; };
    allow-query     { any; };
    Allow-transfer {"none";};
    Allow-recursion {"none";};
    Recursion no;
};

zone "server.radicalteam.ir" {
type master;
file "/var/named/server.radicalteam.ir.zone";
};

zone "radicalteam.ir" {
type master;
file "/var/named/radicalteam.ir.zone";
};

/var/ named/server.radicalteam.ir.zone:

$TTL 1D
@   IN  SOA ns1.radicalteam.ir. admin.radicalteam.ir. (
                                        1       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum

server.radicalteam.ir. IN  NS   ns1.radicalteam.ir.
server.radicalteam.ir. IN  NS   ns2.radicalteam.ir.
server.radicalteam.ir. IN  A    185.94.97.188
server.radicalteam.ir. IN  MX   0 server.radicalteam.ir.

/var/ named/radicalteam.ir.zone:

$TTL 1D
@   IN  SOA ns1.radicalteam.ir. server.radicalteam.ir. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum

radicalteam.ir. IN  NS      ns1.radicalteam.ir.
radicalteam.ir. IN  NS      ns2.radicalteam.ir.
radicalteam.ir. IN  A       185.94.97.188
ns1     IN  A   185.94.97.188
ns2     IN  A   185.94.97.188
radicalteam.ir. IN  MX  0  radicalteam.ir.
www         IN  CNAME   radicalteam.ir.

nslookup -debug радикальная команда.ir

Server:     127.0.1.1
Address:    127.0.1.1#53

------------
    QUESTIONS:
    radicalteam.ir, type = A, class = IN
    ANSWERS:
    ->  radicalteam.ir
    internet address = 185.94.97.188
    ttl = 86400
    AUTHORITY RECORDS:
    ->  radicalteam.ir
    nameserver = ns2.radicalteam.ir.
    ttl = 1290
    ->  radicalteam.ir
    nameserver = ns1.radicalteam.ir.
    ttl = 1290
    ADDITIONAL RECORDS:
    ->  ns1.radicalteam.ir
    internet address = 185.94.97.188
    ttl = 1290
    ->  ns2.radicalteam.ir
    internet address = 185.94.97.188
    ttl = 56785
------------
Non-authoritative answer:
Name:   radicalteam.ir
Address: 185.94.97.188

пинг soulati.ir:

ping: unknown host soulati.ir

nslookup soulati.ir:

Server:     127.0.1.1
Address:    127.0.1.1#53

** server can't find soulati.ir: SERVFAIL

nslookup -debug soulati.ir

Server:     127.0.1.1
Address:    127.0.1.1#53

------------
    QUESTIONS:
    soulati.ir, type = A, class = IN
    ANSWERS:
    AUTHORITY RECORDS:
    ADDITIONAL RECORDS:
------------
** server can't find soulati.ir: SERVFAIL