配置DNS辅助域名和子域名服务器（二）
三、主机B：
1. 主配置文件/etc/named.conf
options {
directory "/var/named/";
version "unknown";
forwarders { 192.168.1.7; };
};
logging {
channel dns_errors
{ file "/var/log/named/err_logs" versions 3 size 10m;
severity error;
print-category yes;
print-severity yes;
print-time yes;
};
channel dns_queries
{ file "/var/log/named/query_logs"
versions 3 size 10m;
severity info;
print-category yes;
print-severity yes;
print-time yes;
};
category default { dns_errors; };
category queries { dns_queries; };
};
zone "." {
type hint;
file "named.ca";
};
zone "localhost" {
type master;
file "named.localhost";
};
zone "0.0.127.IN-addr.arpa" {
type master;
file "named.loopback";
};
zone "mydomain.org" {
type slave;
file "mydomain.org.zone";
masters { 192.168.1.7; };
};
zone "1.168.192.in-addr.arpa" {
type slave;
file "192.168.1.zone";
masters { 192.168.1.7; };
};
zone "market.myzone.org" {
type master;
file "market.myzone.org.zone";
};
zone "10.168.192.in-addr.arpa" {
type master;
file "192.168.10.zone";
};
include "/etc/rndc.key";
controls {
inet 127.0.0.1 port 953
allow { 127.0.0.1; } keys { "rndc-key"; };
};
# End of named.conf
2.子域market.myzone.org的正向解析文件/var/named/market.myzone.org.zone
$TTL 1D
$ORIGIN market.myzone.org.
@ 1D IN SOA market.myzone.org. root.mail.market.myzone.org. (
20070301
1H
15M
1W
1D )
IN NS ns.market.myzone.org.
IN MX 10 mail.market.myzone.org.
market.myzone.org. IN A 192.168.10.6
ns IN A 192.168.10.6
mail IN A 192.168.10.100
www IN CNAME mail
3.子域market.myzone.org的反向解析文件/var/named/192.168.10.zone
$TTL 1D
@ 1D IN SOA myzone.org. root.mail.myzone.org. (
20070301
1H
15M
1W
1D )
IN NS ns.myzone.org.
6 IN PTR ns.myzone.org.
100 IN PTR mail.myzone.org.
注:辅助域的解析文件将会由区域传送获得，不需要手动建立。如果你想要反复尝试区域传送的效果，请将TTL值改小。本机的如下所示:
4.域mydomain.org的正向解析文件/var/named/mydomain.org.zone
$ORIGIN .
$TTL 86400 ; 1 day
mydomain.org IN SOA mydomain.org. root.mail.mydomain.org. (
20070301 ; serial
3600 ; refresh (1 hour)
900 ; retry (15 minutes)
604800 ; expire (1 week)
86400 ; minimum (1 day)
)
NS ns.mydomain.org.
A 192.168.1.7
MX 10 mail.mydomain.org.
$ORIGIN mydomain.org.
ftp CNAME mail
mail A 192.168.1.100
ns A 192.168.1.7
www CNAME mail
5.域mydomain.org的反向解析文件/var/named/192.168.1.zone
$ORIGIN .
$TTL 86400 ; 1 day
1.168.192.in-addr.arpa IN SOA mydomain.org. root.mail.mydomain.org. (
20070301 ; serial
3600 ; refresh (1 hour)
900 ; retry (15 minutes)
604800 ; expire (1 week)
86400 ; minimum (1 day)
)
NS ns.mydomain.org.
$ORIGIN 1.168.192.in-addr.arpa.
100 PTR mail.mydomain.org.
7 PTR marion.org.
PTR ns.mydomain.org.
四：测试结果
1.主机A：
#nslookup
> set type=NS
> market.myzone.org
Server: 127.0.0.1
Address: 127.0.0.1#53
Non-authoritative answer:
market.myzone.org nameserver = ns.market.myzone.org.
Authoritative answers can be found from:
ns.market.myzone.org internet address = 192.168.10.6
> myzone.org
Server: 127.0.0.1
Address: 127.0.0.1#53
myzone.org nameserver = ns.myzone.org.
> mydomain.org
Server: 127.0.0.1
Address: 127.0.0.1#53
mydomain.org nameserver = ns.mydomain.org.
>
2.主机B：
#nslookup
> set type=NS
> mydomain.org
Server: 127.0.0.1
Address: 127.0.0.1#53
mydomain.org nameserver = ns.mydomain.org.
> myzone.org
Server: 127.0.0.1
Address: 127.0.0.1#53
Non-authoritative answer:
myzone.org nameserver = ns.myzone.org.
Authoritative answers can be found from:
ns.myzone.org internet address = 192.168.10.7
> market.myzone.org
Server: 127.0.0.1
Address: 127.0.0.1#53
market.myzone.org nameserver = ns.market.myzone.org.
> set type=NS
> mydomain.org
Server: 127.0.0.1
Address: 127.0.0.1#53
mydomain.org nameserver = ns.mydomain.org.
> myzone.org
Server: 127.0.0.1
Address: 127.0.0.1#53
Non-authoritative answer:
myzone.org nameserver = ns.myzone.org.
Authoritative answers can be found from:
ns.myzone.org internet address = 192.168.10.7
> market.myzone.org
Server: 127.0.0.1
Address: 127.0.0.1#53
market.myzone.org nameserver = ns.market.myzone.org.