一、 实验环境：

System OS：CentOS release 5.4

主 DNS：192.168.1.103

授权域名dns：192.168.1.104/192.168.1.105(在同一主机上启用了子接口)

二、 软件包的安装

yum -y install bind*

yum -y install caching-nameserver

三、 详细配置

（一）、配置192.168.1.103的/var/named/chroot/etc/named.conf文件

1、cp /var/named/chroot/etc/named.rfc1912.zones /var/named/chroot/etc/named.conf

2、编辑/var/named/chroot/etc/named.conf添加如下内容到最前面：

vi /var/named/chroot/etc/named.conf

options {

listen-on port 53 { any; };

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";

query-source port 53;

allow-query { any; };

};

include "/etc/rndc.key";

3、配置192.168.1.103的/var/named/chroot/etc/named.conf添加如下内容到最后面：

vi /var/named/chroot/etc/named.conf

zone "zhang.com" IN {

type master;

file "zhang.zone";

allow-update { none; };

};

###反向解析文件就不创建了！

#zone "1.168.192.in-addr.arpa" IN {

# type master;

# file "zhang.local";

# allow-update { none; };

#};

4、创建192.168.1.103正向解析文件name.zome

vi /var/named/chroot/var/named/zhang.zone

$TTL 86400

@ IN SOA zhang.com. root.zhang.com. (

1997022700 ; Serial

28800 ; Refresh

14400 ; Retry

3600000 ; Expire

86400 ) ; Minimum

zhang.com. IN NS zhang.com.

www IN A 192.168.1.103

aa.zhang.com. IN NS ns.aa.zhang.com.

ns.aa.zhang.com. IN A 192.168.1.105

aa.zhang.com. IN NS ns1.aa.zhang.com.

ns1.aa.zhang.com. IN A 192.168.1.104

####上面几行的意思是将子域aa.zhang.com授权给ns.aa.zhang.com和ns1.aa.zhang.com ，ip分别为192.168.1.105和192.168.1.104

5、创建192.168.1.104/192.168.1.105的配置文件named.conf，和步骤1，2一样，

6、配置192.168.1.104/192.168.1.105的/var/named/chroot/etc/named.conf添加如下内容到最后面：

zone "aa.zhang.com" IN {

type master;

file "aa.zhang.zone";

};

#zone "1.168.192.in-addr.arpa" IN {

# type master;

# file "aa.zhang.local";

#};

7、创建192.168.1.104/192.168.1.105正向解析文件aa.name.zome

vi /var/named/chroot/var/named/aa.zhang.zone

$TTL 14400

@ 86400 IN SOA ns.aa.zhang.com. root.aa.zhang.com. (

2009120701 ; serial, todays date+todays

86400 ; refresh, seconds

7200 ; retry, seconds

3600000 ; expire, seconds

86400 ) ; minimum, seconds

aa.zhang.com. 86400 IN NS ns.aa.zhang.com.

aa.zhang.com. 86400 IN NS ns1.aa.zhang.com.

aa.zhang.com. IN A 192.168.1.104

localhost.aa.zhang.com. IN A 127.0.0.1

aa.zhang.com. IN MX 0 aa.zhang.com.

mail IN CNAME aa.zhang.com.

www IN CNAME aa.zhang.com.

ftp IN CNAME aa.zhang.com.

hehe.aa.zhang.com. IN A 192.168.1.104

gay.aa.zhang.com. IN A 192.168.1.8

四、Test

注意：在test之前，请将dns指向自己！

在192.168.1.103上测试成功！

[root@zhang1 named]# nslookup

Server: 192.168.1.103

Address: 192.168.1.103#53

Non-authoritative answer:

canonical name = aa.zhang.com.

Name: aa.zhang.com

Address: 192.168.1.104

[root@zhang1 named]# nslookup hehe.aa.zhang.com

Server: 192.168.1.103

Address: 192.168.1.103#53

Non-authoritative answer:

Name: hehe.aa.zhang.com

Address: 192.168.1.104