操作系统版本：

[root@test ~]# cat /etc/issue

Red Hat Enterprise Linux AS release 4 (Nahant Update 4)

Kernel r on an m

内核：

[root@test ~]# uname -a

Linux test 2.6.9-42.EL #1 Wed Jul 12 23:16:43 EDT 2006 i686 i686 i386 GNU/Linux

[root@test ~]#

需要安装的软件：

[root@test ~]# rpm -aq | grep bind

bind-9.2.4-16.EL4

bind-utils-9.2.4-16.EL4

bind-chroot-9.2.4-16.EL4

bind-libs-9.2.4-16.EL4

ypbind-1.17.2-8

[root@test ~]# rpm -aq | grep caching-nameserver

caching-nameserver-7.3-3

[root@test ~]#

1，修改配置文件：

[root@test etc]# pwd

/var/named/chroot/etc

[root@test etc]# vi named.conf

添加如下行到配置文件中

zone "example.com" IN{

type master;

file "example.com.zone";

};

zone "25.172.in-addr.arpa" IN {

type master;

file "example.com.local";

};

2，添加zone文件：

[root@test etc]# cd ../var/named/

[root@test named]# pwd

/var/named/chroot/var/named

[root@test named]# ls

data localdomain.zone localhost.zone named.broadcast named.ca named.ip6.local named.local named.zero slaves

[root@test named]# cp localdomain.zone example.com.zone

[root@test named]# cp named.local example.com.local

[root@test named]#

3，修改example.com.zone文件，在文件末尾添加A记录：

. IN A 172.25.1.111

bbs IN A 172.25.1.112

第一行是完整写法，第二行是省略写法，效果一样。

4，修改example.com.local文件，在文件末尾添加PTR记录：

111.1.25.172.IN-ADDR-ARPA IN PTR .

112 IN PTR bbs.example.com.

5，修改这个两个文件的权限。

[root@test named]# chmod 644 example.com.*

[root@test named]#

6，启动named.

[root@test named]# service named start

Starting named: [ OK ]

[root@test named]#

启动的日志信息：

Apr 14 13:21:19 test named[22327]: starting BIND 9.2.4 -u named -t /var/named/chroot

Apr 14 13:21:19 test named[22327]: using 1 CPU

Apr 14 13:21:19 test named[22327]: loading configuration from '/etc/named.conf'

Apr 14 13:21:19 test named[22327]: listening on IPv4 interface lo, 127.0.0.1#53

Apr 14 13:21:19 test named[22327]: listening on IPv4 interface eth0, 172.25.1.114#53

Apr 14 13:21:19 test named[22327]: command channel listening on 127.0.0.1#953

Apr 14 13:21:19 test named[22327]: zone 0.in-addr.arpa/IN: loaded serial 42

Apr 14 13:21:19 test named[22327]: zone 0.0.127.in-addr.arpa/IN: loaded serial 1997022700

Apr 14 13:21:19 test named[22327]: zone 25.172.in-addr.arpa/IN: loaded serial 1997022700

Apr 14 13:21:19 test named[22327]: zone 255.in-addr.arpa/IN: loaded serial 42

Apr 14 13:21:19 test named[22327]: zone 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 1997022700

Apr 14 13:21:19 test named[22327]: zone example.com/IN: loaded serial 42

Apr 14 13:21:19 test named[22327]: zone localdomain/IN: loaded serial 42

Apr 14 13:21:19 test named[22327]: zone localhost/IN: loaded serial 42

Apr 14 13:21:19 test named[22327]: running

Apr 14 13:21:19 test named: named startup succeeded

7, 配置dns客户机.

[root@test named]# cat /etc/resolv.conf

search example.com

nameserver 172.25.1.114

[root@test named]#

8, 测试：

正向解析可以，逆向解析有问题：

[root@test named]# nslookup

> 172.25.1.111

Server: 172.25.1.114

Address: 172.25.1.114#53

** server can't find 111.1.25.172.in-addr.arpa: NXDOMAIN

>

Server: 172.25.1.114

Address: 172.25.1.114#53

Name:

Address: 172.25.1.111

> exit

[root@test named]#

9，修改反向解析的配置文件，把最后两行更改为：

111.1 IN PTR .

112.1 IN PTR bbs.example.com.

这个是简单配置。

重启named服务，然后测试就可以了。

[root@test named]# nslookup

> 172.25.1.111

Server: 172.25.1.114

Address: 172.25.1.114#53

111.1.25.172.in-addr.arpa name = .