操作系统版本：

[root@test ~]# cat /etc/issueRed Hat Enterprise Linux AS release 4 (Nahant Update 4)Kernel r on an m

内核：

[root@test ~]# uname -aLinux 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 bindbind-9.2.4-16.EL4bind-utils-9.2.4-16.EL4bind-chroot-9.2.4-16.EL4bind-libs-9.2.4-16.EL4ypbind-1.17.2-8[root@test ~]# rpm -aq | grep caching-nameservercaching-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]# lsdata 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 172.25.1.111bbs 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 startStarting 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/chrootApr 14 13:21:19 test named[22327]: using 1 CPUApr 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#53Apr 14 13:21:19 test named[22327]: listening on IPv4 interface eth0, 172.25.1.114#53Apr 14 13:21:19 test named[22327]: command channel listening on 127.0.0.1#953Apr 14 13:21:19 test named[22327]: zone 0.in-addr.arpa/IN: loaded serial 42Apr 14 13:21:19 test named[22327]: zone 0.0.127.in-addr.arpa/IN: loaded serial 1997022700Apr 14 13:21:19 test named[22327]: zone 25.172.in-addr.arpa/IN: loaded serial 1997022700Apr 14 13:21:19 test named[22327]: zone 255.in-addr.arpa/IN: loaded serial 42Apr 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 1997022700Apr 14 13:21:19 test named[22327]: zone example.com/IN: loaded serial 42Apr 14 13:21:19 test named[22327]: zone localdomain/IN: loaded serial 42Apr 14 13:21:19 test named[22327]: zone localhost/IN: loaded serial 42Apr 14 13:21:19 test named[22327]: runningApr 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.comnameserver 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 > 172.25.1.111Server: 172.25.1.114Address: 172.25.1.114#53

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

> Server: 172.25.1.114Address: 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 > 172.25.1.111Server: 172.25.1.114Address: 172.25.1.114#53

111.1.25.172.in-addr.arpa name = .

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