DNS在RHEL4上的配置方法

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域名：www.test.com IP：192.168.0.90

假设机器在没有安装DNS的情况下配置的。

在RHEL4上配置DNS步骤如下：

1、在 http://www.isc.org/products/BIND/ 下载到bind-9.3.0rc4.tar.gz。

2、放到一个共同目录下：

#tar xfz bind-9.3.1rc1.tar.gz

#cd bind-9.3.0rc4

#./configure --prefix=/usr/local/named

#make

#make install

安装完成。

3、进入/usr/local/named/目录

#mkdir etc

4、进入/usr/local/named/etc目录

vi named.conf 内容如下

options {

directory "/var/named"; // zone文件所在目录

forwarders { //如果解析不到记录，将请求下面的DNS解析

202.101.98.55; // //其它的DNS服务器

};

pid-file "/var/named/named.pid";

allow-query { any; };

};

zone "." {

type hint;

file "named.root";

};

zone "localhost" {

type master;

file "localhost.zone";

};

zone "0.0.127.in-addr.arpa" {

type master;

file "named.127.0.0";

};

zone "test.com" {

type master;

file "test.zone";

};

zone "0.168.192.in-addr.arpa" {

type master;

file "named.192.168.0";

};

5、增加用户useradd named

增加目录 group –G named –g named

增加目录 mkdir /var/named

chown named /var/named

chgrp named /var/named

进到目录/var/named

6、 vi localhost.zone 内容如下：

[root@dongying named]# more localhost.zone

$TTL 86400

$ORIGIN localhost.

@ 1D IN SOA localhost. root.localhost. (

42 ; serial (d. adams)

3H ; refresh

15M ; retry

1W ; expiry

1D ) ; minimum

@ IN NS localhost.

localhost. IN A 127.0.0.1

[root@dongying named]#

7、 vi named.127.0.0 内容如下：

[root@dongying named]# more named.127.0.0

$TTL 86400

@ 1D IN SOA localhost. root.localhost. (

2005092301 ; serial (d. adams)

28800 ; refresh

14400 ; retry

720000 ; expiry

86400 ) ; minimum

@ IN NS localhost.

1 IN PTR localhost.

[root@dongying named]#

8、 vi named.192.168.0 内容如下：

[root@dongying named]# more named.192.168.0

$TTL 86400

@ IN SOA DNS.test.com. root.DNS.test.com. (

2005092301

28800

14400

720000

86400 )

@ IN NS DNS.test.com.

90 IN PTR www.test.com.

[root@dongying named]#

9、 [root@dongying named]#dig > named.root 直接成生named.root文件内容如下：

; <<>> DiG 9.2.4 <<>>

;; global options: printcmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20542

;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 13

;; QUESTION SECTION:

;. IN NS

;; ANSWER SECTION:

. 16945 IN NS m.root-servers.net.

. 16945 IN NS a.root-servers.net.

. 16945 IN NS b.root-servers.net.

. 16945 IN NS c.root-servers.net.

. 16945 IN NS d.root-servers.net.

. 16945 IN NS e.root-servers.net.

. 16945 IN NS f.root-servers.net.

. 16945 IN NS g.root-servers.net.

. 16945 IN NS h.root-servers.net.

. 16945 IN NS i.root-servers.net.

. 16945 IN NS j.root-servers.net.

. 16945 IN NS k.root-servers.net.

. 16945 IN NS l.root-servers.net.

;; ADDITIONAL SECTION:

a.root-servers.net. 534156 IN A 198.41.0.4

b.root-servers.net. 534286 IN A 192.228.79.201

c.root-servers.net. 532457 IN A 192.33.4.12

d.root-servers.net. 532458 IN A 128.8.10.90

e.root-servers.net. 534157 IN A 192.203.230.10

f.root-servers.net. 532457 IN A 192.5.5.241

g.root-servers.net. 534246 IN A 192.112.36.4

h.root-servers.net. 534207 IN A 128.63.2.53

i.root-servers.net. 532458 IN A 192.36.148.17

j.root-servers.net. 599763 IN A 192.58.128.30

k.root-servers.net. 532457 IN A 193.0.14.129

l.root-servers.net. 532457 IN A 198.32.64.12

m.root-servers.net. 532457 IN A 202.12.27.33

;; Query time: 184 msec

;; SERVER: 192.168.0.1#53(192.168.0.1)

;; WHEN: Thu Sep 22 17:54:13 2005

;; MSG SIZE rcvd: 436

10、 vi test.zone 文件内容如下：

[root@dongying named]# more test.zone

$TTL 86400

@ IN SOA DNS.test.com. root.DNS.test.com. (

2005092301

28800

14400

720000

86400 )

@ IN NS DNS.test.com.

@ IN MX 5 DNS.test.com.

DNS IN A 192.168.0.90

www IN A 192.168.0.90

[root@dongying named]#

11、vi /etc/resolv.conf

把这句nameserver 192.168.0.90写到第一行。

12、测试：

[root@dongying named]# host 192.168.0.90

90.0.168.192.in-addr.arpa domain name pointer www.test.com.

[root@dongying named]#

[root@dongying named]# host www.test.com

www.test.com has address 192.168.0.90

[root@dongying named]#

这样就行了。

13、其它机器访问，把DNS设为192.168.0.90就行了，如果不行，重启或等一会。

运行cmd

nslookup 回车

192.168.0.90 回车

www.test.com 回车

一般能看到正常结果。