實驗一：搭建DNS服務器
tarena.com
www.tarena.com192.168.10.11
bbs.tarena.com192.168.10.12
blog是bbs別名
1、 安裝軟件包
yum 配置完成
[root@localhost ~]# rpm -q bind bind-chroot caching-nameserver
package bind is not installed
package bind-chroot is not installed
package caching-nameserver is not installed
[root@localhostServer]#yum–y install
bind-9.3.6-20.P1.el5_8.5.x86_64.
rpmbind-chroot-9.3.6-20.P1.el5_8.5.x86_64.rpm caching-nameserver-9.3.6-20.P1.el5_8.5.x86_64.rpm
2、 修改主配置文件
[root@localhost chroot]# cd /var/named/chroot/etc/
[root@localhost etc]# cp named.caching-nameserver.conf named.conf
[root@localhost etc]# vim named.conf
…..
15 listen-on port 53 { 192.168.55.254; };
……
27 allow-query { any; };
28 allow-query-cache { any; };
……
37 match-clients { any; };
38 match-destinations { any; };
[root@localhost etc]# vim named.rfc1912.zones
……
zone "tarena.com" IN { //定義正向區域
type master;
file "tarena.com.zone";
};
zone "55.168.192.in-addr.arpa" IN { //定義反向區域
type master;
file "tarena.com.arpa";
};
[root@localhost etc]# named-checkconf named.conf //檢測語法 無輸出，無錯誤
3、 修改數據庫文件
[root@localhost named]# cp named.local tarena.com.zone
[root@localhost named]# cp named.local tarena.com.arpa
[root@localhost named]# vim tarena.com.zone
$TTL 86400
@ IN SOA localhost. root.localhost. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS dns1.tarena.com.
dns1 IN A 192.168.55.254
www IN A 192.168.55.253
bbs IN A 192.168.55.252
blog IN CNAME bbs
[root@localhost named]# vim tarena.com.arpa
$TTL 86400
@ IN SOA localhost. root.localhost. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS dhs1.tarena.com.
254 IN PTR dns1.tarena.com.
253 IN PTR www.tarena.com.
252 IN PTR bbs.tarena.com.
[root@localhostnamed]#named-checkzonetarena.com tarena.com.zone
zone tarena.com/IN: loaded serial 1997022700
OK
[root@localhostnamed]#named-checkzonetarena.com tarena.com.arpa
zone tarena.com/IN: loaded serial 1997022700
OK
4、 啓動服務
[root@localhost named]# service named restart
[root@localhost named]# chkconfig named on
5、 客戶機測試
nslookup
實驗二：
訪問www.tarena.com時三分之二訪問的地址是192.168.55.254，三分之一訪問的是192.168.55.110，用戶只要輸入對的域名tarena.com就可以訪問，用戶只輸入域名tarena.com也可以訪問
1、 修改數據庫文件
[root@localhost etc]# cd /var/named/chroot/var/named/
[root@localhost named]# vim tarena.com.zone
IN NS dns1.tarena.com.
dns1 IN A 192.168.55.254
www IN A 192.168.55.253
www IN A 192.168.55.253
www IN A 192.168.55.110
bbs IN A 192.168.55.252
blog IN CNAME bbs
tarena.com IN A 192.168.55.110
//只要輸對域名就可以訪問
* IN A 192.168.55.110
//只輸入域名也可以訪問
$GENERATE 20-50 station$ IN A 192.168.55.$
2、 在另一臺PC上安裝httpd
[root@localhostslaves]#scp192.168.55.254:/etc/yum.repos.d/server.repo /etc/yum.repos.d/ //yum
[root@localhost slaves]# yum -y install httpd
[root@localhost slaves]# vim /var/www/html/index.html
<html>
<head><title>this is www.tarena.com</title>
</head>
<body>
<h1>www.tarena.com</h1>
<hr></hr>
cocour=pink
welcome
</body>
</html>
3、 啓動服務
[root@localhost slaves]# service httpd restart
[root@localhost named]# chkconfig httpdon
[root@localhost named]# service named restart
[root@localhost named]# chkconfig named on
4、 客戶端測試
host、
瀏覽器輸入tarena.com
實驗三：搭建從DNS服務器
給上面的主DNS搭建一個輔助DNS
1、安裝軟件包
[root@localhost ~]# rpm -q bind bind-chroot caching-nameserver
package bind is not installed
package bind-chroot is not installed
package caching-nameserver is not installed
[root@localhost ~]# yum -y install bind bind-chroot caching- nameserver
2、修改從DNS的主配置文件
[root@localhost ~]# cd /var/named/chroot/etc/
[root@localhost etc]# cp -p named.caching-nameserver.conf named.conf
[root@localhost etc]# vim named.conf
...
15 listen-on port 53 { 192.168.55.254; };
...
27 allow-query { any; };
28 allow-query-cache { any; };
...
37 match-clients { any; };
38 match-destinations { any; };
[root@ser2 etc]# vim named.rfc1912.zones
...
51 zone "tarena.com" IN {
52 type slave;
53 file "slaves/tarena.com.zone";
54 masters { 192.168.55.110; };
55 };
56
57 zone "10.168.192.in-addr.arpa" IN {
58 type slave;
59 file "slaves/tarena.com.arpa";
60 masters { 192.168.55.110; };
61 };
[root@ser2 etc]# named-checkconf named.conf
3、修改主DNS的主配置文件，添加授權信息
[root@localhost ~]# cd /var/named/chroot/etc/
[root@localhost etc]# vim named.conf //添加21行內容
...
21 allow-transfer { 192.168.55.110; };
...
[root@localhost etc]# service named restart
4、啓動從DNS服務器並驗證
[root@localhost etc]# service named restart
[root@localhost etc]# chkconfig named on
[root@localhost etc]# ls /var/named/chroot/var/named/slaves/
tarena.com.zone tarena.com.arpa