(1)安裝bind包: yum install -y bind
(2)查看配置文件: vim /etc/named.conf
(3)配置DNS
首先:在/etc/named.conf主配置文件新增一條需要解析的域名配置信息
zone "mytest.com" IN {
type master;
file "mytest.com.zone";
};
配置完該主配置文件後可以用named-checkconf命令查看文件配置是否有誤
然後:添加在/var/named/目錄下添加名爲mytest.com.zone的配置文件,配置文件內容爲:
$TTL 1D
@ IN SOA @ admin.mytest.com. (
2016120401 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
IN NS ns.mytest.com.
IN MX 5 mail.mytest.com.
mail IN A 12.12.12.12
ns IN A 192.168.109.131
www IN A 192.168.109.130
bbs IN CNAME www.mytest.com.
最後:進行DNS解析測試
dig @192.168.109.131 www.mytest.com
(如果服務器無法使用dig命令的話請先安裝bind-utils包)
(4)配置反向DNS
首先:配置主配置文件/etc/named.conf
zone "109.168.192.in-addr.arpa" IN {
type master;
file "109.168.192.zone";
};
(其中:109.168.192位24位網段,後面跟上.in-addr.arpa這是固定格式)
然後:配置子配置文件/var/named/109.168.192.zone
$TTL 1D
@ IN SOA @ admin.mytest.com. (
2016120401 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
IN NS ns.mytest.com.
111 IN PTR mail.mytest.com.
131 IN PTR ns.mytest.com.
130 IN PTR www.mytest.com.
(注:其中PTR是反向DNS解析的標誌,注意注意)
最後:進行DNS反向解析測試
dig @192.168.109.131 -x 192.168.109.130
(-x表示反向DNS解析)
(5)DNS解析主從備份的配置(準備兩臺服務器:192.168.109.131(主服務器)、192.168.109.130(從服務器))
首先:配置從服務器(192.168.109.130):
配置/etc/named.conf
zone "mytest.com" IN {
type slave;
file "slaves/mytest.com.zone";
masters { 192.168.109.131; };
};
zone "109.168.192.in-addr.arpa" IN {
type slave;
file "slaves/109.168.192.zone";
masters { 192.168.109.131; };
};
(其中masters表示指定主服務器)
然後:更改主服務器(192.168.109.131)
修改主配置文件:/etc/named.conf
zone "mytest.com" IN {
type master;
file "mytest.com.zone";
notify yes;
also-notify { 192.168.109.130; };
};
zone "109.168.192.in-addr.arpa" IN {
type master;
file "109.168.192.zone";
notify yes;
also-notify { 192.168.109.130; };
};
修改子配置文件,在子配置文件中添加一個域名的解析用來測試主從的實時同步性(比如添加一個hjp.mytest.com的測試域名):
/var/named/mytest.com.zone
$TTL 1D
@ IN SOA @ admin.mytest.com. (
2016120402 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
IN NS ns.mytest.com.
IN MX 5 mail.mytest.com.
mail IN A 12.12.12.12
ns IN A 192.168.109.131
www IN A 192.168.109.130
bbs IN CNAME www.mytest.com.
hjp IN A 121.121.121.121
最後:測試hjp.mytest.com的解析