做Linux DNS

做DNS缓存服务应用
1、修改/etc/named.conf
vi /etc/named.conf
修改本地使用为全部计算机都可以使用
改{ 127.0.0.1; }为{ any; } 
改{ ::1; }为{ any; }
改{ localhost; }为{ any; }
2、重启named服务
service named restart
chkconfig named on

做amao.com的www主机解析
1、在/etc/named.rfc1912.zones文件中开启amao.com的域名，添加
vi /etc/named.rfc1912.zones
添加
zone "amao.com" IN {
        type master;
        file "amao.com.hosts";
};
2、在/var/named中添加amao.com.hosts文件
cd /var/named
cp named.localhost amao.com.hosts
vi amao.com.hosts
修改为
$TTL 1D
@       IN SOA  @ rname.invalid. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      @
        A       127.0.0.1
www IN A        ip
3、修改文件权限
chown root.named amao.com.hosts
4、重启named服务，测试即可
service named restart
 
反向解析
1、在/etc/named.rfc1912.zones文件中开启100.168.192.in-addr.arpa的反向域名，添加
vi /etc/named.rfc1912.zones
添加
zone "100.168.192.in-addr.arpa" IN {
        type master;
        file "192.168.100.rev";
};
2、在/var/named中添加192.168.100.rev文件
cd /var/named
cp named.localhost 192.168.100.rev
vi 192.168.100.rev
修改为
$TTL 1D
@       IN SOA  @ rname.invalid. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      @
        A       127.0.0.1
1 IN PTR www.amao.com.
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作者 “我是学徒”