CentOS7.4 配置DNS服务器

1.安装bind软件包

yum install -y bind*

2.各配置文件路径索引

/etc/named.conf #主配置文件/var/named/ #解析数据库文件目录/etc/named.rfc1912.zones #默认的解析区域文件

3.主配置文件的修改

#以下修改只是我做改动的地方 vim /etc/named.conf options {       #listen-on port 53 { 127.0.0.1; }; 注释掉该行表示在所有接口IP启用53端口的监听       #listen-on-v6 port 53 { ::1; }; 关闭IPv6的监听        directory       "/var/named";        dump-file       "/var/named/data/cache_dump.db";        statistics-file "/var/named/data/named_stats.txt";        memstatistics-file "/var/named/data/named_mem_stats.txt";        recursing-file  "/var/named/data/named.recursing";        secroots-file   "/var/named/data/named.secroots";        #allow-query     { localhost; }; 允许所有主机进行DNS查询，默认只允许本地查询 zone "example.com" IN { type master;  file "example.com.zone"； #如果不加绝对路径的话，默认会将配置文件认为是在/var/named目录内 }；         #include "/etc/named.rfc1912.zones"; 注释掉该行include "/etc/named.root.key";

4.创建数据库文件

cd /var/named/ cp named.localhost example.com.zone #通过默认的区域文件创建一个vim example.com.zone $TTL 1D@IN SOAexample.com dns.example.com.                                                  (0; serial                                                  1D; refresh                                                 1H; retry                                                  1W; expire                                                  3H ); minimum @        INNSdns.example.com. dnsINA172.16.104.123wwwINA172.16.104.123

5.重启测试

systemctl restart named[root@localhost named]# systemctl status named #查看一下状态 cat /etc/resolv.conf #确定DNS地址 # Generated by NetworkManager nameserver 172.16.104.123           [root@localhost ~]# nslookup www.example.com Server:172.16.104.123 Address:172.16.104.123#53 Name:www.example.com Address: 172.16.104.123