构建主从dns域名解析服务器

配置主从dns域名解析服务器
主域名解析服务器(先安装软件包并关闭防火墙)
[root@localhost ~]# cat /etc/hosts /etc/resolv.conf    //设置hosts和resolv.conf文件//////
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.200.111 ns1.dou.com
192.168.200.112 ns2.dou.com
nameserver 192.168.200.111
nameserver 192.168.200.112
nameserver 202.106.0.20
=====修改主配置文件
[root@localhost ~]# cat /etc/named.conf

options {
 directory  "/var/named";

};

zone "dou.com" IN {
 type master;
 file "dou.zheng";
 allow-transfer { 192.168.200.112; };
 };
zone "200.168.192.in-addr.arpa" IN {
 type master ;
 file "dou.fan";
 allow-transfer { 192.168.200.112; };
 };
[root@localhost named]# cat dou.zheng    ////修改正向解析文件
$TTL 86400
@ IN SOA dou.com. mail.dou.com. (
  20190826
  1D
  1H
  1W
  3H
)
 NS ns1.dou.com.
 NS ns2.dou.com.
ns1 A 192.168.200.111 
ns2 A 192.168.200.112 
www A 192.168.200.113
[root@localhost named]# cat dou.fan  ///修改反向解析文件
$TTL 86400
@ IN SOA dou.com. mail.dou.com. (
  20190826
  1D
  1H
  1W
  3H
)
 NS ns1.dou.com.
 NS ns2.dou.com.
111 PTR ns1.dou.com.
112 PTR ns2.dou.com.
113 PTR www.dou.com.
[root@localhost named]# systemctl start named     ////开启服务
==============================================
从域名解析服务器安装
复制主服务器配置文件到本机
[root@localhost ~]# scp 192.168.200.111:/etc/named.conf  
/etc/named.conf
root@192.168.200.111's password:
named.conf                                                                                                                                       100%  248   299.9KB/s   00:00   
[root@localhost ~]#
[root@localhost ~]# vim /etc/named.conf
[root@localhost ~]# cat /etc/named.conf        ///修改主配置文件

options {
 directory  "/var/named";

};

zone "dou.com" IN {
 type slave;
 file "slaves/dou.zheng";
 masters { 192.168.200.111; };
 };
zone "200.168.192.in-addr.arpa" IN {
 type slave ;
 file "slave/dou.fan";
 masters { 192.168.200.111; };
 };
[root@localhost ~]# vim /etc/hosts   //修改hosts文件
[root@localhost ~]# vim /etc/resolv.conf  //修改resolv.conf文件
[root@localhost ~]# cat /etc/hosts /etc/resolv.conf
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.200.111 ns1.dou.com
192.168.200.112 ns2.dou.com
# Generated by NetworkManager
nameserver 192.168.200.111
nameserver 192.168.200.112
[root@localhost ~]# systemctl start named    //开启