反向、缓存、主从和分离域名解析实验

反向解析

编辑区域配置文件

yum install -y bind
systemctl stop firewalld.service      //关闭防火墙
vim /etc/named.conf                //更改主配值文件

[root@localhost named]# cp -p named.localhost test.com.zone
[root@localhost named]# vim test.com.zone

win10上修改DNS服务器IP地址

在win10上测试

[root@localhost named]# nslookup 192.168.43.100   //解析ip

缓存服务器

[root@AIDEBOY home]# ifconfig ens33
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.43.135  netmask 255.255.255.0  broadcast 192.168.43.255
        inet6 fe80::b99f:450f:f461:751d  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:7f:e2:cf  txqueuelen 1000  (Ethernet)
        RX packets 617488  bytes 921706213 (879.0 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 268897  bytes 16324895 (15.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@AIDEBOY home]# yum install -y bind  
[root@AIDEBOY ~]# systemctl start named        //开启named

DNS服务器配置：

[root@localhost slaves]# ifconfig ens33
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.43.129  netmask 255.255.255.0  broadcast 192.168.43.255
        inet6 fe80::5fa0:eef1:92e9:a987  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:62:71:0f  txqueuelen 1000  (Ethernet)
        RX packets 627957  bytes 927366002 (884.4 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 283225  bytes 17278824 (16.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
[root@AIDEBOY home]# yum install -y bind 
[root@localhost slaves]# vim /etc/named.conf

[root@localhost ~]# vim /etc/named.rfc1912.zones

[root@localhost ~]# cd /var/named
[root@localhost named]# ls
data  dynamic  named.ca  named.empty  named.localhost  named.loopback  slaves
[root@localhost named]# cp -p named.localhost test.com.zone 
[root@localhost named]# vim test.com.zone

[root@localhost named]# systemctl start named
[root@localhost named]# netstat -anup | grep named
udp        0      0 192.168.122.1:53        0.0.0.0:*                           80197/named         
udp        0      0 192.168.43.129:53       0.0.0.0:*                           80197/named         
udp        0      0 127.0.0.1:53            0.0.0.0:*                           80197/named         
udp6       0      0 ::1:53                  :::*                                80197/named    

win10客户端配置

在win10上测试

主域名服务器

特定DNS区域的权威服务器，具有唯一性

负责维护该区内所有域名->IP地址的映射记录

需要自行建立所负责区域的地址数据文件

从域名服务器

也称为辅助域名服务器，是对主域名服务器的热备份

其维护的域名->IP地址记录来源于主域名服务器

需要从主域名服务器自动同步区域地址数据库

1.编辑从域名服务器修改配置文件，开启服务

vim /etc/named.conf

vim /etc/named.rfc1912.zones

named-checkconf 检查
systemctl restart named  重启 
rndc reload  

linux主的配置

linux从的配置

named-checkconf 检查
systemctl restart named  重启 
rndc reload  

从域名解析的文件在l /var/named/slaves/

ll /var/named/slaves/

分离解析