配置dns服务的正反向解析

准备工作

客户端服务端进行如下配置：

[root@localhost ~]# setenforce 0
[root@localhost ~]# systemctl stop firewalld
[root@localhost ~]# nmcli connection modify ens160 ipv4.method manual ipv4.address '192.168.220.130/24' ipv4.gateway '192.168.220.2' ipv4.dns '114.114.114.114'
[root@localhost ~]# nmcli connection reload
[root@localhost ~]# nmcli connection up ens160
连接已成功激活（D-Bus 活动路径：/org/freedesktop/NetworkManager/ActiveConnection/2）
[root@localhost ~]# yum install bind -y


[root@localhost ~]# setenforce 0
[root@localhost ~]# systemctl stop firewalld
[root@localhost ~]# nmcli connection mo
modify   monitor  
[root@localhost ~]# nmcli connection modify ens160 ipv4.address '192.168.220.131/24' ipv4.gateway '192.168.220.2' ipv4.dns '114.114.114.114'
[root@localhost ~]# nmcli connection reload 
[root@localhost ~]# nmcli connection up ens160
连接已成功激活（D-Bus 活动路径：/org/freedesktop/NetworkManager/ActiveConnection/2）
[root@localhost ~]# yum install bind -y

dns服务的正向解析

服务端

一、配置dns主配置文件

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

 

二、编辑区域配置文件

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

 

三、编辑数据配置文件

[root@localhost named]# vim openlab.com.zone

$TTL 1D
openlab.com.    IN SOA  ns.openlab.com. admin.openlab.com. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum

openlab.com.            IN      NS      ns.openlab.com.
ns.openlab.com.         IN      NS      192.168.220.130
www.openlab.com.        IN      A       192.168.220.130
ftp.openlab.com.        IN      A       192.168.220.130
bbs.openlab.com.        IN      A       192.168.220.130
www1.openlab.com.       IN      CNAME   www.openlab.com.

四、重启服务

[root@localhost named]# systemctl start named

五、客户端测试

1、将客户端的网卡配置文件中的DNS解析地址修改为服务端的IP地址

[root@localhost ~]# vim /etc/NetworkManager/system-connections/ens160.nmconnection 
1

 

2、激活

[root@localhost ~]# nmcli connection reload 
[root@localhost ~]# nmcli connection up ens160

3、客户端测试

[root@localhost ~]# nslookup
> www.openlab.com
Server:		192.168.220.130
Address:	192.168.220.130#53

Name:	www.openlab.com
Address: 192.168.220.130
> www1.openlab.com
Server:		192.168.220.130
Address:	192.168.220.130#53

www1.openlab.com	canonical name = www.openlab.com.
Name:	www.openlab.com
Address: 192.168.220.130

> bbs.openlab.com
Server:		192.168.220.130
Address:	192.168.220.130#53

Name:	bbs.openlab.com
Address: 192.168.220.130

> ftp.openlab.com
Server:		192.168.220.130
Address:	192.168.220.130#53

Name:	ftp.openlab.com
Address: 192.168.220.130

注意：输入ctrl+d退出nslookup

或者使用host命令查看

[root@localhost ~]# host www.openlab.com
www.openlab.com has address 192.168.220.130

dns服务的反向解析

服务端

一、编辑区域配置文件

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

 二、编辑数据配置文件

[root@localhost named]# cd /var/named
[root@localhost named]# cp -a named.loopback 192.168.220.arpa
[root@localhost named]# vim 192.168.220.arpa

$TTL 1D
@       IN SOA  ns.openlab.com. admin.openlab.com. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      ns.openlab.com.
130     IN      PTR     ns.openlab.com.
130     IN      PTR     www.openlab.com.
130     IN      PTR     bbs.openlab.com.
130     IN      PTR     ftp.openlab.com.

三、重启服务

[root@localhost named]# systemctl restart named

四、客户端测试