DNS简单搭建

一、安装服务

设置主机名

[root@localhost named]# hostnamectl set-hostname k1.kk.cn
[root@localhost named]# bash
[root@k1 named]# hostname
k1.kk.cn

安装软件包

[root@localhost ~]# yum install -y bind*

二、编辑配置文件

全局配置选项options

listen-on port 53 { 127.0.0.1; }; 　　IP改为服务器IP，我这是192.168.22.77

allow-query     { localhost; };　　　　localhost改为允许的网段，any为所有

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

options {
        listen-on port 53 { 192.168.22.77; };
        listen-on-v6 port 53 { ::1; };
        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";
        allow-query     { any; };

写入正反向配置

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

zone "kk.cn" IN {
        type master;
        file "kk.a.zone";
};

zone "22.168.192.in-addr.arpa" IN {
        type master;
        file "kk.b.zone";
};

编辑正向配置文件

[root@localhost ~]# cd /var/named/
[root@localhost named]# cp -p named.localhost kk.a.zone
$TTL 1D
@       IN SOA  kk.cn. root.k2.kk.cn. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      k2.kk.cn.
k2      A       192.168.22.77
k1      A       192.168.22.21

正向批量操作

#在最后面添加
$GENERATE 1-30 k$ A 192.168.22.$
$GENERATE 1-30 k$ CNAME k$

编辑反向配置文件

[root@localhost named]# vim kk.b.zone 
$TTL 1D
@       IN SOA  kk.cn. root.k2.kk.cn. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      k2.kk.cn.
77      PTR     k2.kk.cn.
21      PTR     k1.kk.cn.

反向批量操作

#在最后面添加
$GENERATE 1-30 $ PTR k$.kk.cn

三、重启DNS服务

[root@localhost named]# systemctl restart named

四、配置网卡的DNS

配置DNS1=服务器IP地址

我这为192.168.22.21

[root@localhost named]# vim /etc/sysconfig/network-scripts/ifcfg-ens33 
TYPE=Ethernet
BOOTPROTO=static
NAME=ens33
UUID=727a9a45-718b-45bc-a13c-e6f5c35ab721
DEVICE=ens33
ONBOOT=yes
IPADDR=192.168.22.21
NETMASK=255.255.255.0
GATEWAY=192.168.22.2
DNS1=192.168.22.21

重启网卡服务

[root@localhost named]# systemctl restart network

五、测试

[root@localhost named]# nslookup 
> 192.168.22.21
Server:        192.168.22.77
Address:    192.168.22.77#53

21.22.168.192.in-addr.arpa    name = k1.kk.cn.
> k1.kk.cn    
Server:        192.168.22.77
Address:    192.168.22.77#53

Name:    k1.kk.cn
Address: 192.168.0.1
Name:    k1.kk.cn
Address: 192.168.22.21
> ^C[root@localhost named]# nslookup 
> 192.168.22.21
Server:        192.168.22.77
Address:    192.168.22.77#53

21.22.168.192.in-addr.arpa    name = k1.kk.cn.
> 192.168.22.77
Server:        192.168.22.77
Address:    192.168.22.77#53

77.22.168.192.in-addr.arpa    name = k2.kk.cn.
> k1.kk.cn
Server:        192.168.22.77
Address:    192.168.22.77#53

Name:    k1.kk.cn
Address: 192.168.0.1
Name:    k1.kk.cn
Address: 192.168.22.21
> k2.kk.cn    
Server:        192.168.22.77
Address:    192.168.22.77#53

Name:    k2.kk.cn
Address: 192.168.0.2
Name:    k2.kk.cn
Address: 192.168.22.77

六、附录

待添加