配置DNS伺服器

ip位址

角色安裝內容

192.168.91.129/24

dns伺服器

bind包

192.168.91.134/24

客戶端bind-utils

[root@localhost ~]# curl -o /etc/yum.repos.d/centos-base.repo 
[root@localhost ~]# sed -i 's/$releasever/7/g' /etc/yum.repos.d/centos-base.repo
[root@localhost ~]# yum -y install bind

[root@localhost ~]# cp -a /etc/named.conf
[root@localhost ~]# vim /etc/named.conf
options ;		##修改監聽位址為本機ip位址或者any
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     ;		##允許所有人請求
......

[root@localhost ~]# vim /etc/named.rfc1912.zones
.....
zone "linux.com" in ;
};zone "91.168.192.in-addr.arpa" in ;
};

[root@localhost named]# cp -p named.localhost linux.localhost
[root@localhost named]# cp -p named.empty linux.empty

[root@localhost named]# vim linux.localhost $ttl 1d ##表示快取可以儲存一天 @ in soa linux.com. rname.invalid. ( 0 ; serial 1d ; refresh ##表示一天後重新重新整理 1h ; retry ##若獲取失敗，一小時後再次獲取 1w ; expire 3h ) ; minimum ns dns.linux.com. dns a 192.168.91.129 www a 192.168.91.134 a 127.0.0.1

aaaa ::1

[root@localhost named]# vim linux.empty
$ttl 3h
@       in soa  linux.com. rname.invalid. (
0       ; serial
1d      ; refresh
1h      ; retry
1w      ; expire
3h )    ; minimum
ns      dns.linux.com.
129     ptr     dns.linux.com.
134     ptr     www.linux.com.
a       127.0.0.1
aaaa    ::1

[root@localhost ~]# systemctl start named
[root@localhost ~]# ss -ntlp
state       recv-q send-q                 local address:port                   peer address:port 
listen      0      128                        127.0.0.1:953                               *:*      users:(("named",11886,22))
listen      0      10                    192.168.91.129:53                                *:*      users:(("named",11886,21))

[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0
name="eth0"
hwaddr="00:50:56:33:75:20"
onboot=yes
netboot=yes
uuid="eaf994fe-e7ea-4206-afe0-454b5111aab2"
ipv6init=yes
bootproto=static
name=eth0
device=eth0
ipaddr=192.168.91.134
prefix=24
gateway=192.168.91.2		##
dns1=192.168.91.129		##dns指向dns伺服器
type=ethernet

[root@localhost ~]# yum -y install bind-utils [root@localhost ~]# nslookup > 192.168.91.134 ##客戶端ip位址 server: 192.168.91.129 address: 192.168.91.129#53 134.91.168.192.in-addr.arpa name = www.linux.com. ##解析為www.linux.com > 192.168.91.129 ##服務端位址 server: 192.168.91.129 address: 192.168.91.129#53 129.91.168.192.in-addr.arpa name = dns.linux.com. ##解析為dns.linux.com 注：以上為反向解析 > www.linux.com server: 192.168.91.129 address: 192.168.91.129#53 name: www.linux.com address: 192.168.91.134 name: www.linux.com address: 127.0.0.1 > dns.linux.com server: 192.168.91.129 address: 192.168.91.129#53 name: dns.linux.com address: 192.168.91.129 >

注：以上為正向解析

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