1、构建缓存域名服务器
[root@localhost ~]# vi /etc/named.conf
"/etc/named.conf" 18L, 430C
options {
listen-on port 53 { 192.168.66.13; };
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";
recursing-file "/var/named/data/named.recursing";
secroots-file "/var/named/data/named.secroots";
allow-query { any; };
recursion yes;
};
zone "." IN {
type hint;
file "named.ca";
};
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ :wq "/etc/named.conf" 18L, 430C written
2、构建主从域名服务器
所有服务器：
iptables -F
systemctl stop firewalld
setenforce 0
配置yum
主服务器：
[root@localhost ~]# yum -y install bind
[root@localhost ~]# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 192.168.200.111
nameserver 192.168.200.112
[root@localhost ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.200.111 ns1.crushlinux.com
192.168.200.112 ns2.crushlinux.com
[root@localhost ~]# cat /etc/named.conf
options {
directory "/var/named";
};
zone "crushlinux.com" IN {
type master;
file "crushlinux.zheng";
allow-transfer { 192.168.200.112; };
};
zone "200.168.192.in-addr.arpa" IN {
type master;
file "crushlinux.fan";
allow-transfer { 192.168.200.112; };
};
[root@localhost ~]#
[root@localhost ~]# cat /var/named/crushlinux.zheng
$TTL 86400
@ IN SOA crushlinux.com. admin.crushlinux.com. (
20190817
3H
15M
1W
1D
)
IN NS ns1.crushlinux.com.
IN NS ns2.crushlinux.com.
IN MX 10 mail.crushlinux.com.
ns1 IN A 192.168.200.111
ns2 IN A 192.168.200.112
mail IN A 192.168.200.113
www IN A 192.168.200.114
study IN A 192.168.200.115
* IN A 192.168.200.111
ftp IN CNAME www
[root@localhost ~]# cat /var/named/crushlinux.fan
$TTL 86400 管理员邮箱
@ IN SOA crushlinux.com. admin.crushlinux.com. (
20190817
3H
15M
1W
1D
)
IN NS ns1.crushlinux.com.
IN NS ns2.crushlinux.com.
IN MX 10 mail.crushlinux.com.
111 IN PTR ns1.crushlinux.com.
112 IN PTR ns2.crushlinux.com.
113 IN PTR mail.crushlinux.com.
114 IN PTR www.crushlinux.com.
115 IN PTR study.crushlinux.com.
111 IN PTR ns1.crushlinux.com.
[root@localhost ~]# chown :named /var/named/crushlinux.*
[root@localhost ~]# named-checkconf -z /etc/named.conf
[root@localhost ~]# named-checkzone crushlinux.com /var/named/crushlinux.zheng
[root@localhost ~]# named-checkzone crushlinux.com /var/named/crushlinux.fan
[root@localhost ~]# systemctl restart named
===============================================================================
从服务器：
[root@localhost ~]# yum -y install bind
[root@localhost ~]# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 192.168.200.111
nameserver 192.168.200.112
[root@localhost ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.200.111 ns1.crushlinux.com
192.168.200.112 ns2.crushlinux.com
[root@localhost ~]# cat /etc/named.conf
options {
directory "/var/named";
};
zone "crushlinux.com" IN {
type slave;
file "slaves/crushlinux.zheng";
masters { 192.168.200.111; };
};
zone "200.168.192.in-addr.arpa" IN {
type slave;
file "slaves/crushlinux.fan";
masters { 192.168.200.111; };
};
[root@localhost ~]# systemctl restart named
=======================================================
注意：
/etc/resolv.conf它是DNS客户机配置文件，用于设置DNS服务器的IP地址及DNS域名，还包含了主机的域名搜索顺序。该文件是由域名解析 器（resolver，一个根据主机名解析IP地址的库）使用的配置文件。它的格式很简单，每行以一个关键字开头，后接一个或多个由空格隔开的参数。