DNS分离解析

实验环境：

一台内网（client）1块网卡；一台网关（dns）2块网卡；一台外网1块网卡

DNS服务器开启路由转发

[root@localhost ~]# vi /etc/sysctl.conf

net.ipv4.ip_forward = 1

[root@localhost ~]# sysctl -p

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

搭建局域网DNS服务器，要求使用单独的客户机解析

www.itxdl.cn 为 10.123.123.123

blog.itxdl.cn 为 11.123.123.123

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

options {
listen-on port 53 { any; };
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; };
recursion yes;