实验准备和目的

1.目的
来自不同地址的客户机请求解析同一域名时，为其提供不同的解析结果
2.IP设置

	外网	DNS服务器eth1	DNS服务器eth0	内网
IP	172.16.16.1	172.16.16.77	192.168.2.77	192.168.2.1
网关	172.16.16.77	172.16.16.77	192.168.2.77	192.168.2.77
网卡	vnet3	vnet3	vnet4	vnet4

3.关闭防火墙和沙盒

iptables -F
setenforce 0

DNS服务器

1.安装bind软件

cd /media/RHEL_6.5\ x86_64\ Disc\ 1/Packages/
rpm -ivh bind-9.8.2-0.17.rc1.el6_4.6.x86_64.rpm 

2.编辑主配置文件named.conf

 vim /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;

//      dnssec-enable yes;
//      dnssec-validation yes;
//      dnssec-lookaside auto;
//
//      /* Path to ISC DLV key */
//      bindkeys-file "/etc/named.iscdlv.key";
//
//      managed-keys-directory "/var/named/dynamic";
};

logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
        };
};

//zone "." IN {
//      type hint;
//      file "named.ca";
//};

include "/etc/named.rfc1912.zones";
//include "/etc/named.root.key";

2.编辑主配置文件区域部分named.rfc1912.zones

vim /etc/named.rfc1912.zones 

view "LAN" {
match-clients { 192.168.2.0/24;};
zone "kgc.com" IN {
        type master;
        file "kgc.com.zone.lan";
};

zone "localhost.localdomain" IN {
        type master;
        file "named.localhost";
        allow-update { none; };
};

zone "localhost" IN {
        type master;
        file "named.localhost";
        allow-update { none; };
};

zone "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" IN {
        type master;
        file "named.loopback";
        allow-update { none; };
};

zone "1.0.0.127.in-addr.arpa" IN {
        type master;
        file "named.loopback";
        allow-update { none; };
};
zone "0.in-addr.arpa" IN {
        type master;
        file "named.empty";
        allow-update { none; };
};
};
view "WAN" {
match-clients {any;};
zone "kgc.com" IN {
        type master;
        file "kgc.com.zone.wan";
};
};                            

3.创建区域文件

cd /var/named/
cp -p named.localhost kgc.com.zone.lan
cp -p named.localhost kgc.com.zone.wan

4.编辑区域文件

内网正向解析设置：

vim /var/named/kgc.com.zone.lan

$TTL 1D
@       IN SOA  kgc.com. root.kgc.com. (
                                        2018102301      ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      @
        A       127.0.0.1
        AAAA    ::1
kaifa   A       192.168.2.1
yunwei A       192.168.2.2
ceshi   A       192.168.2.3
www     A       192.168.2.100

外网正向解析设置：

vim /var/named/kgc.com.zone.wan

$TTL 1D
@       IN SOA  kgc.com. root.kgcc.com. (
                                        2018102301      ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      @
        A       127.0.0.1
        AAAA    ::1
kaifa   A       192.168.2.100
ceshi   A       192.168.2.100
yunwei  A       192.168.2.100
www     A       192.168.2.100

5.重启服务

service named restart

6.指定DNS服务器IP

vim /etc/resolv.conf

# Generated by NetworkManager
nameserver 192.168.2.77
nameserver 172.16.16.77

内网

1.指定DNS服务器IP

vim /etc/resolv.conf

# Generated by NetworkManager
nameserver 192.168.2.77

2.验证测试

nslookup kaifa.kgc.com
nslookup yunwei.kgc.com
nslookup ceshi.kgc.com
nslookup www.kgc.com

外网

1.指定DNS服务器IP

vim /etc/resolv.conf

# Generated by NetworkManager
nameserver 172.16.16.77

2.验证测试

nslookup kaifa.kgc.com
nslookup yunwei.kgc.com
nslookup ceshi.kgc.com
nslookup www.kgc.com

成功！