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使用 bind 配置 DNS 实验
一、实验环境：
Red Hat Enterprise Linux Server release 5.6
主机名
IP
系统版本
Host role
hotel01
192.168.2.111
OEL5.6
server
hotel02
192.168.2.112
OEL5.6
client
hotel03
192.168.2.113
OEL5.6
client
…..
配置说明：NDS 服务器放在了 hotel01（master）节点上，对 hotel01、hotel02、hotel03 节点的主机名进行解析。
二、安装配置 DNS
1. 安装 bind、caching-nameserver 软件包
– 因使用的是未注册的 OEL 版本，所以 yum 不能在线安装 bind 软件
– 安装下面 bind 包，如果缺少可以在安装盘上查找并安装
[root@hotel01 ~]# rpm -qa|grep bind
bind-utils-9.3.6-16.P1.el5
ypbind-1.19-12.el5
bind-chroot-9.3.6-16.P1.el5
bind-9.3.6-16.P1.el5
bind-libs-9.3.6-16.P1.el5
bind-libbind-devel-9.3.6-16.P1.el5
bind-devel-9.3.6-16.P1.el5
bind-libs-9.3.6-16.P1.el5
[root@hotel01 ~]# rpm -qa|grep caching-nameserver
caching-nameserver-9.3.6-16.P1.el5
2. 修改 bind 配置文件
BIND 的配置文件 name.conf 还有区域文件都在 /var/named/chroot/ 目录下
配置文件 named.conf 在 /var/named/chroot/etc/ 下，区域配置文件在 /var/named/chroot/var/named/ 下
1) 修改配置文件 named.conf
[root@hotel01 ~]# cd /var/named/chroot/etc
[root@hotel01 etc]# cp -p named.caching-nameserver.conf named.conf
[root@hotel01 etc]# vi named.conf
options {
listen-on port 53 {any;};– 把 127.0.0.1 改成 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”;
// Those options should be used carefully because they disable port
// randomization
// query-source port 53;
// query-source-v6 port 53;
allow-query {any;};
allow-query-cache {any;};
};
logging {
channel default_debug {
file “data/named.run”;
severity dynamic;
};
};
view localhost_resolver {
match-clients {any;};– 把 localhost 改成 any
match-destinations {any;};– 把 localhost 改成 any
recursion yes;
include “/etc/named.rfc1912.zones”;
};
2) 修改配置文件 named.rfc1912.zones，在文件中添加以下内容
[root@hotel01 etc]# pwd
/var/named/chroot/etc
[root@hotel01 etc]# vi named.rfc1912.zones
zone “licz.com” IN {// 这是自己设置的域名
type master;
file “licz.com.zone”;
allow-update {none;};
};
zone “2.168.192.in-addr.arpa” IN {// 这是反向配置文件
type master;
file “2.168.192.in-addr.zone”;
allow-update {none;};
};
3) 创建 leonarding.com.zone 和 2.168.192.in-addr.zon 区域文件
[root@hotel01 etc]# cd /var/named
[root@hotel01 named]# cp -p localdomain.zone chroot/var/named/licz.com.zone
[root@hotel01 named]# cp -p named.local chroot/var/named/2.168.192.zone
– 修改 leonarding.com.zone 和 2.168.192.in-addr.zon 区域文件
[root@hotel01 named]# cd /var/named/chroot/var/named
[root@hotel01 named]# vi licz.com.zone
$TTL 86400
@ IN SOA localhost root (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS localhost
// 添加下面的正向文件内容
hotel01 IN A 192.168.2.111
hotel02 IN A 192.168.2.112
hotel03 IN A 192.168.2.113
[root@hotel01 named]# vi 2.168.192.in-addr.zone
$TTL 86400
@ IN SOA localhost. root.localhost. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ) ; Minimum
IN NS localhost.
// 添加下面的反向向文件内容
111 IN PTR hotel01.licz.com
112 IN PTR hotel02.licz.com
113 IN PTR hotel03.licz.com
4) 修改各节点 /etc/resolv.conf 文件
[root@hotel01 named]# vi /etc/resolv.conf
nameserver 192.168.2.111
[root@hotel02 named]# vi /etc/resolv.conf
nameserver 192.168.2.111
[root@hotel03 named]# vi /etc/resolv.conf
nameserver 192.168.2.111
3. 验证测试
[root@hotel01 etc]# nslookup
> hotel01.licz.com
Server: 192.168.2.111
Address: 192.168.2.111#53
Name: hotel01.licz.com
Address: 192.168.2.111
> hotel02.licz.com
Server: 192.168.2.111
Address: 192.168.2.111#53
Name: hotel02.licz.com
Address: 192.168.2.112
> hotel03.licz.com
Server: 192.168.2.111
Address: 192.168.2.111#53
Name: hotel03.licz.com
Address: 192.168.2.113
[root@hotel01 named]# ping hotel03.licz.com
PING hotel03.licz.com (192.168.2.113) 56(84) bytes of data.
64 bytes from hotel03 (192.168.2.113): icmp_seq=1 ttl=64 time=10.8 ms
64 bytes from hotel03 (192.168.2.113): icmp_seq=2 ttl=64 time=0.360 ms
64 bytes from hotel03 (192.168.2.113): icmp_seq=3 ttl=64 time=0.332 ms
64 bytes from hotel03 (192.168.2.113): icmp_seq=4 ttl=64 time=0.299 ms
64 bytes from hotel03 (192.168.2.113): icmp_seq=5 ttl=64 time=0.306 ms
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