DNS 主服务器的配置
以前在做实验的过程中总结和写的一些教程的一些资料，一直没时间发布到博客上面，五一到了，终于有点时间发布啦！关于Linux上面还会有RHCE系列的学习笔记发表
1、 安装软件包：
[root@master ~]# mount /dev/cdrom /media/cdrom/
mount: block device /dev/cdrom is write-protected, mounting read-only
[root@master ~]# cd /media/cdrom/RedHat/RPMS/
[root@master RPMS]# rpm -ivh bin
bind-9.2.4-2.i386.rpm bind-libs-9.2.4-2.i386.rpm
bind-chroot-9.2.4-2.i386.rpm bind-utils-9.2.4-2.i386.rpm
bind-devel-9.2.4-2.i386.rpm binutils-2.15.92.0.2-10.EL4.i386.rpm
[root@master RPMS]# rpm -ivh bind-9.2.4-2.i386.rpm
warning: bind-9.2.4-2.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
Preparing… ########################################### [100%]
1:bind ########################################### [100%]
[root@master RPMS]# rpm -qa |grep bind
bind-libs-9.2.4-2
ypbind-1.17.2-3
bind-utils-9.2.4-2
bind-9.2.4-2
2、 安装缓存软件包：
[root@master RPMS]# rpm -ivh caching-nameserver-7.3-3.noarch.rpm
warning: caching-nameserver-7.3-3.noarch.rpm: V3 DSA signature: NOKEY, key ID
db42a60e
Preparing… ########################################### [100%]
1:caching-nameserver warning: /etc/named.conf saved as /etc/named.conf.rpmorig
########################################### [100%]
3、 配置主配置文件：
[root@master RPMS]# vi /etc/named.conf
zone “sina.com.” IN {
type master;
file “sina.com.zone”；
};
zone “16.16.172.in-addr.arpa” IN {
type master;
file “172.16.16.zone”；
};
4、 检查配置格式是否正确：
[root@master RPMS]# named-checkconf
5、 配置正向区域文件：
[root@master RPMS]# cd /var/named/
[root@master named]# vi sina.com.zone
$TTL 86400
www.wqmsl.cn@ IN SOA master.sina.com. root.sina.com. (
42
3H
15M
1W
1D )
@ IN NS master.sina.com.
master IN A 172.16.16.10
slave IN A 172.16.16.20
client IN A 172.16.16.30
mail IN CNAME master.sina.com.
6、 检查区域文件是否正确：
[root@master named]# named-checkzone sina.com. /var/named/sina.com.zone
zone sina.com/IN: loaded serial 42
OK
7、 配置反向区域文件：
[root@master named]# cp sina.com.zone 172.16.16.zone
[root@master named]# vi 172.16.16.zone
[root@master named]# cat 172.16.16.zone
$TTL 86400
@ IN SOA master.sina.com. root.sina.com. (
42
3H
15M
1W
1D )
@ IN NS master.sina.com.
10 IN PTR master.sina.com.
20 IN PTR slave.sina.com.
30 IN PTR client.sina.com.
8、检查区域文件是否正确：
[root@master named]# named-checkzone 16.16.172.in-addr-arpa /var/named/172.16.16.zone
zone 16.16.172.in-addr-arpa/IN: loaded serial 42
OK
8、 启动服务
[root@master named]# service named restart
Stopping named: [ OK ]
Starting named: [ OK ]
从 DNS 服务器的配置
1、 安装软件包
[root@slave ~]# mount /dev/cdrom /media/cdrom/
mount: block device /dev/cdrom is write-protected, mounting read-only
[root@slave ~]# cd /media/cdrom/RedHat/RPMS/ [root@slave RPMS]# rpm -ivh bind-9.2.4-2.i386.rpm caching-nameserver-7.3-3.noarch.rpm
warning: bind-9.2.4-2.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
Preparing… ########################################### [100%]
1:bind ########################################### [ 50%]
2:caching-nameserver ########################################### [100%]
[root@slave RPMS]# rpm -qa|grep bind
bind-libs-9.2.4-2
ypbind-1.17.2-3
bind-utils-9.2.4-2
bind-9.2.4-2
2、 更改主配置文件
[root@slave slaves]# vi /etc/named.conf
zone “sina.com.” IN {
type slave;
file “slaves/sina.com.zone”;
masters {172.16.16.10;};
};
zone “16.16.172.in-addr.arpa” IN {
type slave;
file “slaves/172.16.16.ip-addr.arpa”;
masters {172.16.16.10;};
};
3、 启动服务
[root@slave slaves]# service named restart
Stopping named: [ OK ]
Starting named: [ OK ]
4、 查看区域文件是否复制过来
[root@slave slaves]# cd /var/named/slaves/
[root@slave slaves]# ls -l
total 16
-rw——- 1 named named 391 Jun 8 16:50 172.16.16.ip-addr.arpa
-rw——- 1 named named 379 Jun 8 16:41 sina.com.zone
客户端验证工具
[root@client ~]# nslookup
> 172.16.16.10
Server: 172.16.16.10
Address: 172.16.16.10#53
10.16.16.172.in-addr.arpa name = master.sina.com.
> master.sina.com
Server: 172.16.16.10
Address: 172.16.16.10#53
Name: master.sina.com
Address: 172.16.16.10
> 172.16.16.20
Server: 172.16.16.10
Address: 172.16.16.10#53
20.16.16.172.in-addr.arpa name = slave.sina.com.
> 172.16.16.20
Server: 172.16.16.10
Address: 172.16.16.10#53
20.16.16.172.in-addr.arpa name = slave.sina.com.
> mail.sina.com
Server: 172.16.16.10
Address: 172.16.16.10#53
mail.sina.com canonical name = master.sina.com.
Name: master.sina.com
Address: 172.16.16.10
> 172.16.16.10
Server: 172.16.16.10
Address: 172.16.16.10#53
10.16.16.172.in-addr.arpa name = master.sina.com.
>exit
[root@client ~]# dig @172.16.16.10 slave.sina.com
; > DiG 9.2.4 > @172.16.16.10 slave.sina.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; QUESTION SECTION:
;slave.sina.com. IN A
;; ANSWER SECTION:
slave.sina.com. 86400 IN A 172.16.16.20
;; AUTHORITY SECTION:
sina.com. 86400 IN NS master.sina.com.
;; ADDITIONAL SECTION:
master.sina.com. 86400 IN A 172.16.16.10
;; Query time: 86 msec
;; SERVER: 172.16.16.10#53(172.16.16.10)
;; WHEN: Mon Jun 8 16:55:49 2009
;; MSG SIZE rcvd: 85
[root@client ~]# host mail.sina.com
mail.sina.com is an alias for master.sina.com.
master.sina.com has address 172.16.16.10
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