redhat5.5 下DSN配置

安装dns  机子ip地址是192.168.10.252
yum install -y caching-nameserver* system-config-bind* bind*
[root@localhost etc]# cd /var/named/chroot/etc/
[root@localhost etc]# cp -p named.caching-nameserver.conf named.conf

(1)配置named有5出需要配置成any
[root@localhost etc]# vim named.conf
listen-on port 53 { any; };
allow-query     { any; };
allow-query-cache { any; };
match-clients      { any; };
match-destinations { any; };
（2）配置区域文件，添加下面几行，这是为自己做的一个正向文件和一个反向文件
[root@localhost etc]# vim named.rfc1912.zones
#fuzhi
zone "scan.com" IN {
        type master;
        file "scan.com.zone.db";
        allow-update { none; };
};
zone "10.168.192.in-addr.arpa" IN {   ///ip地址前三位
        type master;
        file "scan.com.arpa.db";
        allow-update { none; };
};

（3）进入主要区域文件的所在目录
[root@localhost chroot]# cd /var/named/chroot/var/named/
localdomain.zone为正向区域的模板
[root@localhost named]# cp -p localdomain.zone sacn.com.zone.db
[root@localhost named]# vim scan.com.zone.db
$TTL    86400
@               IN SOA  @  root (
               2012051701                      ; serial (d. adams)

				IN NS           dns.scan.com
                IN MX 5         mail.scan.com

dns             IN A            192.168.10.252
www             IN A            192.168.10.240   ///为空地址

named.local为反向区域的模板
[root@localhost named]# cp -p named.local scan.com.arpa.db
[root@localhost named]# vim scan.com.arpa.db
 @       IN      SOA     @  root  (
         2012051701 ; Serial
		IN      NS      dns.scan.com
        IN MX 5  mail.scan.com
1       IN      PTR     dns.scan.com
2       IN      PTR     www.scan.com


（4）赋权
 chown :named /var/named/chroot/var/named/scan.com.*

 （5） 用语法检查工具检查配置
 # named-checkconf /var/named/chroot/etc/named.caching-nameserver.conf
 # named-checkzone sulinux.com /var/named/chroot/var/named/scan.com.*
zone sulinux.com/IN: loaded serial 2012051701
OK
没有问题 重新启动named
 service named restart
chkconfig named on

（6）///每台机子都要修改
[root@localhost named]# vim /etc/resolv.conf
nameserver 192.168.10.252
更改resolv.conf文件之后就可以进行解析.///每台机子都要修改
[root@localhost named]# host www.scan.com
www.scan.com has address 192.168.10.240

[root@localhost named]#nslookup
> www.scan.com