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在这篇文章中我们来了解一下“如何用CentOS搭建自己的DNS服务器？”，一些朋友可能会遇到这方面的问题，对此在下文小编向大家来讲解，内容详细，易于理解，希望大家阅读完这篇能有收获哦，有需要的朋友就往下看吧！

系统环境：CENTOS6.4

1、安装软件：

yum install bind -y

2、配置，编辑完成以后的主配置文件内容如下：

[root@centos64 yum.repos.d]# cat /etc/named.conf
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//

options {
listen-on port 53 { 193.168.120.91; };
//listen-on-v6 port 53 { ::1; };           #此处须注释掉，否则在IPV4的网络环境下，添加反向解析以后，DNS服务不能启动
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 no;         #此处将yes改为no,否则转发解析互联网的域名失败
dnssec-validation no;     #此处将yes改为no,否则转发解析互联网的域名失败

/* 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";

zone "bcdgptv.com"    IN {
type master;
file "named.bcdgptv.com";
};

zone "120.168.193.in-addr.arpa" IN {
type master;
file "named.193.168.120";
};

正向和反向的DNS解析文件如下，注意，须从左至右，左边不能留有空格，顶着左边书写，否则服务不能启动

[root@centos64 named]# pwd
/var/named
[root@centos64 named]# ls
data  dynamic  named.193.168.120  named.bcdgptv.com  named.ca  named.empty  named.localhost  named.loopback  slaves
[root@centos64 named]# cat named.bcdgptv.com
$TTL 3H
@    IN SOA    centos64.bcdgptv.com. admin@bcdgptv.com(
0    ; serial
1D    ; refresh
1H    ; retry
1W    ; expire
3H )    ; minimum
@                 IN     NS        centos64.bcdgptv.com.
centos64        IN    A        193.168.120.91

@                IN    MX    10    cos64.bcdgptv.com.

cos64        IN    A        193.168.120.69
abcdefgh        IN    CNAME        centos64
racnode1        IN    A        193.168.120.71
[root@centos64 named]# cat named.193.168.120
$TTL 3H
@      IN      SOA    centos64.bcdgptv.com. admin@bcdgptv.com (
0    ; serial
1D    ; refresh
1H    ; retry
1W    ; expire
3H )    ; minimum
@ IN  NS  centos64.bcdgptv.com.
@      IN      MX  10    cos64.bcdgptv.com
91    IN      PTR       centos64
69    IN       PTR      cos64
71    IN       PTR   racnode1

客户端查询验证：

[root@racnode1 BACKUP-1]# nslookup
> cos64.bcdgptv.com
Server:         193.168.120.91
Address:        193.168.120.91#53

Name:   cos64.bcdgptv.com
Address: 193.168.120.69

> abcdefgh.bcdgptv.com
Server:         193.168.120.91
Address:        193.168.120.91#53

abcdefgh.bcdgptv.com    canonical name = centos64.bcdgptv.com.
Name:   centos64.bcdgptv.com
Address: 193.168.120.91

> set type=mx
> bcdgptv.com
Server:         193.168.120.91
Address:        193.168.120.91#53

bcdgptv.com     mail exchanger = 10 cos64.bcdgptv.com.

> www.sina.com.cn
Server:         193.168.120.91
Address:        193.168.120.91#53

Non-authoritative answer:
www.sina.com.cn canonical name = spool.grid.sinaedge.com.

Authoritative answers can be found from:
sinaedge.com
origin = ns1.sinaedge.com
mail addr = null.sinaedge.com
serial = 20100707
refresh = 10800
retry = 60
expire = 604800
minimum = 60

A记录，别名，MX记录等均能正常查询，互联网的查询也能正常转发，服务部署成功

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