DNS域名解析服务器的配置
一、概念：DNS（domain name server）域名解析服务器，通过它，每个站点只需维护它自己的IP地址到计算机名的映射。每个站点把这一映射放入一个可供公开查询的数据库，因此任何人想查找该站点中对应主机名的IP地址时，只需简单地查询该站点的数据库。
功能：1.提供email寻路2.分散网络管理3.有效搜寻域4.分级管理域名
DNS域名解析示意图
如图： .–>网站站点" rel="nofollow" /> #yum -y install bind* caching-nameserver
#/etc/init.d/named start
#chkconfig named on
2.修改配置文件
| #vim /var/named/chroot/etc/named.caching-nameserver.conf 修改named的conf模版 options { listen-on port 53 { 127.0.0.1; }; —> 改成any listen-on-v6 port 53 { ::1; }; —>可以用//在前面注释掉 IPV6 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 { localhost; }; —> 改成any allow-query-cache { localhost; }; —>删除 }; logging { channel default_debug { file “data/named.run”; severity dynamic; }; }; view localhost_resolver { match-clients { localhost; }; —> 改成any match-destinations { localhost; }; —> 改成any recursion yes; include “/etc/named.rfc1912.zones”; }; |
3.修改解析对应zone文件的名字。
| #vim /var/named/chroot/etc/named.rfc1912.zones |
一份以下文件
| zone “localhost” IN { —>改为AAA.com type master; file “localhost.zone“; —>改为AAA.com.zone allow-update { none; }; }; zone “0.0.127.in-addr.arpa” IN { —>改为0.168.192.in-addr.arpa 必须为倒置IP |
4.修改生成zone正向和反向解析文件
| #cd /var/named/chroot/var/named/ #cp localdomain.zone A网站站点" rel="nofollow" /> www IN A 192.168.0.5 ftp IN A 192.168.0.15 w IN CNAME www.A网站站点" rel="nofollow" /> 5 IN PTR www.A网站站点" rel="nofollow" /> #chown root.named A网站站点" rel="nofollow" /> #named-checkconf /var/named/chroot/etc/named-caching-nameserver.conf #named-checkconf /var/named/chroot/etc/named-rfc1912.zones #named-checkzone A网站站点" rel="nofollow" /> #vim /etc/resolv.conf 添加本地域名解析 serch A网站站点" rel="nofollow" /> |