DNS

DNS 真正起作用的檔案： /var/named/chroot/etc/named.conf /var/named/chroot/var/named/baidu.com.zone /var/named/chroot/var/named/0.168.192.com.zone /var/named/chroot/var/named/localhost.zone /var/named/chroot/var/named/named.local /var/named/chroot/var/named/named.ca [root@server~]yum install bind* [root@server~]yum install caching-nameserver [root@server~]cp /etc/named.caching-nameserver.conf . [root@server~]mv named.caching-nameserver.conf named.conf [root@server~]cat /etc/named.rfc1912.zones >> named.conf [root@server~]vim named.conf Options {         Listen-on port 53 { any; };         Directory “/var/named”;         Allow-query    {  any; }; }; Logging {         channel default_debug {         file “data/named.run”;         severity dynamic; Zone “.” IN {         Type hint;         File “named.ca”; Zone “localhost” IN {         type master;         file “localhost.zone”; Zone “0.0.127.in-addr.arpa” IN {         file “named.local”; Zone “baidu.com” IN {         Type master;         File “baidu.com.zone”; Zone “0.168.192.in-addr.arpa” IN {         File “0.168.192.com.zone”; [root@server~]cp named.conf /var/named/chroot/etc/ [root@server~]chgrp named /var/named/chroot/etc/named.conf [root@server~]cp /usr/share/doc/bind-9.3.4/sample/var/named/localdomain.zone named.ca named.local localhost.zone named.root /var/named/chroot/var/named/ [root@server~]mv /var/named/chroot/var/named/localdomain.zone /var/named/chroot/var/named/baidu.com.zone [root@server~]vim /var/named/chroot/var/named/baidu.com.zone @    IN   SOA     www.baidu.com.    Root (                                       42                                       3H                                       15M                                       1W                                       1D )      IN   NS      www.baidu.com. www  IN   A       192.168.0.4 [root@server~]cp /var/named/chroot/var/named/named.local /var/named/chroot/var/named/0.168.192.com.zone [root@server~]vim /var/named/chroot/var/named/0.168.192.com.zone                                       1997022700                                       28800                                        14400                                       3600000                                       86400 )      IN   NS   www.baidu.com. 4    IN   PTR  www.baidu.com. [root@server~]chgrp named /var/named/chroot/var/named/* [root@server~]service named restart [root@server~]host www.baidu.com [root@server~]host 192.168.0.4 [root@server~]host localhost [root@server~]host 127.0.0.1 将解析請求轉發給DNS伺服器：192.168.0.4 Forwarders { 192.168.0.4; }; SLAVE 在DNS（SLAVE）： Vim /var/named/chroot/etc/named.conf 加入：         Type slave;         File “slave/baidu.com.zone”;         Master { 192.168.0.4; };         File “slave/0.168.192.com.zone”; 注意：在伺服器iptables加入： vim /etc/sysconfig/iptables -A RH-Firewall-1-INPUT –p udp –-deport 53 –j ACCEPT ★ [root@client~]vim /etc/resolv.conf Nameserver 192.168.0.1