使用RHEL5+postfix+webmail+dovecot+mysql+postfixadmin搭建邮件服务器实例 1,DNS vim /var/named/chroot/etc/named.caching-nameserver.conf --- options { listen-on port 53 { any; }; listen-on-v6 port 53 { ::1; }; directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/d