Abstract With the increased use of DNS anycast, load balancing, and other mechanisms allowing more than one DNS name server to share a single IP address, it is sometimes difficult to tell which of a pool of name servers has answered a particu

强大而成熟且开源的虚拟主机管理系统VHCS。其主要功能包括： 1.多级管理：分管理员，代理商，最终用户三个级别 2.虚拟主机管理（基于主机名和基于IP） 3.多个顶级域名绑定，无限级二级域名 4.DNS管理 5.FTP用户管理-Strong and mature and open-source virtual host management system VHCS. Its main features include: 1. Multi-level management: sub-adminis