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-administrators, agents, end users three levels 2. Virtual host management (based on the host name and IP) 3. Multiple top-level domains bind the two domain names unlimited level 4 .DNS management 5.FTP user management