With the continuous development of modern social technology, the technology of our various industries is also improving synchronously. The Internet has its presence in enterprises and restaurants. Presumably, we have all heard of "website space" in our lives. To put it bluntly, we divide a server running on the Internet into several "virtual" servers. Each virtual host has an independent domain name and a complete Internet server (supporting WWW, FTP, E-mail, etc.) Now, with the gradual diversification of people's lives, the scientific and technological elements in everyone's life are also increasing. At this time, the virtual host has played an important role and brought a lot of convenience to our life. Allocate a certain amount of disk space on the network server for users to place sites, application components, etc. It also provides necessary site functions, data storage and transmission functions. Let more people interfere with each other and make better use of resources. Users of different virtual hosts on the server can manage themselves during use. However, another important point to grasp is that a server host can only support a certain number of virtual hosts. When the number exceeds this number, the user will feel that the performance drops sharply, leading to a decline in the effectiveness of the user in the use process. Virtual host has a wide range of uses, which can provide data storage functions for small and medium-sized enterprises, and can also become an e-commerce platform. Now the Internet is becoming more and more popular. Every company has its own official website. The use of everyone makes the entire Internet colorful. Therefore, virtual hosts are very suitable for SMEs and small portals to save money and resources.