Virtual Private Servers (VPS) Web Hosting
For webmasters who want more control over their website hosting environment, virtual private server or VPS web hosting is a viable option. Very cheap web hosting service offers shared hosting, it has limitations. As one of the servers is probably several hundred websites, some resources such as CPU, disk space and bandwidth is shared with all of the individual hosting account customers. These shared resources are not otherwise necessarily be subject to the sites of small and medium enterprises. An important limitation is the restraint to control the system-level software, such as HTTP server, mail server, etc.
You do not have options like the ability to choose a different operating system, and you can not write programs or do administrative tasks such as spam filters or put a firewall. For most of you, this is not a problem because they do not know how or do not want to do things anyway! Most site owners have no interest or ability to deal with this type of work and are happy to leave the hosting company. Those who want or need more control of the situation on the server or the desire to test the new software but can only achieve this level of management, Virtual Private Server.