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Since the late 1990s, the need for small businesses to house mission-critical data have forced web hosting vendors to deliver more sophisticated and flexible hosting solutions. One of the alternatives to the more shared hosting model is virtual private servers or VPS. VPS is a concept that is fairly unique in that it operates a virtual server within another server. Each VPS operates in a manner similar to a dedicate server but share the same hardware.
Web and software vendors were quick to identify the cost savings in this hosting model, and companies like SW-soft and Ensim Corp created software that made this possible.
For companies with their own data center facilities, this was simply a godsend in the ability to save space. VPS has the possible to not only control resources like an independent server but also run differing operating systems under the same roof (or hardware in this case).
The technology offered greater benefits to not only the web host, but also the client in terms of performance and security. Each VPS has its own files system, disk space and other resources isolated from other VPS running under the one system. The performance and functional isolation offer great benefits for small businesses that are guaranteed allocated resources that other VPS may not have. Thus, even if one VPS fails, the others do have end up with the same fate, as you would do in a shared hosting environment.
With the cost of a VPS typically below the price of a dedicated server and above shared hosting, it is an appealing compromise for the end user.
Small businesses with e-commerce operations will also appreciate the security in hosting and protecting their own shopping cart and secure socket layer (SSL) certificates. In addition, due to the functional isolation, users can install any software of their choice without making requests or prior authorization from the web hosting company.
With the good also comes the bad for web hosts. VPS is a technology that is becoming far more recognized then some are willing to admit. In that, it is beginning to overstep into markets where dedicated and managed server hosting have traditional dominated. VPS has lower profit margins and allows smaller web hosting vendors to enter and compete in the mid-to-high end market, which is already very competitive.
Virtual private servers have the potential to blur the gap between shared hosting and dedicated servers. One of the issues with VPS compared to the shared hosting model is the additional administration effort required to ensure safe and secure operation as opposed to responsible being placed upon the web hosting vendor. However, dedicated servers may be out of the reach of some small businesses in terms of their high costs, and may find it hard to justify the investment.
VPS has no doubt its benefits but consider it well as all freedoms come at a cost.
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