The term overselling refers to offering system resources to clients without having the capacity to provide them. In simple words, an Internet hosting service provider could advertise a solution with unlimited disk space when, in truth, the customer's account will be generated on a server with various other accounts sharing the total space. To guarantee that all customers have their share, companies often set hidden quotas for each and every account and basically trick their customers about the resources they can get. The main reason to oversell is to find new customers despite the fact that providers know that a web server can have only so many hard disks. Resellers commonly get plans with limited system resources as well, therefore they are unable to provide the unlimited plans they advertise.