These days shared hosting is being increasingly preferred, it makes use of a control panel system that is web based. Most of the big players in the web hosting market use a customized control panel which they have developed. There can be a huge controversy between web interfaces and control panels because occasionally web hosting companies may sell their control panel user right to a third party. Often companies try to copy the methods of functionality of a control panel which may lead to patent issues and lawsuits. When there is shared hosting the service provider maintains its servers. Installs new software, security updates and provides technical support.