Shared hosting services typically offer basic web statistics support, email and webmail services, auto script installations, updated PHP and MySQL, and basic after-sale technical support that is included with a monthly subscription.
Most of the large hosting companies use their custom-developed control panel or cPanel.
Attempting to recreate the functionality of a specific control panel is common, which leads to many lawsuits over patent infringement.
Most servers are based on the Linux operating system (OS) and LAMP.
[citation needed] They range from "mom-and-pop shops" and small design firms to multimillion-dollar providers with hundreds of thousands of customers.
The web server software uses the IP address the client connects to, to determine which website to show the user.