IIS (Internet Information Services, prior to version 5.1 - Internet Information Server) is a proprietary set of servers for several Internet services from Microsoft. IIS is distributed with the operating systems of the Windows NT family.

The main component of IIS is a web server that allows you to host websites on the Internet. IIS supports HTTP, HTTPS, FTP, POP3, SMTP, NNTP protocols.

The Web server (IIS) role in Windows Server provides a secure, easy-to-manage, modular and extensible platform for securely hosting Web sites, services, and applications. Using the Web server IIS 8 provides access to information for users on the Internet, intranet and extranet. Automating the user interface also allows automatic test scripts to interact with the UI.

The following list shows only some of the benefits that the use of IIS.

  • Maximize the level of web security by reducing the server volume and automatically isolating applications.
  • Easily deploy and run ASP.NET, Classic ASP and PHP web applications on a single server.
  • Application isolation by unique identification of work processes and their launch in an isolated environment by default, further reducing security risks.
  • Easily add, remove and even replace embedded IIS components with customizable modules that meet the user's needs.
  • Increase the speed of the website using built-in dynamic caching and advanced compression. 

Administrators can use the Web Server (IIS) role to configure and manage multiple Web sites, Web applications, and FTP sites. The number of special features includes the following.

  • Use IIS Manager to configure IIS components and administer Web sites.
  • Use the FTP protocol to allow website owners to send and download files.
  • Use the isolation of websites to prevent the impact of one website on your server on others.
  • Configure web applications developed using various technologies, such as Classic ASP, ASP.NET and PHP.
  • Use Windows PowerShell to automatically manage most of the administration tasks for the Web server.
  • Combine multiple Web servers into a server farm that you can manage using IIS.
  • Using the advantages of NUMA equipment and ensuring optimal performance of a server with NUMA architecture.