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IIS ( Microsoft Internet Information Services or Server) is a set of Internet based services for Windows machines. Originally supplied as part of the Option Pack for Windows NT, they were subsequently integrated with Windows 2000 and Windows Server 2003). The current (Windows 2003) version is IIS 6.0 and includes servers for FTP, SMTP, NNTP and HTTP/ HTTPS servers are packaged in the bundle. Earlier versions also included a Gopher server.1 Features
The web server itself can not directly perform server side processing but can delegate the task to ISAPI applications on the server. Microsoft provide a number of these including ones for Active Server Pages and ASP.NET. Third parties have provided support for PHP and Perl languages in the same way.
2 Compatibility
Internet Information Services is designed to run on Windows server operating systems. A restricted version that supports one web site and a limited number of connections is also supplied with Windows XP Professional.
3 Security
IIS has been attributed with a number of security exploits, most of which were in fact issues within the lesser used ISAPI filters. With Windows Server 2003 Microsoft finally elected to turn off all ISAPI handlers by default thereby giving the web server a much more secure "out of the box" configuration.
Microsoft has also changed the server account that IIS runs on. On version of IIS before 6.0, all the features were run on the System account, allowing exploits to run wild on the system. Under 6.0 many of the processes have been brought under a Network Services account which has fewer privileges. In particular this means that if there is an exploit on that feature, it wouldn't necessarily compromise the entire system.
4 Competitors
ApacheApache HTTP Server is an open source HTTP web server for Unix platforms ( BSD, Linux, and UNIX systems), Microsoft Windows, and other platforms. The author claims the name was initially chosen as a catchy name in order to be original, but the most widespr is the dominant software in the web and FTP server markets and IIS's main competitor. Solaris Operating EnvironmentThe Solaris Operating Environment (OE) Solaris is a computer operating system, the proprietary Unix variant developed by Sun Microsystems (Solaris is slated to be released under on OSI certified Open-Source license with the release of Solaris 10 by the fi/ J2EE also competes in the enterprise web services arena.
5 External links
InternetThis article is about the Internet the extensive, worldwide computer network available to the public. An internet is a more general term for a set of interconnected computer networks that are connected by internetworking''. WWW information network structu
Web server software
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