tailieunhanh - Professional ASP.NET 3.5 in C# and Visual Basic Part 61

Professional in C# and Visual Basic Part 61. Building on the revolutionary release, adds several key new developer features including AJAX, LINQ, and a new CSS designer in Visual Web Developer 2008. The dramatic reduction in code that developers realized from the more than 50 new server controls in now allows developers the time to make their applications more interactive with AJAX, to work with data in their preferred language with LINQ, and to build visually attractive and consistent standards-based sites with CSS. . | IIS7 Internet Information Services IIS7 is the latest version of Microsoft s Web Server. IIS7 has gone through significant architectural changes since the last version. The most notable change for developers is the deep integration of IIS7 and the Framework. This provides both developers and IIS7 administrators with an integrated programming environment that allows them to implement features and functionalities that were not possible before. This chapter will provide you with an overview of the IIS7 and integrated architecture and its constituent components show you how to install setup and configure IIS7 as well as show you how to migrate your existing applications to IIS7. Modular Architecture of IIS7 The main goal of the Microsoft IIS team for IIS was to improve its security performance and reliability. For that reason modularity and extensibility didn t make it to the list of top priorities. That said IIS introduced a very important notion selective disabling of features such as ISAPI extensions and standard CGI Common Gateway Interface components. One of the main problems with the earlier versions of IIS was that every feature had to be installed and enabled. There were no ways to disable specific features not needed by your application scenario. IIS enables only static file serving by default on a clean install of the Web server. In other words dynamic features such as ISAPI extensions and CGI components are disabled by default unless the administrator explicitly enables them. Such customization of the Web server allows you to decrease the attack surface of your Web server giving attackers fewer opportunities for attacks. Disabling unwanted features was the first step toward making the IIS customizable. However this step didn t go far enough because IIS still installs everything which introduces the following problems Disabled features consume server resources such as memory and therefore increase the Web .

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