WINDOWS2003 Campus Web Server FAQ

Currently, there are more and more schools using Windows Http://www.aliyun.com/zixun/aggregation/19058.html ">2003" as Web servers, but for Windows 2000/ NT users may encounter many unexpected problems if they want to set up a complete, secure, reliable Windows 2003 server. Based on the experience of the two years of hands-on practice, the author focuses on the characteristics of Web services used more often in schools, combined with the difference between Windows 2000.

1. IIS 5. 0 Isolation mode

IIS 5.0 isolation mode manages application processes in a manner similar to the process management in IIS 5.0: All in-process applications run within Inetinfo.exe, and out-of-process applications run in separate DLL hosts.

2. IIS 6. 0 Worker process isolation mode

When configured to execute in worker process isolation mode, all application code runs in an isolated environment. This design eliminates some of the existing bottlenecks. Worker process isolation mode allows administrators to isolate any content (from a single WEB application to multiple sites) into separate worker processes.

Windows 2003 supports both operating modes, and the default is the ISS 6.0 worker process isolation mode. Worker process isolation mode prevents one application or site from stopping and affects another application or site, greatly enhancing the reliability of IIS. So how do you set up two modes of work?

Start IIS Manager, right-click the Web site, select Properties, and open the Properties dialog box (Figure 1). In IIS 6.0 worker process isolation mode, all application code runs in an isolated environment, how are they isolated? Windows 2003 has new application pools, and worker process isolation mode allows customers to create multiple application pools, each of which can have different configurations. Performance and reliability are enhanced because these application pools receive their requests directly from the kernel rather than the WWW service. To isolate Web applications running on the same computer but belonging to different Web sites, you need to create a separate application pool for each Web site.

Figure 1 Opening the IIS Properties dialog box

So what is an application pool? This is a completely new concept of Microsoft: An application pool is a configuration that links one or more applications to one or more worker process collections. Because applications in an application pool are separated from other applications by the worker process boundaries, applications in one application pool are not affected by problems with applications in other application pools.

3. Creating an application pool

In IIS Manager, open the local computer, right-click Application pool, and choose New application pool (you must be in worker process isolation mode to establish an application pool). Application Pool Name box, enter a new application pool name. If the ID that appears in the Application pool ID box (such as: AppPool #1) is not what you want, you can rename it. If you clicked use an existing application pool as a template, right-click the application pool you want to use as a template in the Application pool name box. Finally click OK.

4. Assigning Application Pools

In IIS Manager, right-click the application for which you want to assign an application pool, and then click Properties. Click the Home Directory tab to confirm that the application name of the directory or virtual directory you are assigning is filled in. If the Application Name box has not been filled in, click Create, and then enter a name.

In the Application Pool list box, select the name of the application pool that you want to assign to it. Finally click OK (Figure 2).

Figure 2 Newly created application pool name