摘要：
Scope:
Considering the high volume of traffic the Web site uses two or more servers needed to handle user requests. The concept behind the web farm is that a number of different web sites share pooled resources. They typically share a common front-end dispatcher to perform load control and distribute customer requests. They share the multiple web servers themselves. Based on experience and with reference to Microsoft sites this document was created to address certain issues faced in web 阅读全文
摘要：
Taking a big step back, a Web server serves pages for viewing in a Web browser, while an application server provides methods that client applications can call. A little more precisely, you can say that:
A Web server exclusively handles HTTP requests, whereas an application server serves business logic to application programs through any number of protocols.
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