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By srajar ·
what's the difference between
webserver and web applicationserver

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Web server vs. web app server

by richard.delgado In reply to Webservers

The difference is either incredibly major or none at all. It depends on the arcitecture you really need.

First, the differences. A web server is just that: it accepts requests for web pages and returns the requested HTML. Static web sites thatare just simple HTML live quite nicely on a regular web server, since they have no business logic to execute. A web application server is a different beast and would not normally be needed for static web sites. A web app server houses and runs components (usually business rules, database rules, etc.) that are requested from an outside source. That outside source is often a web page request placed by a user. Here's an example: assume you have a web-based order entry system. The user wants tosee all open orders for a particular item. So the user keys the item # into a page and clicks "go". This places a request the a web server which has the page. The page has component calls embedded in it that call the order inquiry component on theweb app server, which passes the data back to the web page, which passes the info back to the user.
A single box could be used as the web and app server (we're doing that now), but scalability issues will arise based on user load. So it's often best to use 2 or more boxes if you expect a high user load.

If I can help you anymore on this, just e-mail me. I'll be glad to help.

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