Need advice for Web Server architecture

Hi,
I am currently working on the web server implementation for a aircraft-based LAN network. Not developing Web applications myself, I am supposed to provide to the app developpers a web server accepting the greatest possible scope of web technologies.
The choice I have to make (imposed by the client) is, based on a RedHat Linux OS, between a Tomcat 4.1.18 standalone Web server and an Apache 2.0.44 HTTP server with a Tomcat module to allow for JSP/servlet technologies. To add some complexity, Tomcat will come as part of Sun's J2EE App server.
My questions are:
-What would be the advantage of having an Apache HTTP Server, i.e what does an Apache HTTP Server provide that a Tomcat standalone doesn't?
-I know (from a previous post) that it is possible to have Tomcat as an Apache module for user-transparency, but does anyone know if it is possible when Tomcat comes embeded in J2EE?
Thank you in advance
pikollAsked:
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BigRatCommented:
Apache is a web server. It serves up data for the web, like html pages, jpegs, scripts, stylesheets and so on.

TomCat is an application server (better said Framework since it itself does not do application processing but supports those things plugged into it like JavaBeans). It normally recieves a request from a web server, executes an application specific function, and returns data back through Apache to the browser.

"..that it is possible to have Tomcat as an Apache module for user-transparency."

Don't understand. An Apache module is something which gets loaded into an Apache process at start up, not every time it is required. Saves time. The Apache TomCat module (aka JServ and a host of other names) takes an http request, encodes it, and connects to the TomCat server. It passes the request data, and receives the processed data from TomCat. It passes this onto Apache (who passes it to the browser) and closes the connection*


HTH

*simplistic explaination. There are a whole host of things which take place in order to optimise the process.
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Apache Web Server

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