proxy question

[Allen Ahoffman <ahoffman@announce.com>]

is this easy or hard to do.

I want to set up a proxy server that takes incoming requests distributes
them to back end web servers, who then respond directly to the client not
thru the proxy.
e.g.
imcoing http request to proxy
	proxy to web server
	web server to originator of request not thru proxy

thanks