Configuring Apache to redirect to multiple HTTP services on the local machine

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For a simple server, such as a living-room Internet server, it is often desirable to run multiple HTTP services on the one machine. In my case, the web server is Apache, and I want to different parts of my site (goverend by path) processed by different HTTP services (Apache, Tomcat, IIS).

For Apache 1.3.27, uncomment these lines:

AddModule mod_rewrite.c
AddModule mod_proxy.c
LoadModule rewrite_module modules/
LoadModule proxy_module modules/

Later, either within a virtual host entry or the main host entry, add your re-writing logic.

<IfModule mod_rewrite.c>
	RewriteEngine on
	RewriteLog "logs/rewrite_log"
	RewriteLogLevel 0
	RewriteRule ^/gallery(.*)$1 [P]
	RewriteRule ^/aspx(.*)$1 [P, L]

This redirects all traffic matching /gallery to a Tomcat web-app 'gallery', where Tomcat is running on port 8080. Similarly, any requests matching /aspx are redirected to IIS, which runs on port 8090.

With this setup, both Tomcat and Apache run on ports which are blocked by the firewall.