microHOWTO: Configure Apache as a reverse proxy
Use the ProxyPass directive to map the required local path to the corresponding remote URL
The ProxyPass directive creates a mapping from a path within the local web site to a given remote URL. In this instance the local path is /internal and it should be mapped to http://internal.example.com/public. There are two ways in which this can be expressed. ProxyPass has a two-argument form, where both local path and remote URL are specified explicitly:
ProxyPass /internal http://internal.example.com/public
It also has a single-argument form, where the local path is implied by the context:
<Location /internal> ProxyPass http://internal.example.com/public </Location>
The effect is the same either way. The mapping applies to any
location within the subtree rooted at the given path, so (for example)
the configuration above would cause /internal/logo.png to be mapped to http://internal.example.com/public/logo.png. Trailing slash characters are significant:
- If the slash is included then only the content of the specified directory is mapped, not the directory itself.
- Without the slash, both directory and content are mapped.
For this reason, the path and the URL should either both end with a slash or both end without one.
http://www.microhowto.info/howto/configure_apache_as_a_reverse_proxy.html
