mod_annot editor

The Complete Configuration

We are now in a position to write a complete configuration for our reverse proxy. Here is a bare minimum, that ignores extended urlmapping:

LoadModule proxy_module      modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule headers_module    modules/mod_headers.so
LoadFile   /usr/lib/libxml2.so
LoadModule proxy_html_module modules/mod_proxy_html.so

ProxyRequests off
ProxyPass /app1/ http://internal1.example.com/
ProxyPass /app2/ http://internal2.example.com/
ProxyHTMLURLMap http://internal1.example.com /app1
ProxyHTMLURLMap http://internal2.example.com /app2

<Location /app1/>
        ProxyPassReverse /
        SetOutputFilter  proxy-html
        ProxyHTMLURLMap  /      /app1/
        ProxyHTMLURLMap  /app1  /app1
        RequestHeader    unset  Accept-Encoding
</Location>

<Location /app2/>
        ProxyPassReverse /
        SetOutputFilter proxy-html
        ProxyHTMLURLMap /       /app2/
        ProxyHTMLURLMap /app2   /app2
        RequestHeader   unset   Accept-Encoding
</Location>

Of course, there's more than one way to do it. Our configuration would actually have been simpler if we'd used Virtual Hosts for each application server. But that takes you beyond the realm of Apache configuration and into DNS. If you don't fully understand that (or if you think "why can't I see my domain" is a webserver question), then please don't try using virtual hosts for this.