Hi, I started experimenting the HTTP GEO Module and Memcached Module from nginx, and have two questions:

1. HTTP GEO Module

in the http configuration, i added something like this to detect the IP address of the client and store the country code in the $geo variable.

geo $geo { default US; 127.0.0.1/32 US; 10.1.0.0/16 UK; ...... }

But the question is how I can transfer the variable to the backend Apache server and let the PHP script know about the $geo variable. I understand that for fastcgi you can get $geo as a parameter, just like this:

fastcgi_param GEO $geo;

However, for reverse_proxy to Apache, how can I pass the $geo variable on to the Apache server and eventually the PHP script?

2. Memcached Module

Using 0.5.9 version, I have succeeded in making the memcache module query and fetch the key value stored in Memcached.

For example, if I set the key value in memcached in text format as "whatever", nginx can query and get the value and feed it back to the client browser. However, the question is: even if the text is valid HTML, the browser still thinks it is data, not web pages, so it offers me to download. I guess I need to set extra headers before the HTML in order to make it work, but I cannot find any information on this.