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From "Joshua Slive" <>
Subject Re: [users@httpd] Proxying ssl environment info
Date Fri, 28 Jul 2006 22:16:34 GMT
On 7/28/06, snacktime <> wrote:
> This is with apache 1.3.x.  Running apache 2 isn't an option due to
> some web applications using older versions of mod perl.
> I want to use apache to proxy ssl connections to a backend plain http
> server.  The backend server is mongrel (
> which is used to run ruby on rails web apps.  Apache would be
> configured to require ssl client certificates issued by our ca.  What
> I want is to somehow pass the mod_ssl environment variables to mongrel
> when the request is proxied.  I've tried using mod_rewrite, and while
> it handles the proxying just fine it's not passing the ssl
> environment.  This is the configuration that isn't working for me.
> I've also tried setting an arbitrary test environment variable
> ([E=TESTVAR:test,P]) without any luck.
> RewriteRule ^/xml/(.*) http://localhost:88/xml/$1

Environment variables are local to an apache instance.  They cannot be
directly passed over HTTP requests.  You need to use something that
can be passed over HTTP requests to transmit the info.  Some examples:
- Query string
- Cookies
- Other arbitrary request headers.

All of those can be set in version 2.2 with mod_rewrite and
mod_headers.  The only one that I know will work in 1.3 is the query
string.  But you'll need to be careful not to mess up other uses of
the query string by your applications.


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