Httpd – Apache mod_proxy: redirection based on http header

apache-2.4httphttpdmod-proxy

I was wondering if it is possible to direct http traffic to a specific back end server, based on an http request header value. The 'referer' http header value for exemple.

I have 2 server instances. One for UAT (tests) and one for pre-production use. I would like to have an Apache reverse proxy in front of these 2 server instances. And when an http request comes, based on the 'referer' http header (uat or pre-prod) value I would like my reverse proxy to direct the request to the correct back end server instance.

Is this possible?

Thanks

Best Answer

Yes, it is possible.

Make a rewrite rule based on a conditional check of the REFERER header.

RewriteCond documentation

%{HTTP:header}, where header can be any HTTP MIME-header name, can always be used to obtain the value of a header sent in the HTTP request. Example: %{HTTP:Proxy-Connection} is the value of the HTTP header ``Proxy-Connection:''.

RewriteCond %{HTTP:Referer} =="xyz.com/abcd"
RewriteRule .* https://%{SERVER_NAME}%{REQUEST_URI} [R=301,L]

Related Solutions

How to configure mod_proxy to ProxyPass based on http vs https

You need to do this via two independent <VirtualHost *:X> directives. Your HTTP directives go inside <VirtualHost *:80> while your HTTPS directives go inside <VirtualHost *:443>. Adjust as required if your server has multiple Address Based or Name Based virtual hosts configured. See the Apache 2 documentation for full details.

Changing a Set-Cookie header using mod_rewrite/mod_proxy

DO NOT DO THIS, this could be a major security hole

The following works for me:

<Location />
    Header edit Set-Cookie "Secure;" ""
    Order allow,deny
    Allow from all
</Location>

I have not tested how it handles multiple cookies, so that might not work.

Best Answer

Related Solutions

How to configure mod_proxy to ProxyPass based on http vs https

Changing a Set-Cookie header using mod_rewrite/mod_proxy

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