Forcing proxy-throughput

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Hi,

Please, I would like to know how can I rewrite and force proxy with
nginx.

For example:

server-nginx → IIS-server (CMS)

Web URL: Custom Application Development Software for Business - Salesforce.com

    • rewrite and force proxy to IIS-server

Inside CMS: Custom Application Development Software for Business - Salesforce.com

With apache, I’m using Rewrite with [P] flag:

RewriteRule ^/([_a-zA-Z0-9-+]+)/([a-zA-Z0-9-+,]+)/([0-9]+).html$
http://www.intranet.com.br/$1\.asp?cod=$3 [P]

But, would be nice do that with nginx. I asked in #IRC, people says to
use try_files, but I’m not sure about this trick. Is there a way ?

thank you guys

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