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As a learning exercise in order to understand more about reverse proxy. I decided to use my private cloud server as a reverse proxy server and try to bypass corporate firewall (when I am at work) to allow myself to access gmail.

I have came up with the following Proxy configuration (please dont mind the square brackets):

 SSLProxyEngine on ProxyRequests Off ProxyVia Off [Proxy *] Order deny,allow Deny from all Allow from xxx.xxx.xxx [/Proxy] ProxyPreserveHost On ProxyPass /qqq https://www.google.com/accounts/ServiceLogin?service=mail ProxyPassReverse /qqq https://www.google.com/accounts/ServiceLogin?service=mail ProxyPass /qqqqq http://mail.google.com/mail ProxyPassReverse /qqqqq http://mail.google.com/mail

The outcomes of the above configuration as follows:

  1. When I navigate to myserver.com/qqq, the backend server (Google) simply changes URL and redirects me to google.com. Although I have "ProxyPreserveHost On"

  2. When I navigate to myserver.com/qqqqq, Google does 301 back to my proxy server, which redirects me again to Google and I end up in the loop.

I have read a number of posts here at stackoverflow, but could not extract any helpful info from them:

https://stackoverflow.com/questions/5277107/apache-reverse-proxy-changes-url

https://stackoverflow.com/questions/6385638/proxy-pass-follow-redirect-on-server

https://stackoverflow.com/questions/1144286/how-to-tell-apache-in-reverse-proxy-mode-to-intercept-or-trap-302-responses-fro

My questions here are:

  1. How to prevent Google from changing the URL, and instead transparently display content

  2. What can I do in order not end up in 301 loop between my proxy server and Google

If you think I have missed/omitted/misunderstand something, please do let me know

Thank you, Alex

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  • Probably accounts.google.com sets a cookie (you're logged in), redirects you to mail.google.com, which can't see the cookie and redirects you back to the login page Commented Oct 21, 2016 at 7:48

1 Answer 1

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I have done that by the following code. You can try it...

 ProxyPreserveHost On <Proxy *> AddDefaultCharset off Order deny,allow Deny from all Allow from all </Proxy> ProxyPass /google http://www.google.com/ ProxyHTMLURLMap http://www.google.com /google <Location /google> ProxyPassReverse / ProxyHTMLInterp On ProxyHTMLURLMap / /google RequestHeader unset Accept-Encoding </Location>
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