I feel like I must be missing something obvious... but here goes.
Question
Is it possible to configure an Nginx proxy such that it does not modify the HTTP request URI? How?
Background
I have an Nginx reverse proxy (A) in front of a forward proxy (B).
The configuration at A is a plain vanilla reverse proxy setup that looks something like this:
upstream upstreamproxy { server 192.168.0.69:80; } location / { proxy_set_header Host $http_host; proxy_pass http://upstreamproxy; proxy_redirect off; proxy_buffering off; } The forward proxy B is also plain vanilla, so it's expecting to see proxy requests like this:
GET http://www.example.com/foo HTTP/1.1 User-Agent: curl/7.30.0 Host: www.example.com Accept: */* Proxy-Connection: Keep-Alive The problem is, reverse proxy A rewrites the HTTP request URI as shown:
Issue an example request:
my-client$ curl --proxy http://<proxy-A IP address>:80 http://www.example.com/foo Look at what Proxy A is doing:
proxy-A$ ngrep -W byline tcp and port 80 #### T <my-client IP address>:38038 -> <proxy-A IP address>:80 [AP] GET http://www.example.com/foo HTTP/1.1. User-Agent: curl/7.30.0. Host: www.example.com. Accept: */*. Proxy-Connection: Keep-Alive. . ##### T <proxy-A IP address>:57211 -> 192.168.0.69:80 [AP] GET /foo HTTP/1.0. Host: www.example.com. Connection: close. User-Agent: curl/7.30.0. Accept: */*. Proxy-Connection: Keep-Alive. Note that the request URI was rewritten from http://www.example.com/foo to /foo. That's what I'm trying to avoid.
FWIW, I've tried fiddling around with the uri portion of the proxy_pass URL without success.
