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The following server with Nginx version 1.22.1:

server { listen 80; server_name ip; location /getthe/ { set $target_url $arg_url; if ($target_url = "") { return 400 "No target URL specified"; } proxy_pass $target_url; } }

When I enter the site into my browser, http://192.168.4.27/getthe/?url=http://example.com, a "502 bad gateway" page comes up.

Also, when I replace proxy_pass with just http://example.com the reverse proxy works fine.

I tried resetting and reinstalling Nginx, but the issue persists. I expect the URL from the URL parameter to be reverse proxied and displayed to the user.

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  • You'll need to define a resolver for this configuration to work (you can read this post to find out why is it required). If you check the nginx error log, you'll see a clear error message "no resolver defined to resolve example.com..." Commented Nov 24, 2024 at 22:23
  • Ah ok. Thanks!! Commented Nov 24, 2024 at 22:35

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