Nginx proxy_pass ntlm authorization

Question

proxy_pass   http://myserver;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forward-For $proxy_add_x_forwarded_for;

Above is my nginx configuration, and myserver requires NTLM authentication. I access myserver through nginx proxy and provide correct auth info,but the browser prompt auth again.

Any wrong with my configuration?

EIDT: Referred to this ,I use stream proxy and problem solved!

Thanks to @Tarun Lalwani

See if this https://serverfault.com/questions/754351/what-is-a-correct-ways-to-allow-login-to-an-iis-site-through-a-reverse-proxy or https://stackoverflow.com/questions/21284935/nginx-reverse-proxy-with-windows-authentication-that-uses-ntlm helps? — Tarun Lalwani, Oct 20 '17 at 04:28
@Tarun Lalwani Great! I solved my problem using stream proxy. Thanks a lot! — BuggyShow, Oct 20 '17 at 05:59

score 1 · Answer 1 · answered Nov 20 '20 at 21:48

According to nginx documentation:

Allows proxying requests with NTLM Authentication. The upstream connection is bound to the client connection once the client sends a request with the “Authorization” header field value starting with “Negotiate” or “NTLM”. Further client requests will be proxied through the same upstream connection, keeping the authentication context.

upstream http_backend {
    server 127.0.0.1:8080;

    ntlm;
}

The "ntlm" option is available only for Nginx Plus.
I created a custom module that is able to provide a similar functionality

gabihodoroaga/nginx-ntlm-module

There is also a blog post about this at hodo.dev

Nginx proxy_pass ntlm authorization

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