Can't get Nginx reverse proxy to work
reddit / selfhosted

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SEND_NUKES_PLS · 2023-10-11 21:59

I'm running a VPS on Oracle
My domain is managed by Cloudflare

I installed nginx reverse proxy in a Docker container with the
following ports:

    180:80
    181:81
    1443:443

I port forwarded ports 180 and 1443, and I get the following message
when going to PublicIP:180

    Congratulations!
    You've successfully started the Nginx Proxy Manager.

    If you're seeing this site then you're trying to access a host
that isn't set up yet.

    Log in to the Admin panel to get started.

I installed an nginx server to serve as the test container, and I've
added both the nginx reverse proxy and the nginx server to the same
network in Docker.

I get the following when accessing the nginx server
([http://10.11.0.1:7676](http://10.11.0.1:7676)) via the said network:

    Welcome to nginx!
    If you see this page, the nginx web server is successfully
installed and working. Further configuration is required.

    For online documentation and support please refer to nginx.org.
    Commercial support is available at nginx.com.

    Thank you for using nginx.

In Cloudflare, I set 3 A records, all of them unproxied:

    mydomain.com         to     MyPublicIP
    www                  to     MyPublicIP
    test.mydomain.com    to     MyPublicIP

When I ping [mydomain.com](https://mydomain.com), I can see my public
IP.

​

In NPM, I have the following settings:

    Domain Name: test.mydomain.com
    Scheme: http
    Forward Hostname: 10.11.0.1
    Forward Port: 7676
    Block Common Exploits: True

When I try visiting
[http://test.mydomain.com](http://test.mydomain.com) from multiple
browsers and 2 different networks, I get nothing.

Also, I tried getting an SSL certificate but was met with an error,
and now it looks like I've hit the hourly limit on that...so I'm at
least trying to get http working while I wait.

​

This is my first time trying NPM out, what am I missing? Help!

Thanks!

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4x4Anarchy · 2023-10-11 23:30

The docs are pretty straightforward

[https://docs.nginx.com/nginx/admin-guide/web-server/reverse-
proxy/](https://docs.nginx.com/nginx/admin-guide/web-server/reverse-
proxy/)

​

Here's a barebones of what my nginx.conf looks like to do a reverse
proxy


    worker_processes 1;
error_log nginx_error.log;

events {
  worker_connections 1024;
}

http {
  server {
    server_name mydomain.com www.mydomain.com;
    location / {
      proxy_pass http://localhost:9000;
    }
      listen 80;
    }

​

but if you're running nginx inside a docker container you also need to
expose the port in the container with `-p` flag. So your run command
is something like `docker run ... -p 80:80`

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thekrautboy · 2023-10-12 00:03

> Forward Hostname: 10.11.0.1

> Forward Port: 7676

Since you mention that both NPM and nginx are in the same Docker
network, you need to point NPM to the internal port of nginx. Not the
mapped port which is only for the Docker host machine. I would assume
your default internal nginx port is 80 and you map that for manual
access to 7676. But NPM needs to be pointed at the 80.

Very basic reverse proxy and Docker network stuff. Btw, /r/Docker and
/r/NginxProxyManager both exist.