Nginx Reverse Proxy Setup

This is a short digest of stuff I found online and my own experiences with setting up a reverse proxy dealing with static routing from my local DNS Server. It was strikingly simple to get running (but some trial and error was needed to make it work as I wanted to). Might be I’ll update this one as I go.

On Archlinux Server

Install nginx:
```
sudo pacman -S nginx
```

Make your /etc/nginx/nginx.conf look like this:

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worker_processes auto;

events {
    worker_connections 1024;
}

http {
    include mime.types;
    default_type application/octet-stream;
    sendfile on;
    keepalive_timeout 65;
    client_max_body_size 1G;

    server {
        server_name sub.domain.tld;

        location / {
            proxy_pass http://192.168.1.3:3000;
        }
    }

}

The above is more or less just a stripped-down version of the default configuration. The important changes I made was using the proxy_pass keyword to redirect the request to the correct server and service port (note URL).

I also set client_max_body_size to 1G (one gigabyte) because the service I run typically needs to up/download files larger than your typical index.html.

Start nginx with soystemd:

sudo nginx -t -c /etc/nginx/nginx.conf # Fix any errors reported here
sudo systemctl enable --now nginx
sudo systemctl status nginx # Ensure everything's fine