QuickGuide: NGINX Reverse Proxy with HTTPS

[DerMeldos]

1. Install Nginx
   On Ubuntu/Debian:

sudo apt update
sudo apt install nginx

2. Configure Reverse Proxy
   Create a new file:
   /etc/nginx/sites-available/uptime

server {
    listen 80;
    server_name uptime.ricardoweigel.de;

    location / {
        proxy_pass http://127.0.0.1:3001;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}

Enable the config:

sudo ln -s /etc/nginx/sites-available/uptime /etc/nginx/sites-enabled/
sudo nginx -t
sudo systemctl reload nginx

Now, visiting http://uptime.ricardoweigel.de will show your service running on port 3001 without exposing the port.

3. Add HTTPS with Let's Encrypt
   Use Certbot:

sudo apt install certbot python3-certbot-nginx
sudo certbot --nginx -d uptime.ricardoweigel.de

It will automatically edit your config to redirect HTTP to HTTPS.

Result:
Users go to: https://uptime.ricardoweigel.de
Internally forwarded to: http://127.0.0.1:3001
Clean, professional, and secure.