How to configure nginx as a reverse proxy

Install Nginx

sudo apt install nginx -y

unlink default config file

sudo unlink /etc/nginx/sites-enabled/default

create new config file

sudo vim /etc/nginx/sites-available/reverse-proxy

server {
    listen 80;
    server_name localhost;
    location / {
        proxy_pass http://127.0.0.1:8000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

link and activate the new config file

sudo ln -s /etc/nginx/sites-available/reverse-proxy /etc/nginx/sites-enabled/

test and restart

sudo nginx -t
sudo systemctl restart nginx

Configure firewall

sudo ufw allow 'Nginx Full'