Nginx's reverse proxy example

nginx-reverse-proxy-example

server {
    listen 80;
    listen [::]:80 ipv6only=on;

    server_name example.com www.example.com;
    access_log /var/log/nginx/server.access.log;
    error_log /var/log/nginx/server.error.log;

    location / {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_pass http://localhost:3000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
    }
}