Docs: https://docs.nodebb.org/configuring/running/#systemd

Another config: https://devgypsy.com/post/2018-11-10-restarting-nodebb-after-a-crash-and-at-login/

Like this:

server {
  listen [::]:80;
  listen 80;
  server_name javahub.de www.javahub.de;
  return 301 https://javahub.de$request_uri;
}

server {
  listen [::]:443 ssl http2;
  listen 443 ssl http2;
  
  server_name javahub.de;

  client_max_body_size 50M;

  # RSA
  ssl_certificate /etc/letsencrypt/javahub.de/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/javahub.de/private.key;
  # ECDSA
  ssl_certificate /etc/letsencrypt/javahub.de_ecc/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/javahub.de_ecc/private.key;

  location / {
    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;
    proxy_set_header Host $http_host;
    proxy_set_header X-NginX-Proxy true;
    proxy_pass http://127.0.0.1:4567;
    proxy_redirect off;
    # Socket.IO Support
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade"; 
  }

}