Install Nginx for web access and webSocket control

bash

sudo apt-get update
sudo apt-get install -y nginx
systemctl status nginx --no-pager

Create your web folder and index.html

bash

sudo mkdir -p /var/www/OpenKAI

sudo tee /var/www/OpenKAI/index.html > /dev/null <<'EOF'
<!doctype html>
<html>
  <head><meta charset="utf-8"><title>OpenKAI web console setup</title></head>
  <body><h1>Nginx is serving this page ✅</h1></body>
</html>
EOF

sudo chown -R www-data:www-data /var/www/OpenKAI
sudo chmod -R 755 /var/www/OpenKAI

Configure an Nginx site for that folder Create a site config:

bash

sudo nano /etc/nginx/sites-available/OpenKAI

Paste this:

nginx

server {
    listen 80;
    listen [::]:80;

    server_name _;

    root /var/www/OpenKAI;
    index index.html;

    location / {
        try_files $uri $uri/ =404;
    }
}

Enable it and reload Nginx:

bash

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

(Optional) Disable the default site if you want:

bash

sudo rm -f /etc/nginx/sites-enabled/default
sudo nginx -t
sudo systemctl reload nginx

Allow HTTP through the Ubuntu firewall (important)

If UFW is enabled:

bash

sudo ufw status

If it says “active”, allow Nginx:

bash

sudo ufw allow 'Nginx Full'

(Or minimum HTTP only:)

bash

sudo ufw allow 80/tcp

Open from browser to confirm NginX is serving the html correctly. Ctrl + F5 for refresh caching.

Install Nginx for web access and webSocket control ​

Install Nginx for web access and webSocket control