Lệnh cài Cloudflare tunnel
curl -L --output cloudflared.deb https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-amd64.deb &&
sudo dpkg -i cloudflared.debcurl -L --output cloudflared.deb https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-amd64.deb &&
sudo dpkg -i cloudflared.deb