Network Firewall By default, we only open the ports necessary for the application you have deployed.  How can I restrict access to my service by IP address? From the Dashboard, select " Security" , then " Show Settings" on the Firewall row From there you can modify, remove, or add new rules to open a port from your service to the internet (or just to a specific target IP). All services come preconfigured with firewall rules that match the software you are deploying. You have to keep port 80 open to any ipv4/ipv6 or else Letsencrypt won't be able to generate an SSL certificate. Here is a compilation of the ports necessary for Elestio Automation: Mandatory Application Protocol Port  Usage   ✔️ Input  TCP 22 Automation SSH ❌ Input  UDP 4242 Nebula/ Global IP ❌ Input  TCP 18345 VS Code ❌ Input  TCP 18374 Open Terminal ❌ Input  TCP 18346 File Explorer ❌ Input TCP 18445 Tail Logs ❌ Input  TCP 18344 Terminal ❌ => Ports are necessary only if you are utilizing specific tools and activating global private IP functionality.