Connect over SSH

Machines have no dedicated public IP; everything is reached through a server-IP:external-port mapping. SSH is no different — map port 22 first.

Open port 22

Machine page → External access → port inside the machine 22, protocol TCP → open. An external port between 20000 and 29999 is assigned.

Connect

• User: every machine uses dev. Root login is disabled; use sudo (no password) when you need root.
• Authentication: SSH keys only, no passwords. If your private key isn’t in the default location, add -i path/to/key.

ssh -p 20001 dev@203.0.113.10

Add it to ~/.ssh/config

Host my-box
    HostName 203.0.113.10
    Port 20001
    User dev
    IdentityFile ~/.ssh/id_ed25519
    ServerAliveInterval 30

Then just ssh my-box. With the VS Code Remote-SSH extension, pick my-box to develop on the cloud machine.

Suspended machines

If the machine is suspended, the first connection takes about 10 seconds while we wake it in the background. That’s normal — don’t hit Ctrl-C.

Change your SSH key

The machine page has Change SSH public key. If you’ve lost your private key and haven’t replaced it yet, you can temporarily use the web terminal.