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Every machine gets a unique public IPv4 address. SSH directly into it: 
ssh root@5.135.42.17
You land in a shell as the boxd user (the SSH username is ignored for authentication — only your public key matters).

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How it works

When you SSH to a machine’s public IP, the boxd proxy:
  1. Reads your SSH public key
  2. Verifies you own the machine at that IP
  3. Opens a session to the machine on your behalf
All standard SSH features work through the proxy:
  • SCP — copy files to/from the machine
  • Port forwarding — tunnel ports through SSH
  • VS Code Remote SSH — develop remotely
  • rsync — sync files over SSH

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When to use direct SSH

MethodBest for
HTTPS (name.boxd.sh)Serving web traffic
Control plane (ssh boxd.sh exec ...)Automation, running commands remotely
Direct SSH (ssh root@ip)Interactive development, file transfer, port forwarding

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Finding your machine’s IP

ssh boxd.sh list

name    status   ip          image
myapp   running  5.135.42.17 default
With JSON output: 
ssh boxd.sh list --json
Direct SSH only works for the machine owner. Your SSH key must match the key registered to the account that created the machine.