Ports

While Claude Code or Codex is building a web app on your server, you'll often want to actually see it — the dev server on :3000, the API on :8080, a Storybook, a docs preview. Ports lists every port your server is listening on and opens any of them over HTTP in an in-app browser, tunneled through your existing SSH connection.

No extra setup

Traffic is forwarded through SSH, so the port does not need to be exposed to the internet — services bound to the server's localhost work too. No firewall changes, no reverse proxies.

Where to Find It

  • Server detail page — tap Ports in the Tools section (next to Terminal and VNC).
  • Terminal session page — open the top-right menu (⋯) and tap Ports. This reuses the session's connection, so the list opens instantly while the agent keeps working.

Opening a Port

1

The Port Access sheet lists every TCP port currently listening on the host, with the owning process name and bind address where available.

2

Tap a port. ServerCC sets up an SSH local forward on a dedicated connection and opens the page in an in-app browser.

The In-App Browser

  • Back / Forward — Full navigation with buttons and edge-swipe gestures
  • Desktop Site — Switch the Page View between Mobile Site and Desktop Site to test both layouts
  • Orientation — Temporarily unlock Landscape for wide layouts, even though the app itself is portrait-only
  • Reload — Pull the latest build output after the agent makes changes

Good to Know

  • HTTP only — the tunnel always loads http://. Point it at plain-HTTP dev servers; HTTPS-only services aren't supported.
  • One tunnel is active at a time — opening another port closes the previous one.
  • Port forwarding runs on its own SSH connection, isolated from the terminal — heavy page loads can't stall your Claude Code/Codex session.
  • If nothing is listening, you'll see No Accessible Ports — start your dev server first, then pull to refresh.

See also: VNC Remote Desktop for viewing a full desktop instead of a single web page, and Terminal for the session the preview usually accompanies.