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Choose Connect my device in the Add Node wizard when your server already accepts SSH logins and you prefer not to paste a command yourself. Techstack signs in with the details below, runs the same setup as the pairing command, and waits for the server’s Guard to register.

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Host or IP address

Enter the address Techstack uses to reach the server in Node host or IP, for example 192.168.1.20 or server.example.com. The address must be reachable from where Techstack runs. A home address like 192.168.1.20 works when Techstack runs in the same network, for example the Windows Alpha on a computer at home. If Techstack cannot reach the server this way, use the pairing command instead: the server then connects outward on its own.

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SSH key or password

Under Authentication, choose how Techstack signs in:
  • SSH key. Techstack uses a private key you saved in your Wallet.
  • Password. Techstack uses the SSH password of the user you enter.
When you choose a password, the wizard keeps it only in the browser’s memory while you move to the next page. It is not written to the browser’s session storage, so if you reload the page before setup starts, enter the password again. Techstack then saves the password encrypted in your Wallet for this StackKit, so it can retry the setup. It is not stored as plain text in the StackKit configuration or in job reports.

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SSH key label

With SSH key, enter the SSH key label: the name of an SSH key saved in your Wallet. Techstack looks up the Wallet item with that name (upper and lower case do not matter) and uses its private key. You never paste the private key into the wizard. If no SSH key in your Wallet has that name, the connection test and the setup stop with an error. Save the key in your Wallet first, then enter its name here. The public half of the key must be in the server user’s ~/.ssh/authorized_keys file, as for any SSH login.

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SSH user, port and sudo

Open SSH details to change the defaults:
  • SSH user. The account Techstack signs in as. The default is root.
  • SSH port. The default is 22. Change it only if your server’s SSH service listens on another port.
  • Use sudo for setup commands. Turn this on when the SSH user is not root. Techstack then runs the setup with sudo. It first tries sudo without a password prompt, so the setup is most reliable when that user may run sudo without typing a password. The setup stops if the user has no sudo at all.

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Test connection

Select Test connection before you continue. Techstack tries to sign in with the address, user, port, and key or password you entered, and shows SSH connection successful or the error it received. The test only signs in. It does not change anything on the server. If you change any field after a test, the result is cleared. Test again before you continue. Common reasons a test fails:
  • the host or IP is wrong, or not reachable from where Techstack runs;
  • the SSH port is different from 22;
  • the key label does not match an SSH key in your Wallet;
  • the server does not accept that key or password for that user.