macOS 15 or later

Tunello support

Before contacting us, check the basic connection parameters.

hello@firefly.in.ua Product overview

Quick checks

  • Confirm the SSH server address, port, and username.
  • Confirm that the imported public key is authorized on the server.
  • Compare the host-key fingerprint with a trusted source.
  • Check that the selected local port is not used by another process.
  • Export diagnostics and remove hostnames, IP addresses, usernames, and other sensitive details.

Contact us

Include the Tunello version, macOS version, expected and actual result, and reproducible steps. Never send private keys, passphrases, access tokens, or production credentials.