OpenSSH is a remote-login tool that uses the SSH protocol and encrypts the traffic. It offers tunnelling, several authentication methods and extensive configuration options. Administrators and developers use it to manage servers and to reach remote machines over untrusted networks. OpenSSH is developed as part of OpenBSD, and a separate portable release makes it available for other operating systems. You install and run it yourself on your own systems.
OpenSSH is developed by a small group of developers from the OpenBSD Project, and the portable version is maintained by a separate portability team. Donations go to the OpenBSD Foundation, a Canadian not-for-profit corporation. The licence is BSD-style, and the project states that OpenSSH contains no GPL code. It is free software that you can audit and run on your own machines, and the project describes no hosted service. Early development was carried out by developers in Canada, Germany and the United States.