OpenSSH

OpenSSH, also known as OpenBSD Secure Shell, is a suite of security-related network-level utilities based on the SSH protocol, which help to secure network communications via the encryption of network traffic over multiple authentication methods and by providing secure tunneling capabilities. OpenSSH was designed as a free and open-source alternative to the proprietary SSH implementation developed by Tatu Ylönen and offered by SSH Communications Security.
OpenSSH is a project of the OpenBSD team and is funded via donations. The proprietary SSH implementation was originally developed under a license that allowed other developers or users to fork or create an offshoot of the software with their own customizations. As a result, OpenSSH is a fork of one of those customizations and was first released as part of a Unix-like operating system called OpenBSD in 1999. As part of the forking process, OpenSSH was released under a BSD license, an open-source license that allows open manipulations and contributions. In order to effectively maintain the program, the OpenSSH project is developed under a policy of producing clean and audited code.


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