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sshd, the SSH server daemon. The OpenSSH server can authenticate users using the standard methods supported by the SSH protocol: with a password; public-key authentication, using per-user keys; host-based authentication, which is a secure version of rlogin 's host trust relationships using public keys; keyboard-interactive, a generic challenge ...
An SSH server is a software program which uses the Secure Shell protocol to accept connections from remote computers. SFTP / SCP file transfers and remote terminal connections are popular use cases for an SSH server.
Secure Shell (SSH) is a protocol allowing secure remote login to a computer on a network using public-key cryptography.SSH client programs (such as ssh from OpenSSH) typically run for the duration of a remote login session and are configured to look for the user's private key in a file in the user's home directory (e.g., .ssh/id_rsa).
The most commonly implemented software stack is OpenSSH, released in 1999 as open-source software by the OpenBSD developers. Implementations are distributed for all types of operating systems in common use, including embedded systems. SSH applications are based on a client–server architecture, connecting an SSH client instance with an SSH ...
The operating systems or virtual machines the SSH clients are designed to run on without emulation include several possibilities: . Partial indicates that while it works, the client lacks important functionality compared to versions for other OSs but may still be under development.
Dropbear is a software package written by Matt Johnston that provides a Secure Shell-compatible server and client. [2] It is designed as a replacement for standard OpenSSH for environments with low memory and processor resources, such as embedded systems. It is a core component of OpenWrt and other router distributions.
OpenSSH-based client and server programs have been included in Windows 10 since version 1803. The SSH client and key agent are enabled and available by default and the SSH server is an optional Feature-on-Demand. [1] [2]
As an example, the sftp program supplied with OpenSSH implements this. [10] Some implementations of the scp program support both the SFTP and SCP protocols to perform file transfers, depending on what the server supports. The scp program supplied with OpenSSH 9.0 and higher defaults to using SFTP. [11]