![]() Most server operating systems come with a native, preinstalled SSH server implementation. Automated SSH sessions are very often used as a part of many automated processes that perform tasks such as logfile collection, archiving, networked backups, and other critical system level tasks. The secure connection between the client and the server is used for remote system administration, remote command execution, file transfers, and securing the traffic of other applications. This access is governed with the user account permissions at the target host system. This allows the SSH client to verify that it is actually communicating with the correct SSH server (instead of an attacker that could be posing as the server).Īfter a successful authentication the server provides the client access to the host system. In the connection setup phase, the SSH server authenticates itself to the client by providing its public key. The SSH client always initiates the setup of the secure connection, and the SSH server listens for incoming connection requests (usually on TCP port 22 on the host system) and responds to them. ![]() The SSH protocol works on the client/server-model. ![]() Contents How Does SSH Server Work? Availability of SSH Servers Quality Equals Security Standardized Security How Does SSH Server Work? ![]()
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