name: SSH
full_form: Secure Shell
context: the Itf-N interface, and is not intended to be exhaustive. a) Where SSL/TLS is required, either SSLv3 or TLS may be used . However, it is noted that TLS has enhanced security over SSL. b) SSL/TLS allows either unidirectional authentication where the server is authenticated to the client only, or bidirectional authentication where both client and server authenticate to each other. Unidirectional authentication is the usual method used in the public internet, however for network management applications bidirectional authentication is recommended to allow both parties to know they are communicating with the desired endpoint. c) References [RFC 2246], [RFC 3546], [SSL V3]. SSH Security Services: Overview and Capabilities SSH is an Application Layer (Layer 7) security protocol commonly used to directly replace insecure protocols Telnet and File Transfer Protocol (FTP) protocols. Telnet and FTP are insecure protocols which transmit passwords and all other data in the clear. SSH can also be
description: SSH is a security protocol operating at the Application Layer, used to securely access and manage network devices by replacing insecure protocols like Telnet and FTP.
explanation: The text explicitly states that SSH is a 'security protocol' operating at the Application Layer, which aligns with the definition of a Protocol entity type.
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