File Extension SSH2 File Format SSH Secure Shell Client SSH2 stands for SSH Secure Shell Client. This was last updated in March 2012 By Margaret Rouse Browse File Extensions Alphabetically: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # Ask a Question. Find an Answer. Ask your peers a question about this file extension. Ask a Question Use Unix IRC shell as socks proxy Eliminating password request for SSH for Linux and Oracle How to configure Cisco VIRL - VMMaestro to use external telnet and SSH Client?