User Manual

Configuring Security Features
12-5
Configuring SSH Version 2 for Secure Communication
This section discusses how to configure a user to use SSH version 2 encryption.
This feature is only available for the following devices.
Password Protection
To configure simple password authentication for an SSH user, no SSH-specific configuration is
required. Simply configure a user by entering the following commands:
set user name=name password=on
newpass name=name
where name is a user name
Example
set user name=ssh-user1
newpass name=ssh-user1
Using a Public Key
To enable public key authentication and to associate a public key with a user, enter the following
command:
set user name=name loadkey=host:key
where
• name is the name of a user
• host is either an IP address or DNS name of a host running TFTP that holds
• key is the name of a file that contains the DSA public key. If your host’s implementation requires
a complete path to the file, specify the path here as well.
Example: set user name=secure loadkey=143.191.2.34:ssh-file
Device Required Hardware Required Firmware
Digi One TS 50000771-01A or higher 82000747a or higher
PortServer TS 2 50000771-02A or higher
PortServer TS 4 50000771-03A or higher