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XPort Pro™ User Guide 135
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The XPort Pro supports Secure Shell (SSH) and Secure Sockets Layer (SSL).
Secure Shell: SSH
SSH is a network protocol for securely accessing a remote device. This protocol
provides a secure, encrypted communication channel between two hosts over a
network.
Two instances require configuration: when the XPort Pro is the SSH server and when
it is an SSH client. The SSH server is used by the CLI (Command Mode) and for
tunneling in Accept Mode. The SSH client is for tunneling in Connect Mode.
SSH Server Configuration
To configure the XPort Pro as an SSH server, there are two requirements:
Defined host keys: both private and public keys are required. These keys are
used for the Diffie-Hellman key exchange (used for the underlying encryption
protocol).
Defined users: these users are permitted to connect to the XPort Pro SSH
server.
To configure SSH server settings:
1. Click SSH
SSH Server: Host Keys at the top of the page. The SSH Server:
Host Keys page appears.
2. If the keys exist, locate the Private Key and Public Key files using the Browse
button. Select the Key Type (RSA is more secure) and click Submit to upload
the keys.
Note: SSH keys may be created on another computer and uploaded to the XPort
Pro. For example, use the following command using Open SSH to create a 1024-bit
DSA key pair:
ssh-keygen –b 1024 –t dsa
SSH Keys from other programs may be converted to the required XPort Pro format.
Use Open SSH to perform the conversion.
To convert from RFC-4716 format:
ssh-keygen –i