Digi TransPort LR54 - Terminate an SSH Connection; Using SSH with Key Authentication

Services and applications Using an SSH server
Digi TransPort WR Routers User Guide
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Warning: Permanently added '192.168.1.1' (RSA) to the list of known hosts.
Password: **********
Welcome admin
Access Level: super
Timeout : 180 seconds
digi.router>
Terminate an SSH connection
Command line
To terminate an SSH connection:
n Exit the command-line interface using the exit command.
Using SSH with key authentication
Rather than using passwords, you can use SSH keys to authenticate users connecting via SSH, SFTP,
or SCP. SSH keys provide security and scalability:
n Security: Using SSH keys for authentication is more secure than using passwords. Unlike a
password that can be guessed by an unauthorized user, SSH key pairs provide a more
sophisticated lock. A public key configured on the TransPort device is paired with a private key
on the user's PC. The private key, once generated, remains on the user’s PC.
n Scalability: SSH keys can be used on more than one TransPort device.
Generating SSH key pairs
On a Microsoft Windows PC, you can generate SSH key pairs using a terminal emulator application,
such as PuTTY or Tera Term.
On a Linux host, an SSH key pair is usually created automatically in the user’s .ssh directory. The
private and public keys are named id_rsa and id_rsa.pub. If you need to generate an SSH key pair,
you can use the ssh-keygen application.
For example, the following entry generates an RSA (Rivest–Shamir–Adleman) key pair in the user's
.ssh directory:
ssh-keygen -t rsa -f ~/.ssh/id_rsa
The private key file is named id_rsa and the public key file is named id_rsa.pub. (The .pub extension
is automatically appended to the name specified for the private key output file.)
Required configuration items
n Name for the user
n SSH public key for the user
n SSH key type
Optional configuration items
n If you want to use the configured user via the serial or web UI interfaces, you must configure a
password for the user.