Services Use SSH with key authentication
Digi Connect EZ Mini User Guide
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Use 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 more
sophisticated security. A public key configured on the Connect EZ 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 Connect EZ 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 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
Additional configuration items
n If you want to access the Connect EZ device using SSH over a WAN interface, configure the
access control list for the SSHservice to allow SSH access for the External firewall zone.
Web
1. Log into Digi Remote Manager, or log into the local Web UI as a user with full Admin access
rights.
2. Access the device configuration:
Remote Manager:
a. Locate your device as described in Use Digi Remote Manager to view and manage your
device.
b. Click the Device ID.
c. Click Settings.
d. Click to expand Config.
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