User guide

Configuring SSH
Chapter 14 Configuring Console Management 67
Configuring Ports
The Digi One/PortServer TS 2/4 serial ports must be configured properly before they will support console
management. To configure the serial ports for console management, do the following:
1. From a web browser, login to the Portserver TS as root (default password is dbps). Make the following
changes from the Configure > Ports page.
2. For each port connected to a device that will be managed, change the device type setting for the port to Printer
(prn).
Default device type setting for all ports: terminal (term)
3. Ensure that the port and the device to be managed are using the same flow control scheme and other port
parameters.
Default settings are: software flow control, 9600 bps, 8 bits, None for parity, 1 stop bit.
Configuring SSH
The Digi One/PortServer TS 2/4 supports SSH version 2. Users can connect using a variety of SSH clients that
are available. There are three authentication options you can choose from to validate users. These options are
local authentication, SSH authentication, and RADIUS authentication. There is no special configuration for local
authentication. For how to configure your device for RADIUS authentication, see the chapter on Configuring
RADIUS. See the following section on how to configure SSH for authentication.
If you want to use SSH2 connections and use an SSH public key for authentication, do the following:
• Ensure that you have supported hardware and firmware. This feature works on the devices specified in the
following table. To determine the hardware level of your device, see the label on the bottom of the unit. To
determine the firmware level, use the set config command.
• If you have a supported device, 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
• key is the name of a file that contains the DSA public key. If your host’s implementation requires a com-
plete path to the file, specify the path here as well.
Example: set user name=secure loadkey=143.191.2.34:ssh-file
Note: Use the table to determine whether your Digi product supports SSH2 connections using a public key for authentication.
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