Serial Port Cascading; Automatically Generate And Upload Ssh Keys - Tripp Lite B092-016 Owner's Manual

Chapter 4: Serial Port, Device and User Configuration
4.6

Serial Port Cascading

Cascaded Ports enables you to cluster distributed Console Servers so that a large number of serial ports (up to 1000) can be
configured and accessed through one IP address and managed through the one Management Console. One Console Server,
the Master, controls other Console Servers as Slave units and all the serial ports on the Slave units appear as if they are part
of the Master.
Each Slave connects to the Master with an SSH connection using public key authentication. So the Master accesses each
Slave using an SSH key pair, rather than using passwords, ensuring secure authenticated communications. So the Slave
Console Server units can be distributed locally on a LAN or remotely over public networks around the world.
4.6.1

Automatically generate and upload SSH keys

To set up public key authentication you must first generate an RSA or DSA key pair and upload them into the Master and Slave
Console Servers. This can all be done automatically from the Master:
• Select System: Administration on Master's Management Console
• Check Generate SSH keys automatically and click Apply
Next you must select whether to generate keys using RSA and/or DSA (if unsure, select only RSA). Generating each set of
keys will require approximately two minutes and the new keys will destroy any old keys of that type that may previously been
uploaded. Also while the new generation is underway on the master functions relying on SSH keys (e.g. cascading) may stop
functioning until they are updated with the new set of keys. To generate keys:
• Select RSA Keys and/or DSA Keys
• Click Apply
• Once the new keys have been successfully generated simply Click here to return and the keys will automatically be
uploaded to the Master and connected Slaves
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