Black Box LES114BA, LES1332A Serial Port Cascading, Automatically generate and upload SSH keys

Network Mask 255.255.255.255

If, however, you want to allow all the users operating from within a specific range of IP addresses (for example, any of the thirty addresses from 204.15.5.129 to 204.15.5.158) to be permitted connection to the nominated port:

Host /Subnet Address

Subnet Mask

Click Apply.

204.15.5.128

255.255.255.224

Note The above Trusted Networks will limit Users and Administrators access to the console serial ports. They do not restrict access to the console server itself or to attached hosts. To change the default settings for this access, you will to need to edit the IPtables rules as described in Chapter 14—Advanced.

4.6Serial Port Cascading

Cascaded Ports enables you to cluster distributed console servers. A large number of serial ports (up to 1000) can be configured and accessed through one IP address and managed through 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.

Black Box’s clustering connects each Slave to the Master with an SSH connection. This uses public key authentication so the Master can access each Slave using the SSH key pair (rather than using passwords). This ensures secure authenticated communications between Master and Slaves, enabling the Slave console server units to be distributed locally on a LAN or remotely around the world.

4.6.1Automatically 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.

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