Enabling and Disabling SSH by Generating and Deleting Host Keys

To enable SSH, generate an ECDSA or RSA host key on the device. The SSH server on the RUCKUS ICX device uses this key, along with a dynamically generated server key pair, to negotiate a session key and encryption method with the client trying to connect to it.

While the SSH listener exists at all times, sessions cannot be started from clients until a host key is generated. After a host key is generated, clients can start sessions.

To disable SSH, delete all of the host keys from the device.

When a host key is generated, it is saved to the flash memory of all management modules. When a host key is deleted, it is deleted from the flash memory of all management modules.

The time required to initially generate SSH keys varies depending on the configuration and can be from under a minute to several minutes.