Use the Sensor Management page to import the host keys of managed appliances into the Central Management System global host-key database. You can do the following:
Import the key for a specific appliance as part of the connection settings. You can edit the settings of an existing managed appliance, or import the key while you are configuring the initial connection with an appliance.
Import keys from other appliances, even those appliances that are not currently being managed by the Central Management System appliance.
Caution
If compliance mode is not enabled, global host-key authentication is optional. If you choose to use global host-key authentication, you must explicitly enable it in addition to importing the global host key. For details, see Enabling strict and global host-key checking using the CLI.
Important
Before you perform this procedure, you must obtain the host key from the managed appliance. For appliances running Release 7.6.0 or later, you can obtain this key from the appliance Web UI or CLI. For appliances running an earlier release, you must obtain this key from the CLI. For details, see Obtaining a host key using the Web UI or Obtaining the CM Series Appliance host key using the CLI or Obtaining a managed appliance host key using the CLI.
Click the Appliances tab. The Sensors tab should be selected.
If the appliance is already being managed, click Edit in the appliance row.
Paste the key into the Sensor Host Key field.
Important
The key must start with the appliance IP address and it must not be enclosed in double quotation marks. If the key starts with the hostname, replace the hostname with the IP address.
Click Update Sensor. The key is added to the global host-keys database and displayed in the Sensor Host Keys section.
Click the Appliances tab. The Sensors tab should be selected.
Click Add Sensor Host Key.
Paste the key into the Host Key field in the Sensor Host Keys section.
Click Add Key.
Click Remove in the row for the key in the Sensor Host Keys section.
Caution
If you delete a host key that is in use, the connection between the Central Management System appliance and the managed appliance is broken.