This procedure assumes you have received a certificate from a CA, just completed To Import a Root Certificate to the Distributed Authentication User Interface Load Balancer, and are still logged into the load balancer console.
In the BIG-IP load balancer console, click Proxies.
Click the Cert-Admin tab.
The key lb-3.example.com is in the Key List. This was generated in To Request a Certificate for the Distributed Authentication User Interface Load Balancer.
In the Certificate ID column, click the Install button for lb-3.example.com.
In the Certificate File field, click Browse.
In the Choose File dialog, navigate to the file that contains the certificate text sent to you by the CA and click Open.
Click Install Certificate.
On the Certificate lb-3.example.com page, click Return to Certificate Administration Information.
Verify that the Certificate ID indicates lb-3.example.com on the SSL Certificate Administration page.
Log out of the load balancer console.