You can regenerate the private key if it was compromised, or if you need to renew a certificate that was signed externally.
Log on to the appliance console.
Select the Shell option.
Type
sudo /opt/NETAwss/mgmt/make_ssl_cert.The appliance's private key, self-signed certificate, and certificate signing requests are renewed.
If the appliance was using a certificate that was signed externally, you must upload a signed certificate again.