To renew Administration Server certificates, with the nicknames Admin-CA-Cert, Admin-Server-Cert, and Admin-Client-Cert execute the renew-admin-certs CLI command. . This command also updates the nodes that are currently running and are accessible with the renewed certificates.
After executing this command, it is recommended that you restart the administration servers and nodes so that the new certificates can take effect. You must re-register a node if the node was offline (not running or was not accessible due to network problems) during the renewal of the certificates. To renew the administration server certificates, execute the following command.
wadm> renew-admin-certs --user=admin --password-file=admin.pwd --host=serverhost --port=8989 --validity=120
See CLI Reference, renew-admin-certs(1).