When I try to delete an expired certificate from the SG I get an error message that the cert is in use, even though I have disassociated the keyring with all policies and services. I even searched the sysinfo to see if I missed any other services.
To successfully delete an expired SSL certificate from the SG GUI, you must first:
1. Disassociate all components and polices that are tied to the keyring (where applicable).
2. Reboot the SG.
To delete the certificate using the Management Console:
To delete the entire keyring: