certfree [--subject <subject>]
certfree --subject forum.ipxe.org
Discard the specified certificates from the certificate store. If no subject name is specified, iPXE will discard all stored certificates.
This command is available only when the build option
CERT_CMD is enabled.
--subject option will match against the certificate's Common Name and any Subject Alternative Names, if present.
Certificates that were embedded into iPXE at build time cannot be discarded.