Query on wildcard certificate

L4 Transporter

Query on wildcard certificate



Our wildcard certificate doesn't have any SANs associated with it.


Is this a requirement for usage of a wildcard cert?

Can I use the same certificate for both web management and GP?


Thanks in advance.

L7 Applicator

Re: Query on wildcard certificate


The cert only needs to contain the wildcard entry also as SAN. Otherwise you will get cert errors.

--> because of RFC 2818

If a subjectAltName extension of type dNSName is present, that MUST be used as the identity. Otherwise, the (most specific) Common Name field in the Subject field of the certificate MUST be used. Although the use of the Common Name is existing practice, it is deprecated and Certification Authorities are encouraged to use the dNSName instead.


L7 Applicator

Re: Query on wildcard certificate

... and yes it is possible to use the same cert for management web UI and GlobalProtect.

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