nstallation of CNMT System Certificat
I try to put a digital certificate and the keychain application does not allow it, it emits a system root error
MacBook Air 13″, macOS 10.13
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ppalonso_55 wrote:
I try to put a digital certificate and the keychain application does not allow it, it emits a system root error
You would usually install the certificate into your local keychain.
Here is how this is intended to work:
Add certificates to a keychain using Keychain Access on Mac - Apple Support
Contact the folks that issued the certificate for assistance.
They may well require an update to a more recent version of macOS, as macOS 10.13 is quite old, and supported.
MacBook Air Mid 2012 can upgrade to Catalina, and newer MacBook Air models can upgrade further.