I have an expired certificate in the Trust section that doesn't want to renew (CA key missing) and cannot be deleted because it is in use by NTOPNG, but that isn't installed. Any suggestions on how to get rid of this one?
You can flush the ntopng section using this command (safely with data inspection and backup):
# pluginctl -f OPNsense.ntopng
Cheers,
Franco
Awesome, that worked! Thanks @Franco!