Should solve problem with the added benefit that removing the old Root CA
is probably a good test to do anyway.

--Matt

On Tue, May 12, 2020 at 6:40 PM Harald Koch <[email protected]> wrote:

> On Tue, May 12, 2020, at 18:34, Julian van den Berkmortel wrote:
>
> It's in regards to the "probe_ssl_earliest_cert_expiry" metric which uses
> the date of the earliest expiring certificate in the chain as its value.
> Its value at the moment is the 30th of May because the root certificate is
> the certificate which will expire the earliest in the certificate chain
> right now, even though the end-user certificate won't expire for the next
> couple of months and stay valid because of the cross signing certificates
> as you explained (thus causing the false-positives alerts).
> I was curious whether there is another solution to prevent false-positives
> but keep alerting active for the domains in question which have the
> expiring certificate as their root certificate, other than completely
> renewing the certificate.
>
>
> - make sure the newer (cross-signing) certs are in your trust store, so
> that the blackbox exporter can find a valid chain to/through them.
> - remove the expiring Root CA from your trust store.
>
> Problem solved?
>
> --
> Harald
>
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-- 
--Matt

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