security certificate question

When trying to log on to my workspace, at home, I get a message that 'You have chosen to not trust "xxx" the publisher of the security certificate of the server" - In Dutch: U hebt gekozen om "Sectigo RSA Domain Validation Secure Server CA", de uitgever van het beveiligingscertificaat van de server, niet te vertrouwen.


How do I undo this? I can't work from home now....

MacBook

Posted on Dec 20, 2019 4:15 AM

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Question marked as Top-ranking reply

Posted on Dec 20, 2019 10:52 AM

Had the same issue; used the following steps to fix.


  1. Download this certificate: http://comodo.tbs-certificats.com/SectigoRSADomainValidationSecureServerCA.crt
  2. Install it by opening.
  3. Search in keychain app for Sectigo and double click found certificate with name "Sectigo RSA Domain Validation...."
  4. Expand item 'Trust' by clicking arrow.
  5. Change item 'When using this certificate:' to always trust.


Good luck.



3 replies
Question marked as Top-ranking reply

Dec 20, 2019 10:52 AM in response to mariska144

Had the same issue; used the following steps to fix.


  1. Download this certificate: http://comodo.tbs-certificats.com/SectigoRSADomainValidationSecureServerCA.crt
  2. Install it by opening.
  3. Search in keychain app for Sectigo and double click found certificate with name "Sectigo RSA Domain Validation...."
  4. Expand item 'Trust' by clicking arrow.
  5. Change item 'When using this certificate:' to always trust.


Good luck.



Dec 20, 2019 2:52 PM in response to mariska144

Using Keychain Access, open the system keychain, select certificates, and look for the specified Sectigo RSA cert that’s been disabled, and mark it trusted. Effectively, this: https://serverfault.com/a/354033 There should not be a need to download a root certificate here, as you already have one and it’s somehow marked untrusted. Not unless there’s an issue with the old root cert, but I’m here assuming you’ve somehow marked it untrusted.

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security certificate question

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