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Tag: Let's Encrypt

How to fix R3 CA/Certificate issue on pfSense (expired on September 29th, 2021)

Posted on October 18, 2021October 18, 2021 by Thiago Crepaldi

On Wednesday, September 29th 2021 a widely used Certificate Authority from Let’s Encrypt expired and brought the world to its knee. Well, at least my homelab, anyways. The exact message would be something like “The following CA/Certificate entries are expiring: Certificate Authority: Acmecert: O=Let’s Encrypt, CN=Let’s Encrypt Authority R3, C=US” The fix is quite simple,…

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How to fix X3 CA/Certificate issue on pfSense after upgrade to 2.5

Posted on February 26, 2021October 18, 2021 by Thiago Crepaldi

If you recently upgraded to pfSense 2.5, you may have received notifications about some CA/Certificate entries lose to expire. The exact message would be something like “The following CA/Certificate entries are expiring: Certificate Authority: Acmecert: O=Let’s Encrypt, CN=Let’s Encrypt Authority X3, C=US” The fix is quite simple, just visit System >> Cert Manager >> CAs…

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