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Tag: certificates

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

Posted on October 18, 2021July 28, 2022 by Thiago Crepaldi

On Wednesday, September 29th 2021 a widely used Certificate Authority (CA) from Let’s Encrypt expired and brought the world to its knees. 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…

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How to fix the X3 CA/Certificate issue after upgrading to pfSense 2.5

Posted on February 26, 2021August 6, 2022 by Thiago Crepaldi

If you recently upgraded to pfSense 2.5, you may have received notifications about some CA/Certificate entries close to expiring. 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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Install Let’s Encrypt SSL certificates on your Supermicro X10 from Synology on a schedule

Posted on February 15, 2021December 30, 2024 by Thiago Crepaldi

Recently I have added a Supermicro X10DRi-T4+ to my homelab and a natural idea was to install a Let’s Encrypt SSL certificate and replace the original self-signed one. For such, I had to adapt a couple python scripts [1] [2] first published by Jari Turkia. None of them worked for Supermicro X10DRi-T4+, but it wasn’t…

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Setting up Let’s Encrypt SSL certificates on your pfSense

Posted on June 27, 2020October 17, 2022 by Thiago Crepaldi

In a previous post, I have described how to issue Let’s Encrypt certificates for free. SSL certificates have many applications, including replacing self-signed certificates that are not recognized by browsers. That is the goal of this post. Replace pfSense’s self-signed certificate by the one we have created using Let’s Encrypt API. Let’s Encrypt setup If…

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Issuing Let’s Encrypt certificates on your pfSense using ACME!

Posted on June 25, 2020August 15, 2022 by Thiago Crepaldi

If you are like me and don’t want unencrypted data flowing on your network or maybe even on Internet, than this post is for you! I will adopt CloudFlare DNS as it has API to integrate with Let’s Encrypt SSL services through the ACME plugin. Both CloudFlare and Let’s Encrypt are free, so that is…

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