Although my Mac mini (Mid 2011) running macOS High Sierra 10.13.6 (can’t upgrade) is pretty old, I have been keeping it “up-to-date” using Homebrew, where possible.
However, as of this week that fails due to SSL certificate issues:
curl: (60) SSL certificate problem: certificate has expired
More details here: https://curl.haxx.se/docs/sslcerts.html
Might be related to the Let’s Encrypt root certificate expiring (yesterday/today)?
Open the url in Safari and accept the exception. That did the trick for me.
Of course it’s a bit of a hack. I think it’s also possible to install the root certificate. Read about it somewhere, but didn’t have the time to look into it.
Yeah, that certificate recently expiring has caused a massive amount of problems across the different communities that I’m a part of. Not just websites!
I know that. It was a recommendation for others who might be in a different situation of their own. From what I can remember, Mozilla Firefox uses it’s own certificates or something like that (I don’t remember the exact wording).
It does work. Just moments before I read the blogpost I followed the same procedure on my dad’s Mac. And the problem with the let’s encrypt certificate has been fixed.
That being said, I’m also using Let’s Encrypt on a mail server. And while that works on 95% of the devices, including Android, iPads running the latest iPasOS versions 14 and 15 refuse to connect.
Apple mail on iPad is a pain in the back anyway when you try to connect to something other than one of the big e-mail providers in my opinion.
The suggested answer on StackOverflow (deleting the expired certificate from /etc/ssl/cert.pem) did the trick, but I wonder whether I’ll notice any side effects…