The browser was telling people that the certificate had expired, big red warning, not good! It frightened me and I had a hard time trouble shooting the problem because I’m not a sys admin, I installed the certificates by following online tutorials I found online.
The browser warning went away, but, I don’t want to be in that situation again, I want to learn Ubuntu and Nginx, I’ve found two courses online. Do you think that after taking those courses I’ll have a better understanding of how to trouble shoot this kind of thing in future, or is there something else I’d need to learn to be able to wrap my head around SSL and certificates and stuff?
Best wishes, Michael