Apache/Nginx - Disable Weak TLS Ciphers

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Okay...so for somebody who has a wide breadth of expertise, barely any of networking -- and even less of that in security, how would I even get started on learning about What any of this means?

For instance, I ran my JF instance through the testing site you posted and didn't get a whole lot of warnings or any red flags, the largest one was that my cert expires in less than 60 days (it renews via CertBot probably about that often), but some of the other warnings might as well have been in a different alphabet for how much sense they made to me and there aren't really any resources I'm aware of for learning what it means, identifying a root cause, searching for proper solutions, then implementing.

Thoughts?