Linux - SecurityThis forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.
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Use HTTPS the way it was intended, which includes "proving you are who you say you are" via a CA signed server certificate
Use "Let's Encrypt" as the CA to sign the certificate (free)
Abandon current use of free DDNS provider "FreeDNS", https://freedns.afraid.org , because their free DDNS domains are NOT in the "Public Suffix List", thus Let's Encrypt has a very low probability of signing them successfully, due to "rate limits" that are applied by Let's Encrypt
Switch to free DDNS provider "Dynu DNS", https://www.dynu.com , because their domains ARE in the Public Suffix List, thus can be easily signed by Let's Encrypt
Note: Did not use free DDNS provider "no-ip", https://www.noip.com , even though they are the big fish in the pond, because of their requirement for you to login to their website manually once every 30 days to keep your free domain flagged as "active"
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