I’ve been using letsencrypt certificate with synology box for a while without any issues, DNS provided by duckdns.
I decided to build an additional box - an Ubuntu LAMP server. I added an additional domain with duckdns.
At this point both boxes are behind the same router, port forwarding resolves traffic between the two boxes.
Encryption was done with DNS challenge and appeared good. However https logging into the Ubuntu Apache server never worked.
My research led to this:
https://www.ssllabs.com/ssltest/analyze.html?d=romicvawebtrees.duckdns.org shows name mismatch…
Thank you in advance.
It produced this output: Congratulations! Your certificate and chain have been saved at:
My web server is (include version): Server version: Apache/2.4.29 (Ubuntu)
The operating system my web server runs on is (include version): Ubuntu 18.04
My hosting provider, if applicable, is: self
I can login to a root shell on my machine (yes or no, or I don’t know): yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): no / terminal
The version of my client is (e.g. output of
certbot --version or
certbot-auto --version if you’re using Certbot): certbot 0.31.0