My domain is: cloud.xts.nl
I run Synology DSM version: 6.2.2-24922-4
My web server is (include version): apache 2.4 and php 7.2
I can login to a root shell on my machine: yes
I currently only have 1 certificate installed, the default synology.com one.
I try to install my own certificate via the Synology tool using the “Get a certificate from Let’s Encrypt” on my Synology NAS with the following settings:
domain name: xts.nl
subject alternative name: cloud.xts.nl;homenas.xts.nl;wolk.xts.nl
There are CNAME records in place for cloud.xts.nl, homenas.xts.nl and wolk.xts.nl
ports 80, 443, 887-888, 5000 5001 are all forwarded to my Synology NAS.
The error I get is: “Failed to connect to Let’s encrypt. please make sure the domain name is valid.”
What am I doing wrong? what is the issue? I cannot seem to get logfiles containing this error.