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Sub domain Lets-Encrypt challenge failed
Hi. Brand new to DO. I just installed NextCloud in my first droplet using a self signed SSL cert on the server IP address. All works as expected. :)
Now, I have added a sub domain on my (external to DO) web hosting company (VentraIP) and set the A record there to point to the DO IP address. It works fine, resolving to the DO Nextcloud server instance as above.
So… now I want to use Lets-Encrypt to make it secure. When I follow the instructions to setup the SSL
sudo nextcloud.enable-https lets-encrypt
I get the error:
Detail: During secondary validation: Invalid response from
(where cloud.mydomain.com.au == my real subdomain name)
The subdomain is listed in the Trusted Domains.
The firewall port is openned.
What have I missed, do you think?
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