OK, the certificate in question was not listed. I've renamed the archive and live cert folders and will run a test to see if that presents any issues.
Bottom line... PLESK needs to be remove LE certificates for us when the domain name is deleted! :D
Thanks for the reply, but those commands apparently only work for active domains. Since the domain in question has already been removed, no results are returned.
I removed a domain that was associated with a letsencrypt SSL certificate. The domain was removed, but the letsencrypt SSL files were left in place.
It would be great if Plesk checked for, and removed, LE files associated with deleted/removed domain names.
This brings me to my question. Is...
Wow. Thanks for re-posting that link. I had seen that early on but read it completely wrong. I assumed a MUST have the AAAA record for the IPV6 address, not that I needed to remove it. Once I removed the IPv6 records from the Linode DNS zone, I was able to create the LetsEncrypt...
.htaccess looked ok, but I renamed it anyway and tested again. Same results.
Two tests down for this hour... :)
And the redirect was probably me testing. I had turned it on/off to test. I have it set to forward www to kengrammer.com right now.
The only entry written into the panel.log file is the same message displayed in pink through the plesck panel:
[2017-07-02 15:07:40] ERR [panel] Let's Encrypt SSL certificate installation failed: Challenge marked as invalid. Details: Fetching...
Hmmm... well, Plesk was configured with "Preferred Domain" set to "none". I switched to "kengrammer.com" and the site no longer renders in the browser for either www.kengrammer.com or kengrammer.com.
I did test and in both configurations when I enter...
OK, I have PLESK set up as the slave DNS to Linode's master DNS, but I'm still getting the exact same error. DIG results appear OK.
I've manually created the .well-known/acme-challenge folder and placed a text.txt file there and it can be accessed from the web.
FYI... the domain I'm working...
I tailed the panel.log file and tried to create the cert and the error displayed at the top of the Plesk screen is the same error written to the log file.
[2017-06-22 23:45:06] ERR [panel] Let's Encrypt SSL certificate installation failed: Challenge marked as invalid. Details: Fetching...