- Plesk Onyx for Linux
- Issuing a free certificate in Plesk either in Domains > example.com > DigiСert SSL > Basic SSL > Activate now or in Domains > example.com > SSL/TLS Certificates > Symantec Encryption Everywhere > Complementary DV > Select (if the extension SSL It! is installed):
PLESK_ERROR: Something went wrong with your order. Please double check configuration parameters. File authentication failed. File not found
PLESK_ERROR: Could not issue an SSL/TLS certificate for example.com
File not found.
- The option Permanent SEO-safe 301 redirect from HTTP to HTTPS is disabled in Domains > example.com > Hosting Settings.
- www and non-www domains exist: www.example.com and example.com.
- There is no A record either for example.com or www.example.com or they resolve to an IP which is not Plesk:
# dig +short example.com
# dig +short www.example.com
DigiCert verifies both www and non-www domain's name and fails if one of them could not be resolved.
Set up a DNS record for hostname example.com or www.example.com, so it is resolved over DNS properly.
If Plesk DNS server is used check the article How to add a DNS record for a domain in Plesk?
In case an external DNS server is used, it is required to add the records on Registrar side.