- Plesk Onyx for Linux
- Plesk Onyx for Windows
Let's Encrypt SSL certificate could not be issued when the domain name length more than 64 characters.
PLESK_ERROR: Error: Could not issue a Let's Encrypt SSL/TLS certificate for "long-long-long-long-long-long-long-long-long-long-long-domain.tld"
CSR could not be generated: error:0E06D06C:configuration file routines:NCONF_get_string:no value
Let's Encrypt puts the domain name in the
commonName field of the CSR. According to the RFC, the CN of X509 certs has a maximum length of 64 characters.
lack of CN length verification is registered as a bug with id EXTLETSENC-724
Rename the affected domain, so the length will not exceed 64 characters.