Question
Where do Let's Encrypt and SSL It! extensions keep .pem files for private and public keys of Let's Encrypt certificates on a file system?
Answer
On Linux systems, the .pem files are located in these directories:
For Let's Encrypt extension - /usr/local/psa/var/modules/letsencrypt/etc/archive/example.com/.
For SSL It! extension - /usr/local/psa/var/modules/sslit/etc/archive/example.com/.
On Windows systems, the .pem files are located in these directories:
For Let's Encrypt extension - %plesk_dir%varmodulesletsencryptetcarchiveexample.com.
For SSL It! extension - %plesk_dir%varmodulessslitetcarchiveexample.com