How to get the private and public keys from the Let’s Encrypt certificate?

Question

How to get the private and public keys from the Let's Encrypt certificate?

Answer

1. Log into Plesk.

2. Go to Domains > example.com > SSL/TLS Certificates > Advanced Settings or Tools & Settings > SSL/TLS Certificates.

3. Click the green arrow button next to the certificate name:

   

The .pem file will be downloaded which contains the following parts (in the order of appearance):

• CSR (certificate signing request).
• private key.
• the certificate itself (or public key).
• CA certificate(s).

The location of these certificate parts on the file system is described in the article Where does Let's Encrypt extension keep .pem files for private and public keys on a file system?