- Plesk for Linux
- Plesk for Windows
When connecting to a Plesk server via FTP, the following error is shown:
PLESK_INFO: The server's certificate is unknown. Please carefully examine the certificate to make sure the server can be trusted.
Valid from: xx/xx/xxxx
Valid to: xx/xx/xxxx - Certificate expired!
The SSL certificate used for securing Plesk has expired. This SSL certificate is used for FTPS connections to the server.
Apply one of the following solutions: