To secure FTP connections to your server, Plesk supports the FTP
Secure (FTPS, FTP-SSL/TLS) protocol. Plesk gives you the ability to
allow secure, plain, or both secure and plain FTP connections to the
server.
To configure the allowed FTP connections, go to Tools & Settings >
Security Policy. We recommend that you only allow FTPS connections.
Note that it is required to comply with the PCI DSS standard.
By default, Plesk supports explicit FTPS only. However, you can turn
implicit FTPS on if you wish. See the
FTP
section of the Advanced Administration Guide for Linux, or the
Switching On Implicit FTPS
section
of the Advanced Administration Guide for Windows for more details.
Defining FTPS Policy per IP Address (Windows)
If you are using Plesk for Windows, you have the option to configure the
FTPS policy separately for each IP address. To do so, go to Tools &
Settings > Security Policy and select the Use custom FTPS policy
per IP address option. After that, go to Tools & Settings > IP
Addresses. Click the IP address for which you want to configure the
FTPS policy and select the desired option under FTPS usage policy.