How does an FTPS work? 

 
FTPS (FTP Secure) is a protocol that extends the traditional FTP protocol to add support for SSL/TLS encryption. It provides secure, encrypted communications between the FTP client and server, protecting against eavesdropping, tampering, and message forgery.


FTPS works similarly to regular FTP, with the addition of an SSL/TLS layer that encrypts all data transmitted between the client and server. When an FTPS connection is established, the client and server first negotiate the encryption algorithm to use and then establish a secure, encrypted connection. Once the secure connection is established, the client and server can send commands and data as they would in a regular FTP connection.


FTPS can be configured to use either explicit SSL/TLS, where the client explicitly requests encryption before transmitting data, or implicit SSL/TLS, where encryption is always used and no unencrypted transmission is allowed.