Handling custom SITE commands over FTP(E/S)

This article refers to a new feature that will be introduced in the upcoming Syncplify.me Server! version 4.0.

As many of you know, the FTP protocol (and therefore also both its encrypted versions FTPS and FTPES) feature a very simple way for clients to send custom commands to the server: the SITE command (RFC 959).

Some servers implement a fixed set of site-specific commands through it, but Syncplify.me Server! v4 goes beyond that and gives the server’s administrator total control over the SITE command handler behavior and response. Continue reading