![]() It’s recommended only when a legacy deployment requires it. It’s known as active mode because the client dynamically opens a port and listens while the server actively connects to it. Active mode operates in the absence of firewalls or requires firewalls that understand the FTP protocol to open ports between clients and servers automatically. In this mode, the FTP client makes a control connection however, all data connections are initiated from the server to the FTP client. Active Mode: This was the default mode for FTP initially, and various servers still support it. ![]() An administrator can place an FTP server in two modes, active mode and passive mode. While the command channel is used to transmit commands, the data channel is used to transfer data. Continuous and automatic backup helps in proactively storing data at other locations for easy restoration when needed.įTP sessions generally have two channels, a command (control) channel and a data channel.
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