Preventing FTP Session Timeout Due to Inactivity

FTP connections may be closed by the server after a period of inactivity. To prevent this, periodic keep-alive traffic can be sent using the Command property with a NOOP (no operation) request, which keeps the session active without affecting server state.

Ftp client = new Ftp();

// Periodically send a NOOP command to keep the session alive
client.Command("NOOP");