KeepAlive Parameter

KeepAlive [optional, default=15]: interval, in seconds, for TCP/IP Keep Alive on control connection.

 

Example: KeepAlive=60

 

This option sets TCP/IP Keep Alive interval. This will help with keeping a FTP control connection open during transfers of large files, if your firewall or FTP server implements idle timeout and forcibly closes "idle" connections. See File size limits when transferring large files blog post for details.