Some FTP client programs send "No-Operation" commands (FTP NOOP commands), for the usual purpose of keeping the session alive or to verify that it is still functional. NcFTPd frowns upon users that try to use NOOP and does not reset the idle-timeout and will use this opportunity to yield to another user by waiting a short amount of time. Therefore, this option imposes a slight time penalty on a user who sends a NOOP, but it is unlikely that the user would send this command unless if the user had important things to do.

This option allows you to change the number of seconds to wait after each NOOP command. The value may be a fractional number of seconds.

Examples:

noop-delay=0.333
noop-delay=2.5

Recommendation:

#noop-delay= (commented out)