use NOOP for chaff

[trothr]

UFT (protocol) has always had a NOOP.
For this issue: ensure that servers accept NOOP and add NOOP to clients for chaffing.

As Dan Rathbun put it, be the needle by growing the haystack.

[trothtech]

Note: chaff can also use comments in the command stream, that is, any command lines beginning with "#" or "*".