> Yes, that's exactly how port knocking works! Your have been 
> told to only let people in who knocks 3 times -- I knocked 
> only twice so you don't even reveal to me that you are home. 
> After trying couple of times to knocking twice on your door I 
> assume nobody home so I give it up and go to your neighbour 
> to sell my hoover <grin> :-)
> 
> Tamas


Once upon a midnight dreary, while I pondered weak and weary,
Over many a quaint and curious volume of forgotten lore,
While I nodded, nearly napping, suddenly there came a tapping,
As of some one gently rapping, rapping at my chamber door.
`'Tis some visitor,' I muttered, `tapping at my chamber door -
Only this, and nothing more.'

Tony

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