[MUD-Dev] Gearing up against GEAR

J C Lawrence claw at 2wire.com
Wed Jul 25 19:53:50 New Zealand Standard Time 2001


On Wed, 25 Jul 2001 11:23:26 +0200 
Vincent Archer <archer at frmug.org> wrote:

> You see, the client needs to lie. And lying leads to
> inconsistencies.  For example, you can ping the client. You have a
> RTT (measured server side, so assumed valid), so an accurate
> relationship between the time *reported* by the client and the
> server. You can do the same spot check at any time (classic
> police: repeat the question multiple times; when the suspect
> starts giving out differing answers, he might be lying) to measure
> the drift.

Posit a Windows box running an NTP daemon that also has a
significantly wrong system clock.  The relative clock drift between
your server and the client will change steadily and fairly
consistently as the NTP daemon slowly adjusts the system clock
toward reality.

--
J C Lawrence                                    )\._.,--....,'``.	    
---------(*)                                   /,   _.. \   _\  ;`._ ,.
claw at kanga.nu                                 `._.-(,_..'--(,_..'`-.;.'
http://www.kanga.nu/~claw/                     Oh Freddled Gruntbuggly
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