[MUD-Dev] Gearing up against GEAR

Travis Nixon tnixon at avalanchesoftware.com
Tue Jul 24 12:33:50 New Zealand Standard Time 2001

From: "Alistair Milne" <vw_krug at ntlworld.com>

> This gives me a thought actually about how to detect someone using
> Gear.  If each packet from the client comes with a timestamp which
> the client adds, e.g. "I'm here at 10:43:233" then the server can
> compare two adjacent incoming packets and do a little check to see
> if that transition is legal in the stated amount of time.  If not,

Only one problem with this, and any other sort of timestamp.

> the client is lying.  Since you are basing it on the time reported
> by the client, the problem with packets getting stacked-up at an
> intermediate router does not matter, it does not affect the
> server's

You're trying to catch a lying client, but you're trusting that it
will tell you the true time.

I'm guessing a geared client doesn't actually have a choice about
telling the truth about time.  I'm guessing it has no choice but to
lie. :)

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