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Re: Re: Expiring CGI pages

by legLess (Hermit)
on Mar 07, 2002 at 20:29 UTC ( [id://150117]=note: print w/replies, xml ) Need Help??


in reply to Re: Expiring CGI pages
in thread Expiring CGI pages

Ok, you'll have to explain this to me, unless it's humor :)

If the server sends the current time with the header, and page is set to expire at that exact time, how does the client's clock even come into it?
--
man with no legs, inc.

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Re: Re: Re: Expiring CGI pages
by perrin (Chancellor) on Mar 07, 2002 at 20:58 UTC
    The server says "this expires at 3:27". How does the client machine know when it's 3:27? It checks its own clock. That clock can be off. Way off. This kind of problem happens any time you have two machines talking about things happening at exact times but their clocks are not synchronized.

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