I'm not sure, but how do you set a cookie and have it
expire in ten minutes?

-Rob

--- Sean Abrahams <[EMAIL PROTECTED]> wrote:
> I have a small series of web pages that talks to a
> database and uses
> forms to input/alter data.
> 
> In order to get to these web pages a user has to
> authenticate. If
> valid, I put a cookie on their machine that expires
> in 10 minutes. So
> basically, they can use the forms for up to 10
> minutes, from which
> time they have to log back into the system.
> 
> My problem is that when the user exists the web
> page, they can still
> hit the back button and see all the data they
> entered. This is a
> security issue since someone could basically sit
> down at the same
> computer and hit back to find out some vital
> information, assuming the
> original user doesn't exit the browser.
> 
> I'm trying to setup something that prevents the
> client from just going
> back into the secured area by hitting back. I notice
> that on systems
> such as Wells Fargo's online banking, once you
> logoff, you cannot hit
> back to get back to your account. This is exactly
> what I'm trying to
> do, yet I have been unable to find out how to
> accomplish this.
> 
> I already have all the no-cache meta options in my
> HTML. What would be
> perfect would be if there were a perl/CGI function
> that could detect
> if the user is going back to the .cgi file via the
> back button and
> then act how you choose. However, I feel there
> should be an even
> easier way about this.
> 
> Any ideas?
> 
> 
> Thank you,
> Sean Abrahams
> SFSU : Fiscal Affairs Business Systems
> [EMAIL PROTECTED]
> 
> 
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