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From: Hagster on 2 Dec 2008 11:57
Hello All,

I have two PCs on a network that get there session variables mixed up... read
on

Scenario
In my application a few session variables are set up on the first page and
then as the user progress through about 5 pages the session variables are
called and used etc, until the last page when they are all set back to blank
and the application starts again. (no problems there all works fine)

Now I have about 30 PC's on the network all using this application at the same
time, as you would expect each PC creates its own session variables allowing it
to progress through its version of the application, with no problems. (and it
works fine)

Today I used an imaging application to make an image of one of my network PCs
hard drives and then put another PC onto my network that was configured from
the image, Is it this that has caused my problem?

I can start the application on one PC go half the way through it, then jump
onto the other PC (the imaged hard drive) start the application with different
values, return to the first PC and continue only to find it is now using the
session variable values from the second PC.

Cold fussion docs says that 'Sessions are specific to both the individual
client and the application' so im assuming because i cloned a PC hard drive to
put another on the network the client OS (windows) and application (internet
explorer) are the same and therefore causing my session variables to get mixed
up between these two PCs.

Any ideas how to correct this?
How can you change the client identification within windows etc....

Kind Regards Guy




From: fober1 on 2 Dec 2008 16:52
hi,

Each PC is identified by a session ID that is saved in a cookie, which
you obviously copied in your image to the new PC as well.

If you just want to fix this immediate issue, then clear your browser cache
and delete your cookies.

To avoid this issue going forward you can setup the live-time of the session
cookies to a shorter period of time (as example to 0:00:00 so they immediately
expire once the browser on a PC is closed.

cheers,
fober

<cfapplication
name= "mysite"
sessionmanagement= "Yes"
sessiontimeout= "#CreateTimeSpan(1,0,0,0)#"
applicationtimeout= "#CreateTimeSpan(1,0,0,0)#"
>




From: Hagster on 3 Dec 2008 05:30
Hello fober1,

Thanks you pointed me in the correct direction, but my resolve was a little
different.
It seems the browser settings were set up to use persistent cookies (stored on
local hard drive) if I un-tick this setting and configure the browser to only
use session cookies (in memory) I thought this would solve the problem because
it would generate a unique cfid, cftoken etc each time a the browser was
opened, but it does not work.
When on session cookies are enabled on the browser it forgets all session
variables in cold fussion when moving to the next page in my application (which
I dont really understand if this is correct or not)

So to get it working all I did was to turn back on persistent cookies and
delete all cookie files on the hard drive so it generated a new unique one.

Question.
Should I be able to run a browser and have persistent cookies turned off, and
only session cookies enabled to hold the cookies in memory and not the local
hard drive?

Kind Regards Guy



From: fober1 on 3 Dec 2008 23:52
Hi,

You can disable session cookies in cfapplication, and manually write the
cookie using the cfcookie tag. This way you can set them to immediately expire
when the browser is closed.

http://www.dreamincode.net/code/snippet45.htm

cheers,
fober

btw.I hope you appreciate to get this advice for free :-) I've just seen a
website where they charge you $4 bugs for it !!!
http://www.communitymx.com/abstract.cfm?cid=3AA99
(went away to count how much money he could have already made here)



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