If you host CS 2007 in a web farm, you might have noticed an annoying occurence where credentials seem to be lost after login. So you log into control panel, do a screen refresh or two, and get prompted for your credentials again.
It's almost as if it lost...session.
The solve is to setup a machinekey that can be negotiated to preserve state as your requests get bounced around.
Step 1: Create a unique machine key. You can do so here:
http://www.aspnetresources.com/tools/keycreator.aspxThe output will look something like: <machineKey validationKey="long string here" decryptionKey="blah" validation="SHA1" />
Step 2:Paste the output into your web.cong file, somewhere in the <system.web> area