[TYPO3-english] cookieDomain issue

[Loek Hilgersom]

Hi all,

I'm having an issue with the [SYS][cookieDomain] setting.

I have a production server on www.domain.com, including a number of subdomains, 
and test and acceptation servers on test.domain.com and acceptation.domain.com. 
Because we need the cookieDomain set at '.domain.com' we are running into 
BE-login issues on the test and acc servers, obviously because the cookies of 
the different servers interfere with eachother. I can only login on the test 
server after removing the session cookie for .domain.com

The problems only started after upgrading from 4.5 to 6.2, with 4.5 we never had 
that problem, though the settings were the same.

Does somebody know what has been changed there, or how I can get around this 
problem?

Thanks,
Loek