Port needed between a member server and Domain Controller that are separated by a firewall

Hi guys,

about 2 years ago i have found a fabulous MS KB article that listed all port needed in order for working in a domain scenario between a client and DC Server.

Now i found only this articles:

http://support.microsoft.com/kb/179442/en-us but it's for a domain trust!

Anybody remember or have a specific KB article?

Thanks in advance