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

perhaps this helps you: http://support.microsoft.com/kb/832017/http://en-us.sysadmins.lv

Thanks Vadims, I have seen this article but there are a lot of port for many services that i think not necessary for domain communication between a client and server. I remember that there is a article that explain exactly the port that i need! Thanks in advance.

It is desirable to open NTP (UDP/123) for time synchronization.

http://blog.msfirewall.org.uk/2009/02/resource-guide-for-microsoft-active.htmlJason Jones | Forefront MVP | Silversands Ltd | My Blogs: http://blog.msedge.org.uk and http://blog.msfirewall.org.uk