Ports required to obtain domain membership

i have a windows 2003 domain located in the secure inside network. i need to
make a server located in a DMZ network as a member server on this domain.
Basically i need to login to the existing domain from this server.
What are the ports required to open to enable directory access?
Please provide me port nos, protocols and the direction which it should
enable.

Thanks
have a nice day

I don't know why you want to logon Domain from a DMZ server, but this case study may help,

Don't enable firewall on DC
Analysis: To join a domain, the DC must have the following ports open:. TCP port
42 (nameserver service). TCP port 53 (domain service) ...
http://www.howtonetworking.com/cases...ewallissue.htm

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Dinendra" <(E-Mail Removed)> wrote in message news:91B20CE5-ACEF-4706-AD20-(E-Mail Removed)...
i have a windows 2003 domain located in the secure inside network. i need to
make a server located in a DMZ network as a member server on this domain.
Basically i need to login to the existing domain from this server.
What are the ports required to open to enable directory access?
Please provide me port nos, protocols and the direction which it should
enable.

Thanks
have a nice day