hi guys, I have a domain network running smoothly using samba3 as a PDC with about 25 client machines both linux and different verisons of windows. I have another domain using a NT server that serves a lab area. This is being replaced with a win sbs 2003 server. i have to stay with windows due to dependancies of alot of the software run in the lab. I really wanted to get rid of the 2 domains and just have 2 subnets on the one main domain with the existing samba3 PDC. My question is can win 2003 sbs live on a network and not be the PDC? Do you think it would be better to keep two separate domains and create a trust relationship between the two for authentication purposes? thanks for any help shaun