I have a Child Domain W2k3 and an NT4 Domain with a trust
relationship (Two Way trust).
The trust has been established without problem but when I
use UserManager NT4 from PDC NT4 and I add a member of
domain W2k3 to a NT4 Local Group, the member appear
with: "?"Unknow Account.

I already update LMHOSTS file on PDC NT4 with syntax:

@IP PDCNAME #PRE #DOMOMAIN-NAME
@IP "DOMAIN-NAME \0x1b" #PRE

When I verify Trust from DC W2k3, it's OK.
I don't have problem for browse Domain Account User W2k3
from PDC NT4.
I don't have problem from domain W2k3 for add NT4 Domain
User to W2k3 Local Group

Has anybody any ideas ?

Try enabling anonymous name/sid translation in your DC GPO.

/neo

ps - there are other settings that can impact nt4/2003 trust relationships

"cedric" <anonymous@discussions.microsoft.com> wrote in message
news:28bff01c46424$615afe10$a301280a@phx.gbl...

Thank you very much, I can now visualize name account NT4
to a local group....But now I have a second problem; I
can't access file share ressource on domain NT4 with a
domain W2K3 account.
I used Local Group NT4 and I paid attention to Share
permission and NTFS permission.

Is it necessary to recreate trust relationship ?

Thank you very much, I can now visualize domain name W2k3
account to a domain NT4 local group....But now I have a
second problem; I can't access file share ressource on
domain NT4 with a domain W2K3 account.
I used Local Group NT4 with W2k3 account inside and I
paid attention to Share permission and NTFS permission.
Is it necessary to recreate trust relationship ?