NFS Server Problem

[admins]

I've following situation:

1 NFS Server, 1 ISP Config Server

The ISPC Server sets the user and group correctly (web7 client2). After this the NFS Server sets on this files other owner (web7 ispconfig).
What must I configure, that the NFS Server does not set other premissions to this files or does not check this owners?

Thanks
admins

[zcworld]

i use for my NFS server an setting called 'no_root_squash'