I'm guessing you have exported the volumes/qtrees with ntfs security to your admin linux box with root rights.
After that you need to make an options change:
options cifs.nfs_root_ignore_acl on
Then you should be able to mount the filesystems. You won't necessarily see much as far as filesystem rights and won't be able to solve every problem via unix/nfs, but it will get you access.
If you want to make sure that things are "cleaner" between cifs and nfs, remember to set "group" permissions and umask (see 'cifs shares' and 'cifs access' documentation) on your cifs shares. It might also be an idea to check out 'options cifs.preserve_unix_security' .
I know of no one that has had success with 'mixed mode' qtrees. I'd avoid it like the plague.
sorry if I was unclear on that part. I have no issue whatsoever to mount anything. I get the permission denied when I try to access (cd / ls) that qtree using an AD/nis account. That account is the same on both domain.
Root can access the qtree if I set anon to 0 in the /etc/exports.
cifs.nfs_root_ignore_acl is now on
cifs.preserve_unix_security was already on.
What I did was create a volume, and a qtree on top of that volume using NTFS mode.
Then I created an nfs share on that qtree using this in the /etc/exports (/software -actual/vol/vol3/data/software,sec=sys,rw.anon=65535).
Then, from my linux box, I mount that volume (netapp:/software /nfs/software nfs rw 0 0).