I have read/scanned for Samba/NFS problems and answers on the forum, which were quite interesting, many thanks for those :) Setting up NFS can be quite a pain in the ... but getting a warning before the problems arise is really a nice thing to have.
My problem: I installed two PC's with Ubuntu/Kubuntu, both as server, but need some help getting things right. Ubuntu is working fine, on both machines (called P and N), and I installed Samba on machine P to make an easy interface with all the Windows machines in the office, and installed NFS client on the same machine P. The other machine N is setup with NFS server.
Everything is working fine, Windows shows the Samba user home directory, logs in fine on machine P, and the NFS mount is also visible, and when I use a linux shell to login on a linux account, I can see the NFS mounted directory, and I am able to write to it (create new files).
What is working: A Samba user can read files on the NFS mount, and can even rename files on it. What is not working: A Samba user cannot create a new file.
I synchronized the GUID/UID on both machines as to not fall into the NFS users pitfall, so that cannot be the problem. At this moment I don't have that many users installed, so it's easy to keep track.
It might well be that my problem is version related: Machine P runs 12.04 Ubuntu, machine N runs 12.10 (Kubuntu). And I am using PuTTY to get a shell