NFS exports on Darwin


I've been trying for some time now to be able to export a directory from Darwin to other *nix computers with NFS. I've set the exports in the NetInfo database, started the apppropriate daemons and still no go. I've even tried a program called NFSManager that I found on

Everytime I get the same errors, if I try to mount from another *nix box as root, I get "permission denied".
If I try to mount as a normal user I get "credential too weak".

Has anyone been able to export directories with NFS from Darwin? If so How?