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Root on one server should not necessarily have root access on another box, therefore, by default the root userid is mapped to userid nobody in NFS.

nobody UID -2 GID -2 (or 65534 65534 for unixes that don't allow negative numbers)

If this is not the desired behaviour, set up /etc/exports as follows:

/home/work -root=host1

This allows server host1 normal root behaviour on /home/work . (Instead of a hostname, a netgroup can be specified).

To disable suid on NFS mounted filesystems:

host1:/usr/local/bin /usr/local/bin nfs ro,nosuid 0 0