On each computer on the network there is an NFS server running, starting at bootup (edit the runlevel to enable that). In Suse Linux, NFS shares can be configured in YAST (NFS server configuration) or directly in /etc/exports file. Don't configure the remote root to act as local root! Shares should be configured to be accessed only from the local network 192.168.0.0/24 or 192.168.0.0/255.255.255.0.
/media/downloads/ 192.168.0.0/255.255.255.0(root_squash,sync) UIDs have to be the same on all computers for the permissions to work properly.