nfsd is the daemon that handles client file system requests. Only the super-user can run this daemon.
The nfsd daemon is automatically invoked in run level 3 with the -a option, described below.
By default, nfsd starts over the TCP and UDP transports. You can change this with the -p option, described below.
A previously invoked nfsd daemon started with or without options must be stopped before invoking another nfsd command.
Administrators wanting to change startup parameters for nfsd should, as root, make changes in the /etc/default/nfs file rather than editing the /etc/init.d/nfs.server file. See nfs(4).