The Network File System (NFS) is a server/client based networking protocol. NFS daemons are composed by nfsd, rpc.mountd, rpc.rquotad, rpc.lockd
Daemon nfsd: nfsd handles client requests from remote systems. Multiple copies of this daemon are usually run so that several requests can be handled simultaneously. However, too many copies of nfsd can increase the demand for CPU time to the point where a drop in performance results. For the best performance the number of copies of nfsd should be set to four.
Daemon rpc.mountd: rpc.mountd handles mount requests from remote systems.
– Daemon rpc.rquotad: It is a rpc server which returns quotas for a user of a local file system which is NFS-mounted onto a remote machine.
– Daemon rpc.lockd: rpc.lockd manages file locking on NFS client and server machines.
In order to run NFS service, the portmap daemon must run.
Usage: nfs {start|stop|status|restart|reload|condrestart}
/etc/exports