+.B \-H " or " \-\-host hostname
+specify a particular hostname (or address) that NFS requests will
+be accepted on. By default,
+.B rpc.nfsd
+will accept NFS requests on all known network addresses.
+Note that
+.B lockd
+(which performs file locking services for NFS) may still accept
+request on all known network addresses. This may change in future
+releases of the Linux Kernel.
+.TP