.B rpc.mountd
do not offer certain versions of NFS. The current version of
.B rpc.mountd
-can support both NFS version 2 and the newer version 3. If the
-NFS kernel module was compiled without support for NFSv3,
+can support both NFS version 2, 3 and 4. If the
+either one of these version should not be offered,
.B rpc.mountd
must be invoked with the option
-.B "\-\-no-nfs-version 3" .
+.B "\-\-no-nfs-version <vers>" .
.TP
.B \-n " or " \-\-no-tcp
Don't advertise TCP for mount.
Specifies the port number used for RPC listener sockets.
If this option is not specified,
.B rpc.mountd
-chooses a random ephemeral port for each listener socket.
+will try to consult
+.IR /etc/services ,
+if gets port succeed, set the same port for all listener socket,
+otherwise chooses a random ephemeral port for each listener socket.
.IP
This option can be used to fix the port value of
.BR rpc.mountd 's