The last is the number of concurrent mounts that we believe the client
has of that path.
.TP
-.BI "\-P," "" " \-\-state\-directory\-path " directory
+.BI "\-s," "" " \-\-state\-directory\-path " directory
specify a directory in which to place statd state information.
If this option is not specified the default of
.BR /var/lib/nfs
is used.
.TP
+.BI "\-r," "" " \-\-reverse\-lookup"
+mountd tracks IP addresses in the rmtab, and when a DUMP request is made (by
+someone running showmount -a, for instance), it returns IP addresses instead
+of hostnames by default. This option causes mountd to do a reverse
+lookup on each IP address and return that hostname instead. Enabling this can
+have a substantial negative effect on performance in some situations.
+.TP
+.BR "\-t N" " or " "\-\-num\-threads=N"
+This option specifies the number of worker threads that rpc.mountd
+spawns. The default is 1 thread, which is probably enough. More
+threads are usually only needed for NFS servers which need to handle
+mount storms of hundreds of NFS mounts in a few seconds, or when
+your DNS server is slow or unreliable.
+.TP
.B \-V " or " \-\-nfs-version
This option can be used to request that
.B rpc.mountd
Print the version of
.B rpc.mountd
and exit.
+.TP
+.B \-g " or " \-\-manage-gids
+Accept requests from the kernel to map user id numbers into lists of
+group id numbers for use in access control. An NFS request will
+normally (except when using Kerberos or other cryptographic
+authentication) contains a user-id and a list of group-ids. Due to a
+limitation in the NFS protocol, at most 16 groups ids can be listed.
+If you use the
+.B \-g
+flag, then the list of group ids received from the client will be
+replaced by a list of group ids determined by an appropriate lookup on
+the server. Note that the 'primary' group id is not affected so a
+.I newgroup
+command on the client will still be effective. This function requires
+a Linux Kernel with version at least 2.6.21.
.SH TCP_WRAPPERS SUPPORT
This
You have to use the daemon name
.B mountd
for the daemon name (even if the binary has a different name).
+.B Note:
+hostnames used in either access file will be ignored when
+they can not be resolved into IP addresses.
For further information please have a look at the
.BR tcpd (8)
and
.BR hosts_access (5)
manual pages.
-
.SH SEE ALSO
.BR rpc.nfsd (8),
.BR exportfs (8),