4 .\" Copyright (C) 1999 Olaf Kirch <okir@monad.swb.de>
5 .TH rpc.mountd 8 "25 Aug 2000"
7 rpc.mountd \- NFS mount daemon
9 .BI "/usr/sbin/rpc.mountd [" options "]"
13 program implements the NFS mount protocol. When receiving a MOUNT
14 request from an NFS client, it checks the request against the list of
15 currently exported file systems. If the client is permitted to mount
18 obtains a file handle for requested directory and returns it to
20 .SS Exporting NFS File Systems
21 Making file systems available to NFS clients is called
24 Usually, a file system and the hosts it should be made available to
29 whenever the system is booted. The
31 command makes export information available to both the kernel NFS
36 Alternatively, you can export individual directories temporarily
42 For every mount request received from an NFS client,
46 file. When receiving an unmount request, that entry is removed.
47 user level part of the NFS service.
49 However, this file is mostly ornamental. One, the client can continue
50 to use the file handle even after calling
52 UMOUNT procedure. And two, if a client reboots without notifying
54 a stale entry will remain in
58 .B \-d kind " or " \-\-debug kind
59 Turn on debugging for kind.
61 .B \-F " or " \-\-foreground
62 Run in foreground (do not daemonize)
64 .B \-f " or " \-\-exports-file
65 This option specifies the exports file, listing the clients that this
66 server is prepared to serve and parameters to apply to each
69 By default, export information is read from
72 .B \-h " or " \-\-help
73 Display usage message.
75 .B \-o num " or " \-\-descriptors num
76 Set the limit of the number of open file descriptors to num. The
79 .B \-N " or " \-\-no-nfs-version
80 This option can be used to request that
82 do not offer certain versions of NFS. The current version of
84 can support both NFS version 2 and the newer version 3. If the
85 NFS kernel module was compiled without support for NFSv3,
87 must be invoked with the option
88 .B "\-\-no-nfs-version 3" .
90 .B \-n " or " \-\-no-tcp
91 Don't advertise TCP for mount.
94 Ignored (compatibility with unfsd??).
96 .B \-p " or " \-\-port
99 to bind to the specified port, instead of using the random port
100 number assigned by the portmapper.
102 .B \-V " or " \-\-nfs-version
103 This option can be used to request that
105 offer certain versions of NFS. The current version of
107 can support both NFS version 2 and the newer version 3.
109 .B \-v " or " \-\-version
114 .SH TCP_WRAPPERS SUPPORT
117 version is protected by the
119 library. You have to give the clients access to
121 if they should be allowed to use it. To allow connects from clients of
122 the .bar.com domain you could use the following line in /etc/hosts.allow:
126 You have to use the daemon name
128 for the daemon name (even if the binary has a different name).
130 For further information please have a look at the
144 .BR /var/lib/nfs/xtab .
146 Olaf Kirch, H. J. Lu, G. Allan Morris III, and a host of others.