1 .\" Copyright (c) 1989, 1991, 1993
2 .\" The Regents of the University of California. All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
10 .\" notice, this list of conditions and the following disclaimer in the
11 .\" documentation and/or other materials provided with the distribution.
12 .\" 4. Neither the name of the University nor the names of its contributors
13 .\" may be used to endorse or promote products derived from this software
14 .\" without specific prior written permission.
16 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 .\" @(#)mountd.8 8.4 (Berkeley) 4/28/95
44 .Op Ar exportsfile ...
48 utility is the server for
50 mount requests from other client machines.
51 It listens for service requests at the port indicated in the
53 server specification; see
54 .%T "Network File System Protocol Specification" ,
55 RFC1094, Appendix A and
56 .%T "NFS: Network File System Version 3 Protocol Specification" ,
59 The following options are available:
60 .Bl -tag -width indent
62 Allow the administrator to force clients to use only the
65 protocol to mount file systems from this server.
67 Output debugging information.
69 will not detach from the controlling terminal and will print
70 debugging messages to stderr.
74 to try and start the experimental server that includes NFSv4 support in it.
75 If this flag isn't specified, the experimental server will only be started
76 if it is linked into the kernel and the regular one isn't.
78 ie. The kernel is built with the following:
79 .Bd -literal -offset indent -compact
84 Specify specific IP addresses to bind to for TCP and UDP requests.
85 This option may be specified multiple times.
92 Note that when specifying IP addresses with
95 will automatically add
97 and if IPv6 is enabled,
103 requests to be logged.
105 Allow non-root mount requests to be served.
106 This should only be specified if there are clients such as PC's,
108 It will automatically clear the vfs.nfsrv.nfs_privport sysctl flag, which
109 controls if the kernel will accept NFS requests from reserved ports only.
113 to bind to the specified port, for both
118 This is typically done to ensure that the port which
120 binds to is a known quantity which can be used in firewall rulesets.
123 cannot bind to this port, an appropriate error will be recorded in
124 the system log, and the daemon will then exit.
126 Allow mount RPCs requests for regular files to be served.
127 Although this seems to violate the mount protocol specification,
128 some diskless workstations do mount requests for
129 their swapfiles and expect them to be regular files.
130 Since a regular file cannot be specified in
132 the entire file system in which the swapfiles resides
133 will have to be exported with the
137 Specify an alternate location
138 for the exports file.
139 More than one exports file can be specified.
145 it loads the export host addresses and options into the kernel
149 After changing the exports file,
150 a hangup signal should be sent to the
153 to get it to reload the export information.
154 After sending the SIGHUP
155 (kill \-s HUP `cat /var/run/mountd.pid`),
156 check the syslog output to see if
159 errors in the exports file.
163 detects that the running kernel does not include
165 support, it will attempt to load a loadable kernel module containing
175 .Bl -tag -width /var/run/mountd.pid -compact
177 the list of exported file systems
178 .It Pa /var/run/mountd.pid
179 the pid of the currently running mountd
180 .It Pa /var/db/mountdtab
181 the current list of remote mounted file systems
194 utility first appeared in