1.\" Copyright (c) 1989, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 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.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" From: @(#)mountd.8 8.1 (Berkeley) 6/9/93 33.\" $Id: mountd.8,v 1.3 1995/02/22 21:42:48 ats Exp $ 34.\" 35.Dd September 22, 1994 36.Dt MOUNTD 8 37.Os 38.Sh NAME 39.Nm mountd 40.Nd service remote 41.Tn NFS 42mount requests 43.Sh SYNOPSIS 44.Nm /sbin/mountd 45.Op Fl nr 46.Op Ar exportsfile 47.Sh DESCRIPTION 48.Xr Mountd 49is the server for 50.Tn NFS 51mount requests from other client machines. 52.Xr Mountd 53listens for service requests at the port indicated in the 54.Tn NFS 55server specification; see 56.%T "Network File System Protocol Specification" , 57RFC1094, Appendix A and 58.%T "NFS: Network File System Version 3 Protocol Specification" , 59Appendix I. 60.Pp 61Options and operands available for 62.Nm mountd : 63.Bl -tag -width Ds 64.It Fl n 65The 66.Fl n 67option allows non-root mount requests to be served. 68This should only be specified if there are clients such as PC's, 69that require it. 70.It Fl r 71The 72.Fl r 73option allows mount RPCs requests for regular files to be served. 74Although this seems to violate the mount protocol specification, some diskless 75workstations do mount requests for their swapfiles and expect them to be 76regular files. Since a regular file cannot be specified in /etc/exports, the 77entire file system that the swapfiles reside in will have to be exported with 78the ``-alldirs'' flag. 79.It Ar exportsfile 80The 81.Ar exportsfile 82argument specifies an alternate location 83for the exports file. 84.El 85.Pp 86When mountd is started, 87it loads the export host addresses and options into the kernel 88using the mount(2) system call. 89After changing the exports file, 90a hangup signal should be sent to the mountd daemon 91to get it to reload the export information. 92After sending the SIGHUP 93(kill -HUP `cat /var/run/mountd.pid`), 94check the syslog output to see if mountd logged any parsing 95errors in the exports file. 96.Pp 97If 98.Nm mountd 99detects that the running kernel does not include 100.Tn NFS 101support, it will attempt to load a loadable kernel module containing 102.Tn NFS 103code, using 104.Xr modload 8 105by way of 106.Xr vfsload 3 . 107If this fails, or no 108.Tn NFS 109LKM was available, 110.Nm mountd 111exits with an error. 112.Sh FILES 113.Bl -tag -width /var/run/mountd.pid -compact 114.It Pa /etc/exports 115the list of exported filesystems 116.It Pa /var/run/mountd.pid 117the pid of the currently running mountd 118.It Pa /var/db/mountdtab 119the current list of remote mounted filesystems 120.El 121.Sh SEE ALSO 122.Xr nfsstat 1 , 123.Xr exports 5 , 124.Xr modload 8 , 125.Xr nfsd 8 , 126.Xr portmap 8 , 127.Xr showmount 8 128.Sh HISTORY 129The 130.Nm mountd 131utility first appeared in 4.4BSD. 132