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.\" @(#)mountd.8 8.4 (Berkeley) 4/28/95 33.\" $Id: mountd.8,v 1.7 1997/02/22 14:33:02 peter Exp $ 34.\" 35.Dd April 28, 1995 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, 75some diskless workstations do mount requests for 76their swapfiles and expect them to be regular files. 77Since a regular file cannot be specified in 78.Pa /etc/exports , 79the entire file system in which the swapfiles resides 80will have to be exported with the 81.Fl alldirs 82flag. 83.It Ar exportsfile 84The 85.Ar exportsfile 86argument specifies an alternate location 87for the exports file. 88.El 89.Pp 90When mountd is started, 91it loads the export host addresses and options into the kernel 92using the mount(2) system call. 93After changing the exports file, 94a hangup signal should be sent to the mountd daemon 95to get it to reload the export information. 96After sending the SIGHUP 97(kill \-s HUP `cat /var/run/mountd.pid`), 98check the syslog output to see if mountd logged any parsing 99errors in the exports file. 100.Pp 101If 102.Nm mountd 103detects that the running kernel does not include 104.Tn NFS 105support, it will attempt to load a loadable kernel module containing 106.Tn NFS 107code, using 108.Xr modload 8 109by way of 110.Xr vfsload 3 . 111If this fails, or no 112.Tn NFS 113LKM was available, 114.Nm mountd 115exits with an error. 116.Sh FILES 117.Bl -tag -width /var/run/mountd.pid -compact 118.It Pa /etc/exports 119the list of exported filesystems 120.It Pa /var/run/mountd.pid 121the pid of the currently running mountd 122.It Pa /var/db/mountdtab 123the current list of remote mounted filesystems 124.El 125.Sh SEE ALSO 126.Xr nfsstat 1 , 127.Xr exports 5 , 128.Xr modload 8 , 129.Xr nfsd 8 , 130.Xr portmap 8 , 131.Xr showmount 8 132.Sh HISTORY 133The 134.Nm mountd 135utility first appeared in 136.Bx 4.4 . 137