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\" @(#)mountd.8 8.4 (Berkeley) 4/28/95
\"
Dd February 16, 2021
Dt MOUNTD 8
Os
Sh NAME
Nm mountd
Nd service remote
Tn NFS
mount requests
Sh SYNOPSIS
Nm
Op Fl dN
Op Fl P Ar policy
Op Fl p Ar port
Op Ar exportsfile ...
Sh DESCRIPTION
Nm
is the server for
Tn NFS
mount requests from other client machines.
Pp
Nm
makes all filesystems listed in
Xr exports 5
available to
Tn NFS
clients, and then listens for mount service requests at the port
indicated in the
Tn NFS
server specification; see
%T "Network File System Protocol Specification" ,
RFC 1094, Appendix A, and
%T "NFS: Network File System Version 3 Protocol Specification" ,
Appendix I.
Pp
Options and operands available for
Nm mountd :
Bl -tag -width Fl
It Fl d
Enable debugging mode.
Nm
will not detach from the controlling terminal and will print
debugging messages to stderr.
It Fl N
Do not require privileged ports for mount or NFS RPC calls.
This option is equivalent to specifying
Ql -noresvport -noresvmnt
on every export.
See
Xr exports 5
for more information.
Some operating systems (notably Mac OS X) require this option.
It Fl P Ar policy
IPsec
Ar policy
string,
as described in
Xr ipsec_set_policy 3 .
Multiple IPsec policy strings may be specified by using a semicolon as
a separator.
If conflicting policy strings are found in a single line,
the last string will take effect.
If an invalid IPsec policy string is used
Nm
logs an error message and terminates itself.
It Fl p Ar port
Force
Nm
to bind to the given port.
If this option is not given,
Nm
may bind to every anonymous port
(in the range 600\^\(en1023) which causes trouble when trying to use
NFS through a firewall.
It Ar exportsfile
The
Ar exportsfile
argument specifies an alternative location
for the
Xr exports 5
file.
Multiple exports files can be defined.
El
Pp
When
Nm
is started,
it loads the export host addresses and options into the kernel
using the
Xr nfssvc 2
system call.
After changing the exports file,
a hangup signal should be sent to the
Nm
daemon to get it to reload the export information.
After sending the
Dv SIGHUP
Pp
Dl kill \-s HUP $(cat /var/run/mountd.pid)
Pp
check the syslog output to see if
Nm
logged any parsing errors in the exports file.
Pp
After receiving
Dv SIGTERM ,
Nm
sends a broadcast request to remove the mount list from all the clients.
This can take a long time, since the broadcast request waits for each
client to respond.
Sh FILES
Bl -tag -width ".Pa /var/run/mountd.pid" -compact
It Pa /etc/exports
the list of exported filesystems
It Pa /var/run/mountd.pid
the pid of the currently running
Nm
It Pa /var/db/mountdtab
the list of remotely mounted filesystems
El
Sh SEE ALSO
Xr nfsstat 1 ,
Xr nfssvc 2 ,
Xr ipsec_set_policy 3 ,
Xr exports 5 ,
Xr nfsd 8 ,
Xr rpcbind 8 ,
Xr showmount 8
Sh HISTORY
The
Nm
utility first appeared in
Bx 4.4 .