235 lines
5.3 KiB
Groff
235 lines
5.3 KiB
Groff
.\" Copyright (c) 1989, 1991 The Regents of the University of California.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" from: @(#)nfsd.8 5.9 (Berkeley) 8/5/91
|
|
.\" $Id: nfsd.8,v 1.4 1993/08/01 07:38:43 mycroft Exp $
|
|
.\"
|
|
.Dd August 5, 1991
|
|
.Dt NFSD 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm nfsd
|
|
.Nd remote
|
|
.Tn NFS
|
|
server
|
|
.Sh SYNOPSIS
|
|
.Nm nfsd
|
|
.Op Fl r
|
|
.Bk -words
|
|
.Op Fl t Ar msk,mtch,hostadr1,hostadr2,...
|
|
.Ek
|
|
.Bk -words
|
|
.Op Fl u Ar msk,mtch,numprocs
|
|
.Ek
|
|
.Op Ar numprocs
|
|
.Sh DESCRIPTION
|
|
.Nm Nfsd
|
|
runs on a server machine to service
|
|
.Tn NFS
|
|
requests from client machines.
|
|
At least one
|
|
.Nm nfsd
|
|
must be running for a machine to operate as a server.
|
|
The options
|
|
.Fl u
|
|
and
|
|
.Fl t
|
|
are used to indicate which transport protocols are to be served.
|
|
.Pp
|
|
Options available to
|
|
.Nm nfsd :
|
|
.Bl -tag -width Ds
|
|
.It Fl r
|
|
Register the
|
|
.Tn NFS
|
|
service with
|
|
.Xr portmap 8
|
|
without creating any servers. This option can be used along with the
|
|
.Fl u
|
|
or
|
|
.Fl t
|
|
options to re-register NFS if the portmap server is restarted.
|
|
.It Fl t
|
|
Serve
|
|
.Tn TCP NFS
|
|
clients.
|
|
.It Fl u
|
|
Serve
|
|
.Tn UDP NFS
|
|
clients.
|
|
.El
|
|
.Pp
|
|
The following arguments to the
|
|
.Fl u
|
|
or
|
|
.Fl t
|
|
options are used to specify parameters for service using the respective
|
|
protocol:
|
|
.Bl -tag -width Ds
|
|
.It Ar msk , mtch
|
|
These arguments permit restriction of
|
|
.Tn NFS
|
|
services
|
|
to a subset of the host addresses. The
|
|
.Ar msk
|
|
and
|
|
.Ar mtch
|
|
are applied to the client host address as follows:
|
|
.Pp
|
|
.Bd -filled -offset indent -compact
|
|
if ((
|
|
.Ar host_address No \&& Em msk
|
|
) ==
|
|
.Ar mtch
|
|
)
|
|
.br
|
|
\- service the client request
|
|
.br
|
|
else
|
|
.br
|
|
\- drop the request
|
|
.Ed
|
|
.It Ar hostadr1 , ...
|
|
You may also specify zero or more specific host addresses to be accepted
|
|
as well as ones that pass the
|
|
.Ar msk , mtch
|
|
test above.
|
|
This may only be done for transport protocols that are connection based, such
|
|
as
|
|
.Tn TCP .
|
|
For the internet domain,
|
|
.Ar msk , mtch
|
|
and
|
|
.Ar hostadrs
|
|
are specified in internet
|
|
.Em dot
|
|
notation.
|
|
.It Ar numprocs
|
|
Specifies how many servers to fork off. This may only be specified for
|
|
non-connection based protocols such as
|
|
.Tn UDP .
|
|
.El
|
|
.Pp
|
|
If neither
|
|
.Fl u
|
|
or
|
|
.Fl t
|
|
are specified,
|
|
.Ar numprocs
|
|
servers for
|
|
.Tn UDP
|
|
accepting requests from all clients are started.
|
|
If
|
|
.Ar numprocs
|
|
is not specified, it defaults to 1.
|
|
.Pp
|
|
For example:
|
|
.Bd -literal
|
|
nfsd \-u 255.255.255.0,131.104.48.0,4 \-t \e
|
|
255.255.0.0,131.104.0.0,131.102.31.2
|
|
.Ed
|
|
.Bl -item -offset indent
|
|
.It
|
|
Serves
|
|
.Tn UDP
|
|
and
|
|
.Tn TCP
|
|
transports. For
|
|
.Tn UDP ,
|
|
it runs 4 daemons that accept requests
|
|
from any client on subnet 131.104.48.
|
|
For
|
|
.Tn TCP ,
|
|
it accepts connections from any client on network 131.104
|
|
plus the client with the address 131.102.31.2.
|
|
.El
|
|
.Bd -literal
|
|
nfsd \-u 255.255.240.0,131.104.0.0,6 \-t 0,0
|
|
.Ed
|
|
.Bl -item -offset indent
|
|
.It
|
|
Serves
|
|
.Tn UDP
|
|
and
|
|
.Tn TCP
|
|
transports.
|
|
For
|
|
.Tn UDP ,
|
|
it runs 6 daemons that accept requests from clients with
|
|
addresses in the range 131.104.0.x - 131.104.15.x.
|
|
For
|
|
.Tn TCP ,
|
|
it accepts connections from any client.
|
|
.El
|
|
.Pp
|
|
.Li nfsd \-u 0,0,4
|
|
.Bl -item -offset indent
|
|
.It
|
|
Serves any
|
|
.Tn UDP
|
|
client with 4 servers, only.
|
|
.El
|
|
.Pp
|
|
.Li nfsd 4
|
|
.Bl -item -offset indent
|
|
.It
|
|
Serves any
|
|
.Tn UDP
|
|
client with 4 servers, only. (Compatibility)
|
|
.El
|
|
.Pp
|
|
A server should typically run enough daemons to handle
|
|
the maximum level of concurrency from its clients,
|
|
typically four to six.
|
|
.Pp
|
|
.Nm Nfsd
|
|
listens for service requests at the port indicated in the
|
|
.Tn NFS
|
|
server specification; see
|
|
.%T "Network File System Protocol Specification" ,
|
|
RFC1094.
|
|
.Sh SEE ALSO
|
|
.Xr nfsstat 1 ,
|
|
.Xr nfssvc 2 ,
|
|
.Xr mountd 8 ,
|
|
.Xr portmap 8
|
|
.Sh BUGS
|
|
The client host address restrictions specified here are unrelated to
|
|
the mount restrictions specified in
|
|
.Pa /etc/exports
|
|
for
|
|
.Xr mountd 8 .
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
command is
|
|
.Ud .
|