add getopt(3); always display program name on error (use fatal());

[unix-history] / usr / src / sbin / nfsd / nfsd.8

diff --git a/usr/src/sbin/nfsd/nfsd.8 b/usr/src/sbin/nfsd/nfsd.8
index 4e69e46..d45d69f 100644 (file)
--- a/usr/src/sbin/nfsd/nfsd.8
+++ b/usr/src/sbin/nfsd/nfsd.8
@@ -1,46 +1,139 @@
 .\" Copyright (c) 1989 The Regents of the University of California.
 .\" All rights reserved.
 .\"
 .\" Copyright (c) 1989 The Regents of the University of California.
 .\" All rights reserved.
 .\"

-.\" Redistribution and use in source and binary forms are permitted
-.\" provided that the above copyright notice and this paragraph are
-.\" duplicated in all such forms and that any documentation,
-.\" advertising materials, and other materials related to such
-.\" distribution and use acknowledge that the software was developed
-.\" by the University of California, Berkeley.  The name of the
-.\" University may not be used to endorse or promote products derived
-.\" from this software without specific prior written permission.
-.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
-.\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+.\" %sccs.include.redist.man%

 .\"
 .\"

-.\"    @(#)nfsd.8      5.3 (Berkeley) %G%
+.\"    @(#)nfsd.8      5.6 (Berkeley) %G%

 .\"
 .TH NFSD 8 ""
 .UC 7
 .SH NAME
 nfsd \- remote NFS server
 .\"
 .TH NFSD 8 ""
 .UC 7
 .SH NAME
 nfsd \- remote NFS server

+.SH SYNOPSIS
+.B nfsd

 [
 [

-.B numservers
+.B \-u
+.I msk,mtch,numprocs
+]
+[
+.B \-t
+.I msk,mtch,hostadr1,hostadr2,...
+]
+[
+.I numprocs

 ]
 ]

-.SH SYNOPSIS
-.B /sbin/nfsd

 .SH DESCRIPTION
 .I Nfsd
 .SH DESCRIPTION
 .I Nfsd

-is the server for 
+runs on a server machine to service

 .SM NFS
 .SM NFS

-requests from other client machines.
-A host should typically run enough servers to handle
+requests from client machines.
+At least one
+.I nfsd
+must be running for a machine to operate as a server.
+The options
+.B \-u
+and
+.B \-t
+are used to indicate which transport protocols are to be served.
+.TP
+.B \-u
+Serve UDP NFS clients.
+.TP
+.B \-t
+Serve TCP NFS clients.
+.TP
+.I "msk, mtch"
+These arguments permit restriction of NFS services
+to a subset of the host addresses. The
+.I msk
+and
+.I mtch
+are applied to the client host address as follows:
+.sp
+if ((
+.I host_address
+&
+.I msk
+) ==
+.I mtch
+)
+.br
+   - service the client request
+.br
+else
+.br
+   - drop the request
+.TP
+.I hostadr1,...
+You may also specify zero or more specific host addresses to be accepted
+as well as ones that pass the
+.I msk, mtch
+test above.
+This may only be done for transport protocols that are connection based, such
+as TCP.
+For the internet domain,
+.I msk, mtch
+and
+.I hostadrs'
+are specified in internet
+.I dot
+notation.
+.TP
+.I numprocs
+Specifies how many servers to fork off. This may only be specified for
+non-connection based protocols such as UDP.
+.LP
+If neither
+.I \-u
+or
+.I \-t
+are specified,
+.I numprocs
+servers for UDP accepting requests from all clients are started.
+If
+.I numprocs
+is not specified, it defaults to 1.
+.LP
+For example:
+.sp
+nfsd \-u 255.255.255.0,131.104.48.0,4 \-t 255.255.0.0,131.104.0.0,131.102.31.2
+.IP "- "
+Serves UDP and TCP transports. For UDP,
+it runs 4 daemons that accept requests
+from any client on subnet 131.104.48.
+For TCP, it accepts connections from any client on network 131.104
+plus the client with the address 131.102.31.2.
+.LP
+nfsd \-u 255.255.240.0,131.104.0.0,6 \-t 0,0
+.IP "- "
+Serves UDP and TCP transports.
+For UDP, it runs 6 daemons that accept requests from clients with
+addresses in the range 131.104.0.x - 131.104.15.x.
+For TCP, it accepts connections from any client.
+.LP
+nfsd \-u 0,0,4
+.IP "- "
+Serves any UDP client with 4 servers, only.
+.LP
+nfsd 4
+.IP "- "
+Serves any UDP client with 4 servers, only. (Compatibility)
+.LP
+A server should typically run enough daemons to handle

 the maximum level of concurrency from its clients,
 typically four to six.
 the maximum level of concurrency from its clients,
 typically four to six.

+.PP

 .I Nfsd
 listens for service requests at the port indicated in the
 .SM NFS
 server specification; see
 .I Nfsd
 listens for service requests at the port indicated in the
 .SM NFS
 server specification; see

-``Network File System Protocol Specification''
-in the Sun Microsystems manual
-``Networking on the Sun Workstation'', Part #800-1324-03, Rev B.
+``Network File System Protocol Specification, RFC1094''

 .SH SEE ALSO
 .IR nfsstat (1),
 .IR nfssvc (2),
 .IR mountd (8),
 .IR portmap (8)
 .SH SEE ALSO
 .IR nfsstat (1),
 .IR nfssvc (2),
 .IR mountd (8),
 .IR portmap (8)

+.SH BUGS
+The client host address restrictions specified here are unrelated to
+the mount restrictions specified in /etc/exports for
+.IR mountd (8).