.\" exportfs(8)
.\"
.\" Copyright (C) 1995 Olaf Kirch <okir@monad.swb.de>
-.\" Modifications 1999 Neil Brown <neilb@cse.unsw.edu.au>
-.TH exportfs 8 "7 Sep 1999"
+.\" Modifications 1999-2003 Neil Brown <neilb@cse.unsw.edu.au>
+.TH exportfs 8 "18 July 2003"
.SH NAME
exportfs \- maintain list of NFS exported file systems
.SH SYNOPSIS
.br
.BI "/usr/sbin/exportfs [-v]
.br
+.BI "/usr/sbin/exportfs -f"
+.br
.SH DESCRIPTION
The
.B exportfs
using
.BR exportfs .
.P
-Any export requests which identify a specific host (rather than a
+.B exportfs
+and it's partner program
+.B mountd
+work in one of two modes, a legacy mode which applies to 2.4 and
+earlier versions of the Linux kernel, and a new mode which applies to
+2.6 and later versions providing the
+.B nfsd
+virtual filesystem has been mounted at
+.BR /proc/fs/nfs .
+If this filesystem is not mounted in 2.6, the legacy mode is used.
+.P
+In the new mode,
+.B exportfs
+does not give any information to the kernel but only provides it to
+.B mountd
+through the
+.B /var/lib/nfs/xtab
+file.
+.B mountd
+will listen to requests from the kernel and will provide information
+as needed.
+.P
+In the legacy mode,
+any export requests which identify a specific host (rather than a
subnet or netgroup etc) are entered directly into the kernel's export
table as well as being written to
.BR /var/lib/nfs/xtab .
which are deleted from /etc/exports, and remove any entries from the
kernel export table which are no longer valid.
.TP
-.TP
.B -u
Unexport one or more directories.
.TP
+.B -f
+In 'new' mode, flush everything out of the kernels export table. Any
+clients that are active will get new entries added by
+.B mountd
+when they make their next request.
+.TP
.B -v
Be verbose. When exporting or unexporting, show what's going on. When
displaying the current export list, also display the list of export
projects / nfs-utils.git / blobdiff