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.\" ========================================================================
.\"
.IX Title "nbdkit-nbd-plugin 1"
.TH nbdkit-nbd-plugin 1 "2019-01-26" "nbdkit-1.10.3" "NBDKIT"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
nbdkit\-nbd\-plugin \- nbdkit nbd plugin
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& nbdkit nbd socket=SOCKNAME [export=NAME]
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\f(CW\*(C`nbdkit\-nbd\-plugin\*(C'\fR is an \s-1NBD\s0 forwarding plugin for \fBnbdkit\fR\|(1).
.PP
It provides an \s-1NBD\s0 server that forwards all traffic as a client to
another existing \s-1NBD\s0 server.  A primary usage of this setup is to
alter the set of features available to the ultimate end client,
without having to change the original server (for example, to convert
between oldstyle and newstyle, or to add \s-1TLS\s0 support where the original
server lacks it).
.PP
For now, this is limited to connecting to another \s-1NBD\s0 server over a
named Unix socket without \s-1TLS,\s0 although it is feasible that future
additions will support network sockets and encryption.
.SH "PARAMETERS"
.IX Header "PARAMETERS"
.IP "\fBsocket=\fR\s-1SOCKNAME\s0" 4
.IX Item "socket=SOCKNAME"
Connect to the \s-1NBD\s0 server located at the Unix socket \f(CW\*(C`SOCKNAME\*(C'\fR.  The
server can speak either new or old style protocol.
.Sp
This parameter is required.
.IP "\fBexport=\fR\s-1NAME\s0" 4
.IX Item "export=NAME"
If this parameter is given, and the server speaks new style protocol,
then connect to the named export instead of the default export (the
empty string).
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBnbdkit\fR\|(1),
\&\fBnbdkit\-plugin\fR\|(3).
.SH "AUTHORS"
.IX Header "AUTHORS"
Eric Blake
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (C) 2017 Red Hat Inc.
.SH "LICENSE"
.IX Header "LICENSE"
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
.IP "\(bu" 4
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
.IP "\(bu" 4
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.
.IP "\(bu" 4
Neither the name of Red Hat nor the names of its contributors may be
used to endorse or promote products derived from this software without
specific prior written permission.
.PP
\&\s-1THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS\s0 ''\s-1AS IS\s0'' \s-1AND
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 RED HAT OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\s0 (\s-1INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES\s0; \s-1LOSS OF
USE, DATA, OR PROFITS\s0; \s-1OR BUSINESS INTERRUPTION\s0) \s-1HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT\s0 (\s-1INCLUDING NEGLIGENCE OR OTHERWISE\s0) \s-1ARISING IN ANY WAY OUT
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.\s0