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119 lines
3.3 KiB
Groff
119 lines
3.3 KiB
Groff
.\" $OpenBSD: sftp-server.8,v 1.17 2009/08/31 21:01:29 djm Exp $
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.\"
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.\" Copyright (c) 2000 Markus Friedl. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd $Mdocdate: August 31 2009 $
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.Dt SFTP-SERVER 8
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.Os
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.Sh NAME
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.Nm sftp-server
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.Nd SFTP server subsystem
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.Sh SYNOPSIS
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.Nm sftp-server
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.Op Fl eh
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.Op Fl f Ar log_facility
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.Op Fl l Ar log_level
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.Op Fl u Ar umask
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.Sh DESCRIPTION
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.Nm
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is a program that speaks the server side of SFTP protocol
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to stdout and expects client requests from stdin.
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.Nm
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is not intended to be called directly, but from
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.Xr sshd 8
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using the
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.Cm Subsystem
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option.
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.Pp
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Command-line flags to
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.Nm
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should be specified in the
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.Cm Subsystem
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declaration.
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See
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.Xr sshd_config 5
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for more information.
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.Pp
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Valid options are:
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.Bl -tag -width Ds
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.It Fl e
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Causes
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.Nm
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to print logging information to stderr instead of syslog for debugging.
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.It Fl f Ar log_facility
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Specifies the facility code that is used when logging messages from
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.Nm .
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The possible values are: DAEMON, USER, AUTH, LOCAL0, LOCAL1, LOCAL2,
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LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7.
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The default is AUTH.
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.It Fl h
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Displays
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.Nm
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usage information.
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.It Fl l Ar log_level
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Specifies which messages will be logged by
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.Nm .
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The possible values are:
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QUIET, FATAL, ERROR, INFO, VERBOSE, DEBUG, DEBUG1, DEBUG2, and DEBUG3.
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INFO and VERBOSE log transactions that
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.Nm
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performs on behalf of the client.
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DEBUG and DEBUG1 are equivalent.
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DEBUG2 and DEBUG3 each specify higher levels of debugging output.
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The default is ERROR.
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.It Fl u Ar umask
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Sets an explicit
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.Xr umask 2
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to be applied to newly-created files and directories, instead of the
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user's default mask.
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.El
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.Pp
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For logging to work,
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.Nm
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must be able to access
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.Pa /dev/log .
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Use of
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.Nm
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in a chroot configuration therefore requires that
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.Xr syslogd 8
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establish a logging socket inside the chroot directory.
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.Sh SEE ALSO
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.Xr sftp 1 ,
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.Xr ssh 1 ,
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.Xr sshd_config 5 ,
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.Xr sshd 8
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.Rs
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.%A T. Ylonen
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.%A S. Lehtinen
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.%T "SSH File Transfer Protocol"
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.%N draft-ietf-secsh-filexfer-00.txt
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.%D January 2001
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.%O work in progress material
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.Re
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.Sh HISTORY
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.Nm
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first appeared in
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.Ox 2.8 .
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.Sh AUTHORS
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.An Markus Friedl Aq markus@openbsd.org
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