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SFTP-SERVER(8)		  BSD System Manager's Manual		SFTP-SERVER(8)

NAME
     sftp-server — SFTP server subsystem

SYNOPSIS
     sftp-server [-f log_facility] [-l log_level] [-u umask]

DESCRIPTION
     sftp-server is a program that speaks the server side of SFTP protocol to
     stdout and expects client requests from stdin.  sftp-server is not
     intended to be called directly, but from sshd(8) using the Subsystem
     option.

     Command-line flags to sftp-server should be specified in the Subsystem
     declaration.  See sshd_config(5) for more information.

     Valid options are:

     -f log_facility
	     Specifies the facility code that is used when logging messages
	     from sftp-server.	The possible values are: DAEMON, USER, AUTH,
	     LOCAL0, LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7.
	     The default is AUTH.

     -l log_level
	     Specifies which messages will be logged by sftp-server.  The pos‐
	     sible values are: QUIET, FATAL, ERROR, INFO, VERBOSE, DEBUG,
	     DEBUG1, DEBUG2, and DEBUG3.  INFO and VERBOSE log transactions
	     that sftp-server performs on behalf of the client.	 DEBUG and
	     DEBUG1 are equivalent.  DEBUG2 and DEBUG3 each specify higher
	     levels of debugging output.  The default is ERROR.

     -u umask
	     Sets an explicit umask(2) to be applied to newly-created files
	     and directories, instead of the user's default mask.

     For logging to work, sftp-server must be able to access /dev/log.	Use of
     sftp-server in a chroot configuation therefore requires that syslogd(8)
     establish a logging socket inside the chroot directory.

SEE ALSO
     sftp(1), ssh(1), sshd_config(5), sshd(8)

     T. Ylonen and S. Lehtinen, SSH File Transfer Protocol, draft-ietf-secsh-
     filexfer-00.txt, January 2001, work in progress material.

AUTHORS
     Markus Friedl ⟨markus@openbsd.org⟩

HISTORY
     sftp-server first appeared in OpenBSD 2.8 .

BSD				August 30, 2000				   BSD

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