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

NAME
     ssffttpp-sseerrvveerr - SFTP server subsystem

SYNOPSIS
     ssffttpp-sseerrvveerr [-ff logfacility] [-ll loglevel]

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

     Command-line flags to ssffttpp-sseerrvveerr should be specified in the SSuubbssyysstteemm
     declaration.  See sshdconfig(5) for more information.

     Valid options are:

     -ff logfacility
             Specifies the facility code that is used when logging messages
             from ssffttpp-sseerrvveerr.  The possible values are: DAEMON, USER, AUTH,
             LOCAL0, LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7.
             The default is AUTH.

     -ll loglevel
             Specifies which messages will be logged by ssffttpp-sseerrvveerr.  The pos-
             sible values are: QUIET, FATAL, ERROR, INFO, VERBOSE, DEBUG,
             DEBUG1, DEBUG2, and DEBUG3.  INFO and VERBOSE log transactions
             that ssffttpp-sseerrvveerr 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.

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

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

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

HISTORY
     ssffttpp-sseerrvveerr first appeared in OpenBSD 2.8.

AUTHORS     Markus Friedl 

BSD                            December 21, 2019                           BSD