1 SFTP-SERVER(8) OpenBSD System Manager's Manual SFTP-SERVER(8)
4 sftp-server - SFTP server subsystem
7 sftp-server [-ehR] [-f log_facility] [-l log_level] [-u umask]
10 sftp-server is a program that speaks the server side of SFTP protocol to
11 stdout and expects client requests from stdin. sftp-server is not
12 intended to be called directly, but from sshd(8) using the Subsystem
15 Command-line flags to sftp-server should be specified in the Subsystem
16 declaration. See sshd_config(5) for more information.
20 -e Causes sftp-server to print logging information to stderr instead
21 of syslog for debugging.
24 Specifies the facility code that is used when logging messages
25 from sftp-server. The possible values are: DAEMON, USER, AUTH,
26 LOCAL0, LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7.
29 -h Displays sftp-server usage information.
32 Specifies which messages will be logged by sftp-server. The
33 possible values are: QUIET, FATAL, ERROR, INFO, VERBOSE, DEBUG,
34 DEBUG1, DEBUG2, and DEBUG3. INFO and VERBOSE log transactions
35 that sftp-server performs on behalf of the client. DEBUG and
36 DEBUG1 are equivalent. DEBUG2 and DEBUG3 each specify higher
37 levels of debugging output. The default is ERROR.
39 -R Places this instance of sftp-server into a read-only mode.
40 Attempts to open files for writing, as well as other operations
41 that change the state of the filesystem, will be denied.
44 Sets an explicit umask(2) to be applied to newly-created files
45 and directories, instead of the user's default mask.
47 For logging to work, sftp-server must be able to access /dev/log. Use of
48 sftp-server in a chroot configuration therefore requires that syslogd(8)
49 establish a logging socket inside the chroot directory.
52 sftp(1), ssh(1), sshd_config(5), sshd(8)
54 T. Ylonen and S. Lehtinen, SSH File Transfer Protocol,
55 draft-ietf-secsh-filexfer-00.txt, January 2001, work in progress
59 sftp-server first appeared in OpenBSD 2.8.
62 Markus Friedl <markus@openbsd.org>
64 OpenBSD 4.8 January 9, 2010 OpenBSD 4.8