SFTP-SERVER(8) BSD System Manager's Manual SFTP-SERVER(8)
sftp-server - SFTP server subsystem
sftp-server [-eh] [-f log_facility] [-l log_level] [-u umask]
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 intend- ed 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: -e Causes sftp-server to print logging information to stderr instead of syslog for debugging. -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. -h Displays sftp-server usage information. -l log_level Specifies which messages will be logged by sftp-server. The pos- sible values are: QUIET, FATAL, ERROR, INFO, VERBOSE, DEBUG, DE- BUG1, 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 configuration therefore requires that syslogd(8) establish a logging socket inside the chroot directory.
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.
sftp-server first appeared in OpenBSD 2.8.
Markus Friedl <firstname.lastname@example.org> MirOS BSD #10-current October 4, 2009 1
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