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 secshd using the Subsystem option. See secshd for more information.
specifies an alternate starting directory for users. The pathname may contain the following tokens that are expanded at runtime: %% is replaced by a literal %, %d is replaced by the home directory of the user being authenticated, and %u is replaced by the username of that user. The default is to use the user's home directory. This option is useful in conjunction with the secshd ChrootDirectory option.
Causes sftp-server to print logging information to stderr instead of syslog for debugging.
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, and LOCAL7. The default is AUTH.
Displays sftp-server usage information.
Specifies which messages are logged by sftp-server. The possible 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.
Places this instance of sftp-server into a read-only mode. Attempts to open files for writing, as well as other operations that change the state of the filesystem, will be denied.
Sets an explicit umask to be applied to newly-created files and directories, instead of the user's default mask.
sftp-server first appeared in OpenBSD 2.8.
Markus Friedl <firstname.lastname@example.org>
All UNIX systems. Windows 8.1. Windows Server 2012 R2. Windows 10. Windows Server 2016. Windows Server 2019. Windows 11. Windows Server 2022.
PTC MKS Toolkit for System Administrators
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PTC MKS Toolkit for Interoperability
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T. Ylonen and S. Lehtinen, SSH File Transfer Protocol, draft-ietf-secsh- filexfer-00.txt, January 2001, work in progress material.
PTC MKS Toolkit 10.4 Documentation Build 39.