User and Group Names in the File System (SFTP)

The string returned by the server should be of the format user@dns_domain.

Most UNIX systems do not have a concept of domains and will use user@localhost.

There are several special identifiers, which will be of the form user@. These are described in the following table.

Identifier	Description
OWNER@	The owner of the file.
GROUP@	The group associated with the file.
EVERYONE@	The world.
INTERACTIVE@	Accessed from an interactive terminal.
NETWORK@	Accessed via the network.
DIALUP@	Accessed as a dialup user to the server.
BATCH@	Accessed from a batch job
ANONYMOUS@	Accessed without any authentication.
AUTHENTICATED@	Any authenticated user (opposite of ANONYMOUS).
SERVICE@	Access from a system service.