Open System Services Management and Operations Guide (G06.30+, H06.08+, J06.03+)

The FTP server provides access in the following ways:
• Directly to the Guardian environment, when either of the following is true:
No initial working directory is configured for the user of the FTP client.◦
◦ An initial working directory with a name that begins with the characters /G/ is configured
for the user of the FTP client.
The FTP user must use an FTP client quote OSS command to gain access to the OSS
environment. (See the ftp(1) and ftpserver(7) reference pages either online or in
the Open System Services Shell and Utilities Reference Manual. The use of the quote OSS
command is also discussed in the TCP/IP Applications and Utilities User Guide.)
• Directly to the OSS environment, when an initial working directory in the OSS file system is
configured for the user of the FTP client. (The FTP user can use an FTP client quote guardian
command to gain access to the Guardian environment.)
• Anonymously, providing direct access to either the OSS environment or the Guardian
environment. An anonymous FTP user cannot use an FTP client quote OSS or
quote GUARDIAN command to gain access to the other environment.
User and User-Group Attributes
All NonStop operating system users can use either the Guardian environment or the OSS
environment. However, additional attributes should be configured for OSS environment users.
In the Guardian environment as well as the OSS environment, users and user groups can have the
following attributes:
• A user definition can belong to up to 32 user groups.
An administrative user group has a group number in the range 0 through 255.◦
◦ A file-sharing user group has a group number in the range 0 through 65535.
◦ A user definition can have a primary user group that is different from its administrative
user group.
• Each user definition has both a user name and a user ID.
A user name (sometimes called a logon name) has the form group-name.member-name.◦
◦ A user definition has a user ID that is unique within the NonStop node. The user ID is
usually represented:
– In the Guardian environment as the structured value pair group-number,
member-number.
The NonStop operating system predefines the user ID of the super ID as (255,255).
– In the OSS environment as a unique scalar value in the range 0 through 65535
called the UID.
The UID is equal to member-number + (256 * group-number).
The NonStop operating system predefines the UID of the super ID as 65535.
The UID value 65535 always has appropriate privileges in the OSS environment.
• A user definition can have aliases up to 32 characters long that can be used for login to the
system. An alias is created using the SAFECOM ADD ALIAS command and can have different
attributes (other than the UID) from those of the underlying user definition.
User and User-Group Attributes 205