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PowerScale OneFS 9.8.0.0 Web Administration Guide

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Password file format

The file provider uses a binary password database file, spwd.db. You can generate a binary password file from a master.passwd-formatted file by running the pwd_mkdb command.

The master.passwd file contains ten colon-separated fields, as shown in the following example: 
admin:*:10:10::0:0:Web UI Administrator:/ifs/home/admin:/bin/zsh

The fields are defined below in the order in which they appear in the file.

NOTE:UNIX systems often define the passwd format as a subset of these fields, omitting the Class, Change, and Expiry fields. To convert a file from passwd to master.passwd format, add :0:0: between the GID field and the Gecos field.
Username
The user name. This field is case-sensitive. OneFS does not limit the length; many applications truncate the name to 16 characters, however.
Password
The user’s encrypted password. If authentication is not required for the user, you can substitute an asterisk (*) for a password. The asterisk character is guaranteed to not match any password.
UID
The UNIX user identifier. This value must be a number in the range 0-4294967294 that is not reserved or already assigned to a user. Compatibility issues occur if this value conflicts with an existing account's UID.
GID
The group identifier of the user’s primary group. All users are a member of at least one group, which is used for access checks and can also be used when creating files.
Class
This field is not supported by OneFS and should be left empty.
Change
OneFS does not support changing the passwords of users in the file provider. This field is ignored.
Expiry
OneFS does not support the expiration of user accounts in the file provider. This field is ignored.
Gecos
This field can store a variety of information but is usually used to store the user’s full name.
Home
The absolute path to the user’s home directory.
Shell
The absolute path to the user’s shell. If this field is set to /sbin/nologin, the user is denied command-line access.

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