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User Name Standards
This document describes the standards for assigning user names and
UID numbers in CGE's AIX environment. A single standard has been
developed for use in standalone, High Availability, and Disaster
Recovery environments. This user naming standard provides the mechanism
to assign enterprise wide unique user names to all AIX users's and will
eliminate naming conflicts in the event of a manual or automated
failover, or if multiple instances of an application are running on a
single server.
Users are normally divided into two major categories on a Unix
system, administrators and normal users. Applications such as
databases, SAP, MQSeries, etc normally require an administration user
name and possibly a group name. With each new user created on a Unix
system a user ID number is assigned to that user, this user ID number is
referred to as the UID number and is normally unique to that user on
that one Unix system. When building highly available and/or recoverable
systems, the user name and UID number must be enterprise wide unique
values. Therefore a centralized user management system must be
implemented to manage users and UID numbers to ensure that no two users
have the same user name or UID number.
This centralized user management function is performed in CGE's
environment by LDAP. All user requests and assignments must be
performed through the centralized user management system via the LDAP
servers.
20060829: Policy Change requires the change
management number, used to request the addition of a user, be recorded
in the GECOS field when adding a user to a Unix system.
The format of the GECOS field shall exist
with the following structure:
ChangeManagementNumber , Country Code , Full User Name , Additional Info
15 char , 3 char , Variable Len , Variable Len
The detailed information for each component of the resource group
name is described below:
Change Management
Number
|
Country Code
|
Full User Name
|
Additional Info
|
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CHMN01234567890
|
usa = United States
ind = India
pol = Poland
|
Last Name, First Name
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Phone Number
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A typical record may appear in the "/etc/passwd" file as
follows:
french:!:635991:1:CHMN00002345678,usa,French,Dana,972.216.3179:/home/french:/usr/bin/ksh
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