Installation guide

system will run on DIGITAL UNIX systems when using an ULTRIX server,
as long as the ULTRIX system is Version 4.2 or higher. See Section 7.6.1
and Section B.18 for more information.
6.9.3 Naming Services
The DIGITAL UNIX system supports both the Berkeley Internet Name
Domain (BIND) service and the Network Information Services (NIS,
formerly YP) service. Both of these services are interoperable between
ULTRIX and DIGITAL UNIX systems. By itself, the BIND name service
allows you to distribute a host naming database. The NIS service can
distribute several different databases. BIND and NIS support equivalent
functions in the run-time library.
The Hesiod service, available on ULTRIX systems, is not supported by the
DIGITAL UNIX system. No Hesiod programming interfaces exist on
DIGITAL UNIX systems. See Section B.18 for more information.
6.10 Internationalization Features
An internationalized application allows users to interact with that
application in their native language. The application is also designed to
reflect the culture of the user’s region. For example, data such as dates and
monetary values are displayed or read as input in the style of that region.
The DIGITAL UNIX internationalization features are compatible with the
ANSI C, POSIX, and XPG4 specifications for an international programming
environment.
In addition to the ULTRIX internationalization features, the DIGITAL
UNIX internationalization features provide the following:
• Support for more locales
• Support for the LC_MESSAGES environment variable
• Internationalized library routines and system commands
Some differences exist between the ULTRIX and DIGITAL UNIX
internationalization features. The following sections give an overview of the
differences. For more information about the DIGITAL UNIX
internationalization features, see Writing Software for the International
Market and the i18n_intro command.
6.10.1 Message Catalog System
The message catalog system isolates program messages from the body of
your program. This isolation makes it easier for you to translate messages
Overview of the DIGITAL UNIX Programming Environment 6–19