Installation guide

SIA can be employed in base or enhanced security modes. By using the SIA
routines, the security commands access a matrix.conf file. Which
matrix.conf file is accessed depends on the security mode employed
(basic or enhanced) and the security mechanisms that are enabled through
SIA. This information is contained in the Security manual.
In the DIGITAL UNIX system, SIA routines, through the appropriate
matrix.conf file, also control the access and manipulation of both passwd
and group entries, employing several of the security-related programming
routines. See the Security manual for more information.
The DIGITAL UNIX login, su, and passwd commands, and xdm (the
workstation login box) use the SIA interfaces. The passwd and group
entries in the /etc/svc.conf file are provided in the DIGITAL UNIX
system for archival library (like those in the ULTRIX system) compatibility.
SIA log information is written to the /var/adm/sialog file, whenever the
sialog file is present and enabled.
If you want to manipulate password or group information, contact your
Digital Equipment Corporation representative for information on obtaining
SIA interface information.
1.2 Features Common to ULTRIX and DIGITAL UNIX
Systems
The DIGITAL UNIX system includes most features that are available on
typical UNIX systems, such as the ULTRIX system. In many cases, you use
the DIGITAL UNIX system in the same way that you use the ULTRIX
system. This section briefly describes the DIGITAL UNIX system features.
Differences between how DIGITAL UNIX features operate and how the
ULTRIX equivalent features operate are described in other chapters of this
manual.
1.2.1 User Applications, Commands, and Shells
The DIGITAL UNIX system has most of the user commands, such as grep,
who, man, and more, that are available on the ULTRIX system. In most
cases, you use the same command options and arguments on ULTRIX and
DIGITAL UNIX systems. The DIGITAL UNIX system also provides the vi
and ex text editors, among others (such as Emacs). The interfaces to the
editors are the same, so you need not learn new editing commands to edit
files on a DIGITAL UNIX system. Workstation applications that you use on
the ULTRIX system are also available on the DIGITAL UNIX system; for
example, the DIGITAL UNIX system provides the Bookreader software, the
Calendar and Clock software, and the visual differences program, dxdiff.
Introduction to Migrating from ULTRIX to DIGITAL UNIX Systems 1–5