ULTRIX-32 Guide to System Environment Setup

This document, the "ULTRIX-32 Guide to System Environment Setup" (Version 3.0) by Digital Equipment Corporation, is a comprehensive manual for system administrators responsible for managing and maintaining an ULTRIX-32 operating system environment.

The guide details key system administration tasks, including:

• Modifying System Files: Explains the format and modification of crucial configuration files such as the password file (/etc/passwd), group file (/etc/group), terminal initialization file (/etc/ttys), file system table (/etc/fstab), sendmail aliases file (/usr/lib/aliases), clock daemon table (/usr/lib/crontab), and the message-of-the-day file (/etc/motd).
• User Management: Provides instructions on adding and deleting users using utilities like adduser and removeuser, with specific notes regarding Yellow Pages (YP) service.
• Device Management: Covers the process of adding terminals, pseudoterminals, disk drives, and tape drives using the MAKEDEV script, as well as setting up the system console.
• Print System Setup: Offers detailed guidance on configuring and managing printers, including manual setup and using the lprsetup utility, defining print system files (/etc/printcap, filters), and controlling print jobs (lpc, lpr, lpq, lprm).
• Software Subset Management: Describes how to list, load, add, delete, and verify software subsets using the setld program.
• System Performance Monitoring: Outlines methods for monitoring and managing system performance, including process scheduling priority (renice), generating system accounting information (user logins, command usage, printer usage with ac, sa, pac), and checking Interprocess Communications (IPC) facilities status (ipcs, ipcrm).
• Device Mnemonics: Includes an appendix listing mnemonics used with the MAKEDEV script for various hardware devices.

The guide assumes the reader is familiar with ULTRIX commands and system configuration concepts.