Tru64 UNIX Technical Overview for Version 5.1B

This document is a Technical Overview for HP Tru64 UNIX Version 5.1B, published in September 2002. It serves as a comprehensive guide to the operating system's components and features.

The manual is structured into several key areas:

1. Introduction: Provides an overview of Tru64 UNIX, its product history (formerly DIGITAL UNIX, then DEC OSF/1), compliance with UNIX 98 standards (including threads, multibyte support, large files, dynamic linking), and a summary of product features and enhancements. It also lists optional components like TruCluster Server, Logical Storage Manager, and Developer's Toolkit, and details the system's packaging and licensing.
2. System Management: Covers installation processes (Full, Update, Cloning, Rolling Upgrade for clusters), system patching, various configuration utilities (SysMan Menu, SysMan Station, Quick Setup, Custom Setup), Logical Storage Manager (LSM) for disk management, performance and event management tools (HP Insight Manager, Compaq Analyze, Event Manager, DECevent), crash dump management, and hardware management utilities.
3. Networking: Describes the Internet Protocol suite (TCP/IP, UDP, IPv4, IPv6, including various application-layer protocols like DNS, FTP, SMTP, SNMP, and routing protocols like BGP, RIP, OSPF), supported network interface layers (ATM, Ethernet, FDDI, Token Ring, Serial Line IP, PPP, Link Aggregation, NetRAIN, VLAN), application programming interfaces (XTI, Sockets, STREAMS), and network administration software.
4. File Systems: Details different file systems supported, including Virtual File System (VFS), Advanced File System (AdvFS), UNIX File System (UFS), Cluster File System (CFS), Network File System (NFSv2, NFSv3, WebNFS), CD-ROM File System (CDFS), DVD File System, Memory File System (MFS), /proc, File-on-File Mounting, and File Descriptor File System.
5. Kernel & Core Components: Explores the Tru64 UNIX kernel, Symmetric Multiprocessing (SMP), Nonuniform Memory Access (NUMA), virtual memory subsystem (paging, swapping, Unified Buffer Cache), and device support.
6. Development Environment: Highlights features for developers, such as the Compaq C compiler, various debuggers (dbx, ladebug), profiling tools, shared and run-time libraries, Java Development Kit, thread support (POSIX Threads), memory-mapped file support, and a real-time programming environment.
7. Security: Outlines security mechanisms for identification, authentication, authorization (including IPsec, SSL, Kerberos), discretionary access controls (ACLs), an audit subsystem, object reuse, protected environments for trusted components, and integrity features.
8. Internationalization: Details support for multiple languages and locales (Unicode, UTF-8), codeset conversion, and specialized utilities for international software and input methods.
9. Windowing Environment: Describes the Common Desktop Environment (CDE), X Window System components, and the Motif Suite.
10. UNIX and Windows Interoperability: Covers solutions for seamless interaction between Tru64 UNIX and Windows environments, primarily through the Advanced Server for UNIX and ODBC/JDBC connectivity.

Additionally, it includes an appendix listing Internet (RFC) and non-RFC standards and a glossary of common UNIX and general computer terms.