ULTRIX-32 Guide to the Yellow Pages Service

This document, "ULTRIX-32 Guide to the Yellow Pages Service" (Order No. AA-ME00A-TE), is a technical manual published by Digital Equipment Corporation in 1987-1988 for the ULTRIX-32 Operating System, Version 3.0.

The guide provides introductory, setup, and troubleshooting information for the Yellow Pages (YP) Service. YP is a distributed database lookup service designed to maintain consistent network-wide administrative data (like hostnames, user accounts, and network services) across multiple systems within a domain, utilizing master and slave servers for availability and reliability.

The content covers:

• Introduction to YP: Explains YP concepts, naming domains, data storage, default YP files, and a quick reference to YP commands.
• Setting Up and Modifying YP: Detailed procedures for automatically and manually configuring YP master servers, slave servers, and clients, including instructions for modifying default data files, managing YP maps, and propagating changes.
• Maintaining and Managing YP: Discusses system security aspects, YP map access policies, and the use of netgroups for network-wide system and user management.
• Troubleshooting YP: Provides common problems and solutions for YP clients and servers.

The target audience is system and network managers familiar with ULTRIX operating system commands, configuration, naming conventions, and network basics.