About This Manual

This manual describes how to configure and manage the network interfaces and network services and solve problems that might arise on systems running the Tru64 UNIX^® operating system.

This manual assumes that the operating system and the appropriate networking subsets are installed.

Audience

This manual is intended for system and network adminstrators responsible for configuring and managing network services. Administrators should have knowledge of operating system concepts, commands, and configuration. They should also have knowledge of Transmission Control Protocol/Internet Protocol (TCP/IP) networking concepts and network configuration; this manual is not a TCP/IP networking tutorial.

New and Changed Features

This manual has been revised to include the following:

A section on configuring network adapters for automatic failover by using a Redundant Array of Independent Network Adapters (NetRAIN).

An updated chapter that describes how to configure the Dynamic Host Configuration Protocol (DHCP).

An appendix describing the format of DNS data file entries.

Several sections that were previously included in the Release Notes.

Organization

This manual is divided into 16 chapters, 10 appendixes, and an index. The following list describes the contents in more detail:

Chapter 1	Describes the meaning of network administration and the components covered in this manual.
Chapter 2	Describes the tasks to administer the basic network connections.
Chapter 3	Describes the tasks to administer the Dynamic Host Configuration Protocol (DHCP).
Chapter 4	Describes the tasks to administer point-to-point connections.
Chapter 5	Describes the tasks to administer Local Area Transport (LAT).
Chapter 6	Describes the tasks to administer the Domain Name Service (DNS).
Chapter 7	Describes the tasks to administer the Network Information Service (NIS).
Chapter 8	Describes the tasks to administer the Network File System (NFS).
Chapter 9	Describes the tasks to administer the UNIX-to-UNIX Copy Program (UUCP).
Chapter 10	Describes the tasks to administer the Network Time Protocol (NTP).
Chapter 11	Describes the tasks to administer the mail environment.
Chapter 12	Describes the Simple Network Management (SNMP) environment.
Chapter 13	Describes how to solve network and network service problems.
Chapter 14	Describes the various diagnostic tests available to help solve problems.
Chapter 15	Describes how to test DNS servers and resolve DNS server problems.
Chapter 16	Describes how to report your problem to Compaq and the information you should provide.
Appendix A	Contains the Configuration Worksheet. Copy this appendix and fill in the information before completing the tasks described in this manual.
Appendix B	Describes how to monitor the Ethernet, Fiber Distributed Data Interface (FDDI), and token ring network interfaces by using the `netstat` command.
Appendix C	Describes how to write `automount` maps.
Appendix D	Contains two scripts you can copy for adding NIS slave servers to and removing NIS slave servers from an NIS domain.
Appendix E	Contains NFS client error messages and describes possible solutions.
Appendix F	Contains `uucp` error messages and describes possible solutions.
Appendix G	Contains `sendmail` error messages and describes possible solutions.
Appendix H	Describes the Tru64 UNIX host MIB implementation, including sample data.
Appendix I	Contains a worksheet for recording information as you solve DNS server problems.
Appendix J	Describes the format of DNS file entries.

Related Documents

For more information about Tru64 UNIX networking and communications, see the following books:

Command and Shell User's Guide
Introduces users to the basic uses of commands and shells in the operating system.

JOIN Server Administrator's Guide by Join Systems, Inc.
Provides more detailed information about implementing the Dynamic Host Configuration Protocol in your network. This document can be accessed by opening the following file with a web browser:
```
/usr/doc/join/TOC.html
```

Sendmail Installation and Operation Guide
Provides additional information about using the sendmail command. This HTML document is available at the following URL:
```
http://uwsg.ucs.indiana.edu/usail/mail/op/op.html
```

The sendmail guide by O'Reilly & Associates
Provides additional information about using the sendmail command.

The printed version of the Tru64 UNIX documentation set is color coded to help specific audiences quickly find the books that meet their needs. (You can order the printed documentation from Compaq.) This color coding is reinforced with the use of an icon on the spines of books. The following list describes this convention:

Audience	Icon	Color Code
General users	G	Blue
System and network administrators	S	Red
Programmers	P	Purple
Device driver writers	D	Orange
Reference page users	R	Green

Some books in the documentation set help meet the needs of several audiences. For example, the information in some system books is also used by programmers. Keep this in mind when searching for information on specific topics.

The Documentation Overview provides information on all of the books in the Tru64 UNIX documentation set.

Reader's Comments

Compaq welcomes any comments and suggestions you have on this and other Tru64 UNIX manuals.

You can send your comments in the following ways:

Fax: 603-884-0120 Attn: UBPG Publications, ZKO3-3/Y32

Internet electronic mail: readers_comment@zk3.dec.com
A Reader's Comment form is located on your system in the following location:
```
/usr/doc/readers_comment.txt
```

Mail:
Compaq Computer Corporation
UBPG Publications Manager
ZKO3-3/Y32
110 Spit Brook Road
Nashua, NH 03062-9987

A Reader's Comment form is located in the back of each printed manual. The form is postage paid if you mail it in the United States.

Please include the following information along with your comments:

The full title of the book and the order number. (The order number is printed on the title page of this book and on its back cover.)

The section numbers and page numbers of the information on which you are commenting.

The version of Tru64 UNIX that you are using.

If known, the type of processor that is running the Tru64 UNIX software.

The Tru64 UNIX Publications group cannot respond to system problems or technical support inquiries. Please address technical questions to your local system vendor or to the appropriate Compaq technical support office. Information provided with the software media explains how to send problem reports to Compaq.

Conventions

This document uses the following typographic conventions:

% $: A percent sign represents the C shell system prompt. A dollar sign represents the system prompt for the Bourne, Korn, and POSIX shells.
#: A number sign represents the superuser prompt.
% cat: Boldface type in interactive examples indicates typed user input.
file: Italic (slanted) type indicates variable values, placeholders, and function argument names.
[ | ] { | }: In syntax definitions, brackets indicate items that are optional and braces indicate items that are required. Vertical bars separating items inside brackets or braces indicate that you choose one item from among those listed.
colored text: In syntax definitions, literal elements are colored green. Variable values, placeholders, and function argument names are colored red. No special colored text is used outside of syntax descriptions.
. . .: In syntax definitions, a horizontal ellipsis indicates that the preceding item can be repeated one or more times.
cat(1): A cross-reference to a reference page includes the appropriate section number in parentheses. For example, cat(1) indicates that you can find information on the cat command in Section 1 of the reference pages.
[Return]: In an example, a key name enclosed in a box indicates that you press that key.
[Ctrl/x]: This symbol indicates that you hold down the first named key while pressing the key or mouse button that follows the slash. In examples, this key combination is enclosed in a box (for example, [Ctrl/C] ).