Preface

About this guide

This guide provides information to help you plan the configuration of NetCache^TM appliances running NetCache 5.4 software. It provides information for the following supported NetCache platforms: C1100, C1105, C1200, C2100, C3100, and C6100.

For information about how to upgrade or service the system hardware, see the Field Service Guide for your NetCache appliance model.

Audience

This guide is for system administrators who are familiar with computer networks, Web technology, and HTTP service. This guide assumes that customers planning to use the NetCache appliance as a news cache have a basic understanding of NNTP and news service. This guide also assumes that customers planning to use the NetCache appliance as a streaming media cache have a basic understanding of RTSP, MMS, and streaming media service. This guide does not cover basic system administration topics such as IP addressing, routing, and network topology. It emphasizes the characteristics of the NetCache appliance hardware and the NetCache software.

Command and keyboard conventions

You can enter NetCache appliance commands on either the system console or from any client computer that can access the NetCache appliance through Telnet.

When describing key combinations, this guide uses the hyphen (-) to separate individual keys. For example, "Ctrl-D" means pressing the "Control" and "D" keys simultaneously.

This guide uses the term "type" to mean pressing one or more keys on the keyboard. It uses the term "enter" to mean pressing one or more keys and then Enter. Also, this guide uses the term "Enter" to refer to the key that generates a carriage return, although the key is named "Return" on some keyboards.

This guide uses capitalization and some abbreviations to refer to the keys on the keyboard. (The keys on your keyboard might not be labeled exactly as they are in this guide.)

Formatting conventions

The following table describes typographical conventions used in this guide.

Formatting convention	Type of information
Italic type	Words or characters that require special attention. Placeholders for information you must supply. For example, if the guide says to enter the `arp` `-d hostname` command, you enter the characters "arp -d" followed by the actual name of the host. Book titles in cross-references.
`Monospaced` font	Command and daemon names. Information displayed on the system console or other computer monitors. The contents of files.
`Bold monospaced` font	Words or characters you type. What you type is always shown in lowercase letters, unless it must be typed in uppercase letters to work properly.

Formatting convention

Type of information

Italic type

Words or characters that require special attention.

Placeholders for information you must supply. For example, if the guide says to enter the arp -d hostname command, you enter the characters "arp -d" followed by the actual name of the host.

Book titles in cross-references.

Monospaced font

Command and daemon names.

Information displayed on the system console or other computer monitors.

The contents of files.

Bold monospaced font

Words or characters you type. What you type is always shown in lowercase letters, unless it must be typed in uppercase letters to work properly.