Oracle iPlanet Web Proxy Server 4.0.14 Performance Tuning, Sizing, and Scaling Guide


This guide discusses adjustments that you can make to improve the performance of Oracle iPlanet Web Proxy Server. The guide provides tuning, scaling, sizing tips and suggestions. It also provides possible solutions to common performance problems and data from scalability studies. It also addresses some configuration-specific and platform-specific issues.

This preface consists of the following sections:

Who Should Use This Book

This guide is intended for advanced administrators only. Be sure to read this guide and other relevant server documentation before making any changes.

How This Book Is Organized

This guide is divided into chapters. Each chapter addresses specific areas and tasks. The following table lists the chapters of the guide and their contents.

Table P–1 Guide Organization



Chapter 1, Performance and Monitoring Overview

This chapter provides a general discussion of server performance considerations, and more specific information about monitoring server performance. 

Chapter 2, Tuning Proxy Server

This chapter describes specific adjustments you can make that might improve iPlanet Web Proxy Server; performance. It provides an overview of Proxy Server's connection-handling process so that you can better understand the tuning settings. 

Chapter 3, Common Performance Problems

This chapter discusses common web site performance problems.

Chapter 4, Platform-Specific Issues and Tips

This chapter provides platform-specific tuning tips. 

Chapter 5, Sizing and Scaling Your Server

This chapter examines the subsystems of your server, and provides recommendations for optimal performance. 

Chapter 6, Scalability Studies

This chapter describes the results of scalability studies.  

The Proxy Server Documentation Set

The documentation set lists the Oracle documents that are related to Proxy Server. The URL for Proxy Server 4.0.14 documentation is For an introduction to Proxy Server, refer to the books in the order in which they are listed in the following table.

Table P–2 Proxy Server Documentation

Document Title 


Oracle iPlanet Web Proxy Server 4.0.14 Release Notes

The Proxy Server release:

  • Late-breaking information about the software and the documentation

  • New features

  • Supported platforms and environments

  • System requirements

  • Known issues and workarounds

Oracle iPlanet Web Proxy Server 4.0.14 Installation and Migration Guide

Performing installation and migration tasks: 

  • Installing Proxy Server

  • Migrating from version 3.6 to version 4

Oracle iPlanet Web Proxy Server 4.0.14 Administration Guide

Performing administration and management tasks: 

  • Using the administration and command-line interfaces

  • Configuring server preferences

  • Managing users and groups

  • Monitoring and logging server activity

  • Using certificates and public key cryptography to secure the server

  • Controlling server access

  • Proxying and routing URLs

  • Caching

  • Filtering content

  • Using a reverse proxy

  • Using SOCKS

Oracle iPlanet Web Proxy Server 4.0.14 Configuration File Reference

Editing configuration files 

Oracle iPlanet Web Proxy Server 4.0.14 NSAPI Developer’s Guide

Creating custom Netscape Server Application Programming Interface (NSAPI) plugins

Oracle iPlanet Web Proxy Server 4.0.14 Performance Tuning, Sizing, and Scaling Guide

Tuning Proxy Server to optimize performance  

Documentation Conventions

This section describes the following conventions used in Proxy Server documentation:

Typographic Conventions

The following table describes the typographic changes that are used in this book.

Table P–3 Typographic Conventions





The names of commands, files, and directories, and onscreen computer output 

Edit your .login file.

Use ls -a to list all files.

machine_name% you have mail.


What you type, contrasted with onscreen computer output 

machine_name% su



A placeholder to be replaced with a real name or value 

The command to remove a file is rm filename.


Book titles, new terms, and terms to be emphasized (note that some emphasized items appear bold online) 

Read Chapter 6 in the User's Guide.

A cache is a copy that is stored locally.

Do not save the file.

Symbol Conventions

The following table explains symbols that might be used in this book.

Table P–4 Symbol Conventions





[ ]

Contains optional arguments and command options. 

ls [-l]

The -l option is not required.

{ | }

Contains a set of choices for a required command option. 

-d {y|n}

The -d option requires that you use either the y argument or the n argument.

${ }

Indicates a variable reference. 


References the value of the com.sun.javaRoot variable.

Joins simultaneous multiple keystrokes. 


Press the Control key while you press the A key. 

Joins consecutive multiple keystrokes. 


Press the Control key, release it, and then press the subsequent keys. 


Indicates menu item selection in a graphical user interface. 

File -> New -> Templates 

From the File menu, choose New. From the New submenu, choose Templates. 

Shell Prompts in Command Examples

The following table shows default system prompts and superuser prompts.

Table P–5 Shell Prompts



C shell on UNIX and Linux systems 


C shell superuser on UNIX and Linux systems 


Bourne shell and Korn shell on UNIX and Linux systems 


Bourne shell and Korn shell superuser on UNIX and Linux systems 


Default Paths and File Names

The following table describes the default paths and file names used in Proxy Server documentation.

Table P–6 Default Paths and File Names



Default Value 


Represents the base installation directory for iPlanet Web Proxy Server. 

Solaris and Linux installations: $HOME/Oracle/Middleware/ProxyServer4

Windows installations: C:\Oracle\Middleware\ProxyServer4

Documentation, Support, and Training

The Oracle web site provides information about the following additional resources:

Searching Oracle Product Documentation

Besides searching Oracle product documentation from the docs.sun.comSM web site, you can use a search engine by typing the following syntax in the search field:


For example, to search for “proxy,” type the following:


To include other Oracle web sites in your search (for example,,, and, use in place of in the search field.

Third-Party Web Site References

Third-party URLs are referenced in this document and provide additional, related information.

Note –

Oracle is not responsible for the availability of third-party web sites mentioned in this document. Oracle does not endorse and is not responsible or liable for any content, advertising, products, or other materials that are available on or through such sites or resources. Oracle will not be responsible or liable for any actual or alleged damage or loss caused or alleged to be caused by or in connection with use of or reliance on any such content, goods, or services that are available on or through such sites or resources.