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Index: H

handheld, as media type: E.6. Putting Everything Together

handler( ) subroutine: 4.2.5. The handler( ) Subroutine

handlers

ALRM signal: 6.10. Handling Server Timeout Cases and Working with $SIG{ALRM}

callbacks: 3.1.2. Activating Callback Hooks

content

converting mod_cgi script to: 6.7.2. Converting into a Perl Content Handler

converting to use mod_perl API: 6.7.3. Converting to use the mod_perl API and mod_perl-Specific Modules

creating: 2.7. A Simple mod_perl Content Handler

custom, performance compared to Apache::Registry: 13.1. Apache::Registry PerlHandler Versus Custom PerlHandler

disabling code on live servers and: 5.8.3.2. Disabling code running under other handlers

input arguments, processing: 13.2. Apache::args Versus Apache::Request::param Versus CGI::param

method: 25.1.5. Method Handlers

coding considerations: 6.12. Method Handlers: The Browse and See, Browse and View Example

enabling: 3.1.4. Enabling Extra Features

method handlers: 4.2.8. Perl Method Handlers

mod_perl

perl-script handler: 24.5.5.2. perl-script

response handler example: 24.5.5.3. A simple response handler example

modperl handler: 24.5.5.1. modperl

Perl: 1.4.2. mod_perl 1.0 and the mod_perl API

post-processing, terminating child processes: 6.4.1. exit( )

signal, trapping errors: 21.1.4. Displaying Errors to Users

stacked

enabled: 3.1.4. Enabling Extra Features

executing directives: 4.2.7. Stacked Handlers

testing: 2.7. A Simple mod_perl Content Handler

upgrading on live servers: 5.8.2.2.6. Moving files and restarting the server

handles, databases, singleton database handles: A.12. Singleton Database Handles

handling exceptions, XSP: E.3.4. Handling Exceptions

hanging processes

debugging, OS problems: 21.7.1. Hanging Because of an Operating System Problem

detecting: 21.7.3. Detecting Hanging Processes

diagnosing

interactive debugger: 21.7.4.3. Using the interactive debugger

Perl trace: 21.7.4.1. Using the Perl trace

system calls trace: 21.7.4.2. Using the system calls trace

reasons for: 21.7.2. When a Process Might Hang

tracking and terminating: 5.11.4. Tracking and Terminating Hanging Processes

hangman application, Template Toolkit: D.8. Hangman Application

CGI script: D.8.1. Hangman CGI Script

modular templates: D.8.2. Hangman with Modular Templates

plug-in module conversion: D.8.3. Hangman Plug-in

self-contained template: D.8.4. Self-Contained Hangman Template

hardware

bottleneck detection: 8.2.7. Detecting and Avoiding Bottlenecks

conflicts, solving: 8.2.8. Solving Hardware Requirement Conflicts

fault-tolerant CPU: 8.2.6. Getting a Fault-Tolerant CPU

Internet connection: 8.2.3. Getting a Fast Internet Connection

I/O performance tuning: 8.2.4. Tuning I/O Performance

memory, needs assessment: 8.2.5. How Much Memory Is Enough?

selecting: 8.2. Choosing the Right Hardware

site traffic and: 8.2.1. Machine Strength Demands According to Expected Site Traffic

strong machine versus many weak ones: 8.2.2. A Single Strong Machine Versus Many Weaker Machines

HASH access method, DBM: 19. DBM and mod_perl

HEAD requests: 16.4.3. HEAD Requests

header( ): 6.11. Generating Correct HTTP Headers

header files, APACHE_HEADER_INSTALL configuration parameter: 3.1.1. Controlling the Build Process

header parsing (Apache request processing): 1.4. Apache 1.3 Request Processing Phases

header template, Template Toolkit: D.4.1. Simple Template Example

headers

Accept-Language: 16.3. Content Negotiation

C source files, creating: 13.12.1. Building Perl Extensions with XS and h2xs

composition: 16. HTTP Headers for Optimal Performance

content

content-length header: 16.2.2. Content-Length Header

content-type header: 16.2.1. Content-Type Header

content headers, entity tags: 16.2.3. Entity Tags

content negotiation: 16.3. Content Negotiation

Vary header: 16.3.1. The Vary Header

Content-type: 1.1.2. The Common Gateway Interface Specification

date-related

cache-control header: 16.1.3. Expires and Cache-Control Headers

date header: 16.1.1. Date Header

Expires header: 16.1.3. Expires and Cache-Control Headers

last-modified: 16.1.2. Last-Modified Header

declining: 16.5. Avoiding Dealing with Headers

HTTP: 1.1.1. The HTTP Protocol

HTTP, generating: 6.11. Generating Correct HTTP Headers

MIME, generating: 1.1.2. The Common Gateway Interface Specification

hello user script: 1.1.2. The Common Gateway Interface Specification

hello world script: 1.1.2. The Common Gateway Interface Specification

help

options: 3.9.4. Making a Local Apache Installation

perldb: 21.5.6. Introduction to the Perl Debugger

High-Availability Linux Project web site: 5.12. References

history

CGI: 1.1. A Brief History of CGI

development of mod_perl 1.0: 1.3. The Development of mod_perl 1.0

htaccess file: 4.1.1. Configuration Files

HTML forms, GET and POST methods: 1.1.2. The Common Gateway Interface Specification

<html> tags, printing: 13.3. Buffered Printing and Better print( ) Techniques

HTTP headers, generating: 6.11. Generating Correct HTTP Headers

HTTP (HyperText Transfer Protocol)

overview: 1.1.1. The HTTP Protocol

status codes: F. HTTP Status Codes

HTTP request filters, I/O filtering: 25.3.1.2. HTTP request versus connection filters

HTTP request output filter: 25.3.4.3. Bucket brigade-based HTTP request output filter

HTTP request phases, mod_perl 2.0: 25.2.3. HTTP Request Phases

HTTP requests

GET requests: 16.4.1. GET Requests

conditional: 16.4.2. Conditional GET Requests

HEAD requests: 16.4.3. HEAD Requests

POST requests: 16.4.4. POST Requests

16.4.4. POST Requests

HTTP/1.1 standard web site: 1.5. References

httpd: 1.1. A Brief History of CGI

building: 2.2.2. Building mod_perl

processes, limiting: B.3.3. Apache::SizeLimit—Limit Apache httpd Processes

testing: 2.2.2. Building mod_perl

httpd accelerator mode (proxy servers): 12.5. Adding a Proxy Server in httpd Accelerator Mode

httpd executable, single-process mode, enabling: 21.5.9. Interactive mod_perl Debugging

httpd server, installation, multiple machines: 3.8. Installing mod_perl on Multiple Machines

httpd.conf: 4.1.1. Configuration Files

httpd_docs (two server approach): 12.3. One Plain and One mod_perl-Enabled Apache Server

building: 12.3.2.1. Building the httpd_docs server

configuring: 12.3.3.1. Basic httpd_docs server configuration

httpd_perl (two server approach): 12.3. One Plain and One mod_perl-Enabled Apache Server

building: 12.3.2.2. Building the httpd_perl server

configuring: 12.3.3.2. Basic httpd_perl server configuration

httpd.pid file: 5.3.3. Finding the Right Apache PID

httperf utility: 9.1.2. httperf

http_load utility: 9.1.3. http_load

HTTP::Monkeywrench utility: 9.1.4. Other Web Server Benchmark Utilities

HTTP::RecordedSession utility: 9.1.4. Other Web Server Benchmark Utilities

HTTP_USER_AGENT variable: 1.1.3. Apache CGI Handling with mod_cgi

HTTP::WebTest utility: 9.1.4. Other Web Server Benchmark Utilities

HUP signal: 5.3.1. kill Signals for Stopping and Restarting Apache

h2xs, creating modules: 13.12.1. Building Perl Extensions with XS and h2xs

HyperText Transfer Protocol (see HTTP)

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