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Nginx Essentials

Nginx Essentials

By : Kholodkov, Valery I Kholodkov
3.3 (6)
Buy this Book
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Nginx Essentials

Nginx Essentials

3.3 (6)
By: Kholodkov, Valery I Kholodkov
Buy this Book

Overview of this book

This book is ideal for skilled web masters and site reliability engineers who want to switch to Nginx or solidify their knowledge of Nginx. Knowledge of Unix and webmaster skills are required.
Table of Contents (8 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Getting Started with Nginx
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1. Getting Started with Nginx
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Installing Nginx
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Configuring Nginx
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Summary
2
2. Managing Nginx
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2. Managing Nginx
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The Nginx connection processing architecture
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Starting and stopping Nginx
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Control signals and their usage
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Distribution-specific startup scripts
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Allocating worker processes
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Setting up Nginx to serve static data
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Installing SSL certificates
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Managing temporary files
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Communicating issues to developers
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Summary
3
3. Proxying and Caching
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3. Proxying and Caching
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Nginx as a reverse proxy
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Setting up Nginx as a reverse proxy
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Caching
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Summary
4
4. Rewrite Engine and Access Control
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4. Rewrite Engine and Access Control
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The basics of the rewrite engine
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Access control
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Summary
5
5. Managing Inbound and Outbound Traffic
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5. Managing Inbound and Outbound Traffic
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Managing inbound traffic
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Managing outbound traffic
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Summary
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6. Performance Tuning
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6. Performance Tuning
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Optimizing static file retrieval
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Enabling response compression
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Optimizing buffer allocation
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Enabling SSL session reuse
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Worker processes allocation on multi-core systems
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Summary
7
Index
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Index

The Nginx connection processing architecture

Before you study the management procedures of Nginx, you need to get some idea of how Nginx processes connections. In the full-scale mode, a single Nginx instance consists of the master process and worker processes, as shown in the following figure:

The master process spawns worker processes and controls them by sending and forwarding signals and listening for quit notifications from them. Worker processes wait on listening sockets and accept incoming connections. The operating system distributes incoming connections among worker processes in a round-robin fashion.

The master process is responsible for all startup, shutdown, and maintenance tasks such as the following:

  • Reading and re-reading configuration files

  • Opening and reopening log files

  • Creating listening sockets

  • Starting and restarting worker processes

  • Forwarding signals to the worker processes

  • Starting a new binary

The master process thus ensures continuous operation of an Nginx instance in the...

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