Book Image

Nginx Troubleshooting

By : Alexey Kapranov
Book Image

Nginx Troubleshooting

By: Alexey Kapranov

Overview of this book

Nginx is clearly winning the race to be the dominant software to power modern websites. It is fast and open source, maintained with passion by a brilliant team. This book will help you maintain your Nginx instances in a healthy and predictable state. It will lead you through all the types of problems you might encounter as a web administrator, with a special focus on performance and migration from older software. You will learn how to write good configuration files and will get good insights into Nginx logs. It will provide you solutions to problems such as missing or broken functionality and also show you how to tackle performance issues with the Nginx server. A special chapter is devoted to the art of prevention, that is, monitoring and alerting services you may use to detect problems before they manifest themselves on a big scale. The books ends with a reference to error and warning messages Nginx could emit to help you during incident investigations.
Table of Contents (15 chapters)
Nginx Troubleshooting
About the Author
About the Reviewers
Rare Nginx Error Messages

Chapter 1. Searching for Problems in Nginx Configuration

Nginx is a complex piece of software that will help you implement your own part of the World Wide Web—one of the killer applications of the Internet as a whole. Although seeming to be simple, the Web and the underlying HTTP have a lot of intricate details that may require special attention. Nginx gives you the power to pay that attention to those details by means of the extensive configuration language. Following the grand UNIX tradition of human-readable and writable text configuration files, Nginx expects a certain level of understanding and zeal from you so that it can serve in the best way possible. It also means that there is freedom and huge potential for mistakes.

The main goal of this chapter is to lead you through the way Nginx is configured and show you some of the areas that are prone to errors.

You will find further:

  • Configuration syntax with description and examples

  • Description of all files in the default configuration bundled with Nginx

  • Some mistakes you could make with examples from the default configuration and techniques to avoid them