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 5. Troubleshooting Rare Specific Problems

The most interesting problems you may encounter with Nginx or any other piece of complex software (or any other human endeavor, for that matter) are usually firmly situated in the category of "Misc". This dreaded class of troubles contains everything that does not fall into other convenient classes that you as a reader and a professional spent time and efforts in previous chapters. Nginx is known for its stability and robustness, so you might never get a chance to encounter anything we describe here in your professional career. Still, in the spirit of "better safe than sorry", we would highly recommend reading the chapter just in case.

In this chapter, you will learn about the following topics:

  • Different security warnings that users may encounter on your websites and how to fix them

  • A couple of reasons why users may see very obsolete versions of web pages that were updated and how to fix such cases

  • Several curious configuration problems that...