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


In this chapter, we have provided you with a number of seemingly unconnected cases that you may or may not have the luck to face for real. We have quickly recapped on the most popular troubles with SSL/TLS certificates that webmasters encounter starting from the most embarrassing expiration to building a whole caching proxy for external insecure content. We have also described a number of cases with caching, URL rewriting rules migration, file-upload progress interfaces, and concluded with the mystery of an idle upstream. The next chapter is devoted to building a proper monitoring system for your Nginx-powered servers. We will move from solving problems to actively preventing them.