Book Image

Zabbix 4 Network Monitoring - Third Edition

By : Patrik Uytterhoeven, Rihards Olups
Book Image

Zabbix 4 Network Monitoring - Third Edition

By: Patrik Uytterhoeven, Rihards Olups

Overview of this book

Zabbix 4 Network Monitoring is the perfect starting point for monitoring the performance of your network devices and applications with Zabbix. Even if you’ve never used a monitoring solution before, this book will get you up and running quickly. You’ll learn to monitor more sophisticated operations with ease and soon feel in complete control of your network, ready to meet any challenges you might face. Starting with the installation, you will discover the new features in Zabbix 4.0. You will then get to grips with native Zabbix agents and Simple Network Management Protocol (SNMP) devices. You will also explore Zabbix's integrated functionality for monitoring Java application servers and VMware. This book also covers notifications, permission management, system maintenance, and troubleshooting, so you can be confident that every potential challenge and task is under your control. If you're working with larger environments, you'll also be able to find out more about distributed data collection using Zabbix proxies. Once you're confident and ready to put these concepts into practice, you will understand how to optimize and improve performance. Troubleshooting network issues is vital for anyone working with Zabbix, so the book also helps you work through any technical snags and glitches you might face. By the end of this book, you will have learned more advanced techniques to fine-tune your system and make sure it is in a healthy state.
Table of Contents (25 chapters)

PSK encryption

Let's start with a simple situation, a single new host for which the Zabbix server will accept PSK-encrypted incoming connections only for the ones we'll send some values to using zabbix_sender. For that to work, both the Zabbix server and zabbix_sender must be compiled with TLS support. The PSK configuration consists of a PSK identity and key. The identity is some string that isn't considered to be secret; it isn't encrypted during the communication, so don't put sensitive information in the identity string. The key is a hexadecimal string.

Zabbix requires the key to be at least 32 characters (hexadecimal digits) long. The maximum in Zabbix is 512 characters, but it might depend on the specific version of the backend library you're using.

We could just type the key in manually, but a slightly easier method might be using the openssl...