Book Image

Zabbix: Enterprise Network Montioring Made Easy

By : Rihards Olups, Patrik Uytterhoeven, Andrea Dalle Vacche
Book Image

Zabbix: Enterprise Network Montioring Made Easy

By: Rihards Olups, Patrik Uytterhoeven, Andrea Dalle Vacche

Overview of this book

Nowadays, monitoring systems play a crucial role in any IT environment. They are extensively used to not only measure your system’s performance, but also to forecast capacity issues. This is where Zabbix, one of the most popular monitoring solutions for networks and applications, comes into the picture. With an efficient monitoring system in place, you’ll be able to foresee when your infrastructure runs under capacity and react accordingly. Due to the critical role a monitoring system plays, it is fundamental to implement it in the best way from its initial setup. This avoids misleading, confusing, or, even worse, false alarms that can disrupt an efficient and healthy IT department. This course is for administrators who are looking for an end-to-end monitoring solution. It will get you accustomed with the powerful monitoring solution, starting with installation and explaining the fundamentals of Zabbix. Moving on, we explore the complex functionalities of Zabbix in the form of enticing recipes. These recipes will help you to gain control of your infrastructure. You will be able to organize your data in the form of graphs and charts along with building intelligent triggers for monitoring your network proactively. Toward the end, you will gain expertise in monitoring your networks and applications using Zabbix. This Learning Path combines some of the best that Packt has to offer in one complete, curated package. It includes content from the following Packt products: Zabbix Network Monitoring-Second Edition Zabbix Cookbook Mastering Zabbix-Second Edition
Table of Contents (51 chapters)
Zabbix: Enterprise Network Montioring Made Easy
Zabbix: Enterprise Network Montioring Made Easy
Credits
Preface
6
Detecting Problems with Triggers
7
Acting upon Monitored Conditions
Bibliography
Index

Pre-shared key 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 will send some values to using zabbix_sender. For that to work, both 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 is not considered to be secret—it is not encrypted during the communication; do not put sensitive information in the identity string. The key is a hex string.

Note

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 are using.

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

$ openssl rand -hex 64

This will generate a 512-bit key, which we will use in a moment. Navigate to Configuration | Hosts, click on...