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

Understanding trigger expressions


Triggers are quite simple to create and configure—choose a name and a severity, define a simple expression using the expression form, and you are done. The expression form, accessible through the Add button, lets you choose an item, a function to perform on the item's data, and some additional parameters and gives an output as shown in the following screenshot:

You can see how there's a complete item key specification, not just the name, to which a function is applied. The result is then compared to a constant using a greater than operator. The syntax for referencing item keys is very similar to that for a calculated item. In addition to this basic way of referring to item values, triggers also add a comparison operator that wraps all the calculations up to a Boolean expression. This is the one great unifier of all triggers; no matter how complex the expression, it must always return either a True value or a False value. This value is, of course, directly...