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Zabbix Network Monitoring Essentials

Zabbix Network Monitoring Essentials

By : Andrea Dalle Vacche, Stefano Kewan Lee
4 (6)
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Zabbix Network Monitoring Essentials

Zabbix Network Monitoring Essentials

4 (6)
By: Andrea Dalle Vacche, Stefano Kewan Lee

Overview of this book

If you are an experienced network administrator looking for a comprehensive monitoring solution that will keep a watchful eye on networks, then this book is for you.
Table of Contents (9 chapters)
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Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
1. Installing a Distributed Zabbix Setup
1. Installing a Distributed Zabbix Setup
Zabbix architectures
Understanding Zabbix data flow
Understanding the Zabbix proxies' data flow
Installing Zabbix
Installing a database
Installing a Zabbix proxy
Installing the WebGUI interface
Summary
2
2. Active Monitoring of Your Devices
2. Active Monitoring of Your Devices
Understanding Zabbix hosts
Going beyond Zabbix agents
Summary
3
3. Monitoring Your Network Services
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3. Monitoring Your Network Services
Monitoring the DNS
Apache monitoring
NTP monitoring
Squid monitoring
Summary
4
4. Discovering Your Network
4. Discovering Your Network
Finding hosts the Zabbix way
Low-level discovery
Summary
5
5. Visualizing Your Topology with Maps and Graphs
5. Visualizing Your Topology with Maps and Graphs
Creating custom graphs
Maps – a quick setup for a large topology
Putting everything together with screens
Summary
6
A. Partitioning the Zabbix Database
MySQL partitioning
Housekeeping configuration
7
B. Collecting Squid Metrics
Squid metric script
8
Index
Index

Squid monitoring

Squid is the most diffused caching proxy for the Web. Squid supports HTTP, HTTPS, FTP, and many more protocols. This proxy software reduces a lot of the bandwidth required to serve its clients and improves the response time, implementing a very good caching system. For all those reasons, it is quite evident why you should have Squid to monitor inside your network.

There are two primary ways to acquire data and metrics from Squid:

  • Using SNMP
  • Using squidclient

If you're curious about the SNMP setup on the Squid server, you can have a look at the official documentation, in particular the section available at http://wiki.squid-cache.org/Features/Snmp.

We should avoid enabling SNMP on our Squid as it has been affected in the past by many overflows and issues. The last security issue, at the time of writing this, caused by SNMP enabled on Squid, is available at http://www.squid-cache.org/Advisories/SQUID-2014_3.txt, and as you can see, it is a really recent issue.

Fortunately...

End of Section 5
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