Book Image

Cacti 0.8 Network Monitoring

Book Image

Cacti 0.8 Network Monitoring

Overview of this book

Cacti is a network monitoring tool that provides graphic solutions to your everyday monitoring issues. It has a wide variety of features and misusing them can mean that you are not monitoring your network as closely as you think. This book takes you through all of the key features of Cacti and shows how to use them for maximum effectiveness. This book will teach you how to use Cacti effectively to monitor your network through its web interface leaving aside all the heavy chunks of code. You will be introduced to all the features of Cacti in an easy-to-understand format. This book introduces Cacti and goes through its complete installation and setup. After a quick look, it will teach you to use Cacti's amazing graph templating and user management features. You will learn to customize graphs and make them better looking and easier to understand. It will teach you to provide the paths to any external script or command using Cacti. Then it will take you through importing and managing new templates and also customizing them. Creating users and assigning permissions to them is the next step in this book. Towards the end, you will learn to take backups and restore the system.
Table of Contents (13 chapters)

Chapter 6. NET-SNMP

We have read about Cacti in the first chapter—Cacti is a complete web-based front-end for RRDTool. It has built-in SNMP capabilities, capable of polling data from SNMP-enabled network-attached devices, and processing selected data to produce graph using the RRDTool engine. So, we must have a working knowledge on SNMP (Simple Network Management Protocol), otherwise it will be hard to implement and manage Cacti. In this chapter, we will understand the basic data structure of SNMP, its process, command line tools, MIB definition, and then, we will look into NET-SNMP—an application suite for SNMP and its implementation in Cacti-network monitoring tool.

What is SNMP?

SNMP stands for Simple Network Management Protocol. It is a component of the Internet Protocol Suite commonly known as TCP/IP, defined by Internet Engineering Task Force (IETF). Developed in 1988 to provide network-device-monitoring capability for TCP/IP-based networks, SNMP was approved as an internet standard...