Network and application monitoring using Zabbix

Contents

  1. Introduction
  2. Prerequisites
  3. Zabbix server installation
  4. Zabbix agent installation

Introduction

Zabbix is software that monitors numerous parameters of a network and the health and integrity of servers. Zabbix uses a flexible notification mechanism that allows users to configure e-mail based alerts for virtually any event. This allows a fast reaction to server problems. Zabbix offers excellent reporting and data visualisation features based on the stored data. This makes Zabbix ideal for capacity planning.

Zabbix supports both polling and trapping. All Zabbix reports and statistics, as well as configuration parameters, are accessed through a web-based frontend. A web-based frontend ensures that the status of your network and the health of your servers can be assessed from any location. Properly configured, Zabbix can play an important role in monitoring IT infrastructure. This is equally true for small organisations with a few servers and for large companies with a multitude of servers.

In the following, i will show you how to install Zabbix suite on Ubuntu.

Prerequisites

Network and application monitoring tool: Zabbix 3.2
OS: Ubuntu 17.04
Database: PostgreSQL 9.x

Zabbix server installation

Install repository configuration package

Install the repository configuration package, which contains apt (software package manager) configuration files:

shell> sudo wget http://repo.zabbix.com/zabbix/3.2/ubuntu/pool/main/z/zabbix-release/zabbix-release_3.2-1+trusty_all.deb
shell> sudo dpkg -i zabbix-release_3.2-1+trusty_all.deb
shell> sudo apt-get update

 Install PostgreSQL

Install packages:

shell> sudo apt-get install postgresql postgresql-contrib

Create user (with password):

shell> sudo -u postgres psql
postgres#> createuser -P -s -e zabbix

Install server & frontend with PostgreSQL database

 Install packages:

shell> sudo apt-get install zabbix-server-pgsql php-pgsql zabbix-frontend-php

Install Ubuntu 17.04 php missing packages:

shell> sudo apt-get install php-bcmath php-mbstring php-xml

Create initial database:

shell> sudo psql -U zabbix -h localhost
psql> create database zabbix;
psql> \q

Then import initial schema and data:

shell> zcat /usr/share/doc/zabbix-server-pgsql/create.sql.gz | psql -U zabbix -h localhost zabbix

Configure database for server:

shell> sudo nano /etc/zabbix/zabbix_server.conf

by modifying the following:

DBHost=
DBName=zabbix
DBUser=zabbix
DBPassword=<user_password>

Start server process:

shell> service zabbix-server start

 Configure php for fronted:

 shell> sudo nano /etc/zabbix/apache.conf

it's necessary to uncomment the "date.timezone":

 php_value max_execution_time 300
php_value memory_limit 128M
php_value post_max_size 16M
php_value upload_max_filesize 2M
php_value max_input_time 300
php_value always_populate_raw_post_data -1
# php_value date.timezone Europe/Riga

As frontend configuration is done, you need to restart Apache web server:

shell> service apache2 restart

 Configure frontend

In your browser, open Zabbix URL: http://localhost/zabbix


Follow the steps from:

to complete installation (when entering details for connecting to the database, make sure to select PostgreSQL database type).

Zabbix agent installation

Install agent:

shell> sudo apt-get install zabbix-agent

Configure agent (server details, etc.):

shell> sudo nano /etc/zabbix/zabbix_agentd.conf

Start agent:

shell> service zabbix-agent start

Enjoy (ง°ل͜°)ง

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