21 tháng 1, 2016

How to Install Zabbix LTS (Network Monitoring Tool) on CentOS, RedHat and Fedora - Part 1

Zabbix is an open source software for networks and application monitoring. Zabbix provides agents to monitor remote hosts as well as Zabbix includes support for monitoring via SNMP, TCP and ICMP checks. Click here to know more about zabbix.
Zabbix-Monitoring
This article will help you to step by step install Zabbix 2.2 Server on CentOS/RHEL 7/6/5 and Fedora Systems. Before starting installation read below basic requirements to run Zabbix 2.2.
  • Apache: 1.3.12 or later.
  • PHP: 5.3.0 or later.
  • MySQL: 5.03 or later.
  • OpenIPMI: Required for IPMI support.
  • libssh2: Required for SSH support. Version 1.0 or higher.
  • fping: Required for ICMP ping items.
  • libcurl: Required for web monitoring.
  • libiksemel: Required for Jabber support.
  • net-snmp: Required for SNMP support.

Step 1: Set Up Apache, MySQL and PHP

In order to use Zabbix we required a Web Server, database server and PHP to work. In this steps we are going to set up these services, You many skip this step if you have already configured it.
Install All Services
# yum install httpd httpd-devel 
# yum install mysql mysql-server 
# yum install php php-cli php-common php-devel php-pear php-gd php-mbstring php-mysql php-xml
Start All Services
# service httpd start
# service mysqld start
MySQL Initial Setup
Run following command to setup mysql initially and secure it
# mysql_secure_installation

Step 2: Configure Yum Repository

Before installing Zabbix first configure zabbixzone rpm repository in our system using following commands.
CentOS/RHEL 7:
# rpm -Uvh http://repo.zabbix.com/zabbix/2.2/rhel/7/x86_64/zabbix-release-2.2-1.el7.noarch.rpm

CentOS/RHEL 6:
# rpm -Uvh http://repo.zabbix.com/zabbix/2.2/rhel/6/x86_64/zabbix-release-2.2-1.el6.noarch.rpm

CentOS/RHEL 5:
# rpm -Uvh http://repo.zabbix.com/zabbix/2.2/rhel/5/x86_64/zabbix-release-2.2-1.el5.noarch.rpm

Step 3: Install Zabbix Server with MySQL

Use following command to install Zabbix using mysql database support packages on your system.
# yum install zabbix-server-mysql zabbix-web-mysql zabbix-agent zabbix-java-gateway

Step 4: Setup Zabbix Apache Configuration

Zabbix creates its own apache configuration file /etc/httpd/conf.d/zabbix.conf. Edit this file and just update timezone. More timezone’s
  php_value date.timezone Asia/Kolkata
After changing value restart Apache service.
# service httpd restart

Step 4: Create Zabbix MySQL Database

This installation is using mysql as backend of zabbix, So we need to create MySQL database and User for zabbix installation.
# mysql -u root -p

mysql> CREATE DATABASE zabbix CHARACTER SET UTF8;
mysql> GRANT ALL PRIVILEGES on zabbix.* to 'zabbix'@'localhost' IDENTIFIED BY 'SECRET_PASSWORD';
mysql> FLUSH PRIVILEGES;
mysql> quit
After creating database restore the default mysql database provided by zabbix. These files can be found at /usr/share/doc/zabbix-server-mysql-<version>/create/ directory.
# mysql -u zabbix -p zabbix < /usr/share/doc/zabbix-server-mysql-2.2.8/create/schema.sql
# mysql -u zabbix -p zabbix < /usr/share/doc/zabbix-server-mysql-2.2.8/create/images.sql
# mysql -u zabbix -p zabbix < /usr/share/doc/zabbix-server-mysql-2.2.8/create/data.sql

Step 5: Start Zabbix Server

After completing above setup, let’s start Zabbix server using following command.
# service zabbix-server start
After starting zabbix service, let’s go to Zabbix web installer and finish the installation.

Step 5: Start Zabbix Web Installer

Zabbix web installer can be access using following url, Change FQDN as per you setup.
  http://svr1.tecadmin.net/zabbix/
and follow the steps as per given screen shots below.
Zabbix Setup Welcome Screen
This is welcome screen of zabbix web installer. Go forward by click on nextbutton.
Zabbix installation step 1
Check for pre-requisities
Check if your system have all required packages, if everything is ok click next.
Zabbix installation step 2
Configure DB Connection
Enter database details created in Step #4 and click Test Connection. If database connection is correct, it will show ok message. After that click next.
Zabbix installation step 3
Zabbix Server Details
Zabbix installation step 4
Pre-Installation Summary
This step will show the summary you have entered previous steps, so simply click next.
Zabbix installation step 5
Install Zabbix
Zabbix installation step 6
Zabbix Login Screen
Login to Zabbix using below default credentials.
   Username:  Admin
   Password:  zabbix
Zabbix installation step 7
Congratulation! Your Zabbix setup has been completed. 

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