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This article will explain in detail how to install and configure Cacti. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

Introduction to Cacti

Cacti is a software implemented in PHP language. It uses snmp services to obtain data, uses rrdtool to store and update data, and uses rrdtool to generate charts and present them to users when they need to view the data. Therefore, snmp and rrdtool are the key to cacti. Snmp is related to data collection, and rrdtool is related to data storage and chart generation.

Mysql cooperates with PHP program to store some variable data and call it, such as hostname, host ip, snmp community name, port number, template information and other variables.

The data captured by snmp is not stored in mysql, but in the rrd file generated by rrdtool (in the rra folder of the cacti root directory). The update and storage of data by rrdtool is the processing of rrd files.

Main functions of Cacti

Graphical Analysis tool for Network Traffic Monitoring

How to use Cacti

Install rrdtool

CentOS-5:

Rpm-ivh http://apt.sw. Be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-2.el5.rf.i386.rpm

Yum install rrdtool-y

CentOS-6:

Rpm-ivh http://apt.sw.be/redhat/el6/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.i686.rpm

Yum install rrdtool-y

Install and configure net-snmp

1. Install net-snmp

Yum install net-snmp net-snmp-libs net-snmp-utils

2. Configure net-snmp

Modify:

View systemview included .1.3.6.1.2.1.1

Are:

View systemview included .1.3.6.1.2.1

3. Test net-snmp

# service snmpd start

# snmpwalk-v 1-c public localhost .1.3.6.1.2.1.1.1.0

SNMPv2-MIB::sysDescr.0 = STRING: Linux cronos 2.4.28 # 2 SMP ven jan 14 14:12:01 CET 2005 i686

Install LAMP

Yum install httpd php php-mysql php-snmp php-xml php-gd mysql mysql-server

Service httpd start

Service mysqld start

Mysqladmin-uroot password yourpassword

Mysqladmin-user=root-password reload

Install cacti

1. Download cacti

Cd / tmp

Wget http://www.cacti. Net/downloads/cacti-0.8.8a.tar.gz

Tar xzf cacti-0.8.8a.tar.gz

Mv cacti-0.8.8a / var/www/html/cacti

Cd / var/www/html/cacti

2. Create a database

Mysqladmin-- user=root-p create cacti

3. Import the database

Mysql-uroot-p cacti

Mysql-uroot-p mysql

Mysql > GRANT ALL ON cacti.* TO cactiuser@localhost IDENTIFIED BY 'cactipassword'

Mysql > flush privileges

5. Configure include/config.php

$database_type = "mysql"

$database_default = "cacti"

$database_hostname = "localhost"

$database_username = "cactiuser"

$database_password = "cactipassword"

/ * load up old style plugins here * /

$plugins = array ()

/ / $plugins [] = 'thold'

/ *

Edit this to point to the default URL of your Cacti install

Ex: if your cacti install as at http://serverip/cacti/ this

Would be set to / cacti/

, /

$url_path = "/ cacti/"

/ * Default session name-Session name must contain alpha characters * /

# $cacti_session_name = "Cacti"

6. Set directory permissions

Chown-R cactiuser rra/ log/

Cactiuser is the user that exists in the system, in order to collect data.

7. Configure scheduled tasks

Echo "* / 5 * cactiuser php / var/www/html/cacti/poller.php > / dev/null 2 > & 1" > / etc/crontab

Service crond restart

8. Complete the installation of cacti

1) enter: http://www.yourdomain. in the browser Com/cacti/

Default user name: admin password: admin

2) change the password

3) set the command path used by cacti

At this point, the installation is complete.

This is the end of the article on "how to install and configure Cacti". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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