In this tutorial I will walk through on how to install cacti on linux Redhat / CentOS systems. This is very simple and straight forward. All you have to do is make sure that the required software’s are installed. I will also guide you through a couple of errors I have seen while performing the installation.(In a different post)

NOTE:- Please install Apache before moving forward.(yum install httpd)

Step 1
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Download Cacti, I downloaded it from Cacti website. You can also do the same from HERE

Version of Cacti I am using here is 0.8.8b which is a stable version. Make sure you download stable version of cacti.

Change directory to /var/www/html location. I used wget command to directly download the packageto my Linux machine

Step 2

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Gunzip and Untar the package in your /var/www/html location and you will see the list of files in the directory.
I am renaming the folder cacti-0.8.8b to cacti.

Step 3

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If you don’t have the below software’s installed please use YUM to install them

yum install net-snmp net-snmp-utils rrdtool
yum install php-snmp
yum install php-mysql php-pear php-common php-gd php-devel php php-mbstring mysql

Step 4

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Configure the database, Create MYSQL Database & User for cacti, Grant all privileges.

mysql> CREATE DATABASE cactidb;
Query OK, 1 row affected (0.00 sec)

mysql> CREATE USER 'cactiuser'@'localhost' IDENTIFIED BY 'pwd123';
Query OK, 0 rows affected (0.01 sec)

mysql> GRANT ALL PRIVILEGES ON cactidb.* TO 'cactiuser'@'localhost';
Query OK, 0 rows affected (0.00 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

Edit file /var/www/html/cacti/include/config.php
Change the values according to your Mysql settings

/* make sure these values reflect your actual database/host/user/password */
$database_type = "mysql";
$database_default = "cactidb";
$database_hostname = "localhost";
$database_username = "cactiuser";
$database_password = "pwd123";
$database_port = "3306";
$database_ssl = false;

Now upload cacti.sql to the database, Go to /var/www/html/cacti directory and run the command below

[[email protected] cacti]# mysql -u cactiuser -p cactidb < cacti.sql Enter password: [[email protected] cacti]# [/php]

Step 5

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Configure your Apache / HTTP server to load cacti URL for your IP Address ONLY, I am using Apache 2.4 hence there will be slight difference in the configuration. Will not be using the regular ORDER ALLOW, DENY (Apache 2.2)
Edit your configuration (HTTPD.CONF)

<Directory /var/www/html/cacti >         
# httpd 2.4 YOUR IP ADDRESS GOES HERE
Require ip xx.xxx.xxx.xx
</Directory>

Step 6

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Go to http:///cacti and start the installation.

You should see that all these values are correct and in GREEN with string [FOUND] as shown below

Your screen values might be different. Don’t worry about that.

Once you verified the values, Click FINISH.

After this you will see an authentication page use admin / admin as username and password. Then you will get an option to create a new password. That is all. You are all set and you will see a home page like the one below.

I will be adding another tutorial which explains How to add a new host to Cacti? soon.

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