Live Experience

Cacti on Redhat and Fedora

Cacti is a complete frontend to RRDTool, it stores all of the necessary information to create graphs and populate them with data in a MySQL database. The frontend is completely PHP driven. Along with being able to maintain Graphs, Data Sources, and Round Robin Archives in a database, cacti handles the data gathering. There is also SNMP support for those used to creating traffic graphs with MRTG.
Cacti requirement:
Required Packages for RPM-based Operating Systems
    * httpd
    * php
    * php-mysql
    * php-snmp
    * mysql
    * mysql-server
    * net-snmp 
use same virsion  php-snmp and php. (Example: php-snmp-4.3.9-3.1.i386 and php-4.3.9-3.1)
use rrdtools rrdtool-1.2.30-2.el4.pp.i386 or greater
MySQL configuration for cacti:
[root:~]# mysql
mysql> create database cacti;
mysql> grant all on cacti.* to root;
mysql> grant all on cacti.* to root@localhost;
mysql> grant all on cacti.* to cactiuser;
mysql> grant all on cacti.* to cactiuser@localhost;
mysql> set password for cactiuser@localhost=password('');
mysql> flush privileges;
mysql> exit
RRDTool Installation:
Download and setup cacti:
[root:~]# groupadd cacti
[root:~]# useradd -g cacti cactiuser
[root:~]# tar -zxvf cacti*
[root:~]# mv cacti-0.8.xx /home/cactiuser/cacti
[root:~]# cd /home/cactiuser/cacti
[root:~]# mysql --user=root  cactidb < cacti.sql
[root:~]# chown -R cactiuser rra/ log/
Make the proper changes for database and database password:
[root:~]# vi /include/config.php
$database_defaut = “cacti”;
$database_hostname = “localhost”;
$database_username = “cactiuser”;
$database_password = “”
Add this cron in /etc/crontab
*/5 * * * * cactiuser php /var/www/html/cacti/poller.php > /dev/null 2>&1
Add an alias or virtual host in your apache configuration file:
#vi /etc/httpd/conf/httpd.conf
<Directory "/var/www/html">
    Options Indexes FollowSymLinks
    Order allow,deny
    Allow from all
Alias /cacti/ "/var/www/html/cacti/"
move your cacti folder to your apache home directory
#mv /home/cactiuser/cacti /var/www/html/
#service httpd restart
#service mysqld restart
Post Installation Steps:
Browse the below mentioned URL:
1. Click Next
2. Default (New Install) -> Click Next
3. In third step you will have to provide the correct path of rrdtool and php
RRDTOOL = /usr/local/rrdtool-1.2.15/bin/rrdtool
4. Click Finish
5. Login with Username/Password: admin/admin
6. Change Password for user admin
7. Click Save
Thats all cacti is installed!
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