Install Cacti on Centos 5.7

yum install priorities

For x86 version

rpm -Uhv http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6 1.el5.rf.i386.rpm

For x64 version

rpm -Uhv http://apt.sw.be/redhat/el5/en/x86_64/rpmforge/RPMS//rpmforge-release-0.3.6-1.el5.rf.x86_64.rpm

Install Apache

yum install httpd

Configure Apache to start on boot

/sbin/chkconfig  httpd on

Configure iptables to allow Apache traffic

/sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT

/etc/init.d/iptables save

/etc/init.d/iptables restart

Install Cacti & Required Dependencies

yum install cacti mysql-server mysql php5 php-mysql net-snmp net-snmp-utils php-snmp liberation-fonts

Configure mysqld to start on boot

/sbin/chkconfig mysqld on

Start mysqld

/etc/init.d/mysqld start

Set the password for the MySQL root user

/usr/bin/mysqladmin -u root password <PASSWORD-GOES-HERE>

Create the MySQL cacti database (Note: The password you will be prompted for is the one you just set.)

/usr/bin/mysqladmin -u root -p create cacti

Log into the MySQL database and grant the cactiuser access to the cacti database

/usr/bin/mysql -u root -p

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 46
Server version: 5.0.77 Source distribution

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> GRANT ALL ON cacti.* TO cactiuser@localhost IDENTIFIED BY '<CACTIUSER-PASSWORD-GOES-HERE>';
Query OK, 0 rows affected (0.00 sec)

mysql> quit
Bye

Populate the cacti database (Note: You will use the password you created for cactiuser here)

/usr/bin/mysql cacti -u cactiuser -p < /var/www/cacti/cacti.sql

Modify /var/www/cacti/include/config.php to have the correct password for the cacti database

$database_password = "<CACTIUSER-PASSWORD-GOES-HERE>";

Modified /etc/httpd/conf.d/cacti.conf to fix url and allow access from anywhere

Alias /cacti /var/www/cacti/
<Directory /var/www/cacti/>
    DirectoryIndex index.php
    Options -Indexes 
    AllowOverride all 
    order deny,allow
    deny from all
    allow from 127.0.0.1
    allow from 192.168.0.0/24 #Network Address Range 
    AddType application/x-httpd-php .php
    php_flag magic_quotes_gpc on
    php_flag track_vars on
</Directory>

Start Apache

/etc/init.d/httpd start

Go to http://servername/cacti/ & go through the following screens