Please make sure, the following packages are installed according to your operating systems requirements. Verify, that httpd and mysqld are started at system startup.

• httpd
• php
• php-mysql
• php-snmp
• php-ldap (when using LDAP authentication)
• php-xml
• mysql
• mysql-server
• net-snmp (depending on the distro, net-snmp-utils may be required)

• “www/apache2”
• “net/rrdtool”
• “net/net-snmp”
• “www/php4-cgi”
• “lang/php4” (With MySQL and SNMP Support)
• “databases/mysql323-server”

• Configure PHP
• Configure Apache Webserver
• Configure MySQL
• Configure SNMP
• Install and Configure Cacti
• (Optional) Install and Configure Spine
• Apply Patches

Unfortunately, Cacti packages from different Linux distribution may deviate from the descriptions above. A further root cause of installation trouble is different file layout, e.g. between Red Hat and Debian based distributions.

• Ubuntu Installation Instructions