In order for Cacti to function properly, please edit the following:

/etc/cacti/db.php
/etc/cron.d/cacti
/etc/http/conf.d/cacti.conf

The installation procedure, briefly summarized:

  Create the cacti MySQL database:

  # mysqladmin create cacti

  Import the default cacti database:

  # mysql cacti < /usr/share/doc/cacti-0.8.8a/cacti.sql

  Create the user:

  # mysql
  mysql> GRANT ALL ON cacti.* TO cactiuser@localhost IDENTIFIED BY 'cactiuser';

  (Use a different password in the above GRANT command.)

  Then visit http://localhost/cacti/ to complete the installation.

Cacti's install procedure is not fully compatible with mod_security. If you use
mod_security, please uncomment the SecRuleRemoveById lines in
/etc/http/conf.d/cacti.conf.

Cacti should work with SELinux. If you cannot get it to work, please file a bug.