At first login in the web interface, the user is admin/admin

http://denisrosenkranz.com/tuto-installation-de-cacti-0-8-8a-sur-debian-6/

http://www.xenux.net/index.php?option=com_content&view=article&id=111:installation-de-cacti&catid=40:documentations-supervision&Itemid=107

http://www.cacti.net/

http://docs.cacti.net/howto

http://alice.loria.fr/index.php?option=com_content&view=article&id=22

https://launchpad.net/graphite/+download/

http://www.thruk.org/images/screenshots/screenshots.html

http://doc.monitoring-fr.org/2_0/xhtml/installweb.html

http://lesaventuresdeyannigdanslemondeit.blogspot.fr/2012/10/thruk-une-alternative-linterface-web-de.html

http://www.yannobi.com/2010/06/interface-web-de-configuration-pour-nagios-nconf/