Managing services with update-rc.d

There are some useful examples that show uses of the command, "update-rc.d", at the following link, http://www.debuntu.org/how-to-manage-services-with-update-rc.d . Although, as an option there should be rcconf. As explained here http://www.cyberciti.biz/faq/howto-runlevel-configuration-tool-to-start-service/ .