User Shandar Jahangir shows us how to get Redmine set up on FreeBSD Apache. See the link below for the full instructions.
Installing Redmine on FreeBSD isn’t hard, but it requires many steps (especially if the machine you are working on is bare and has just the minimum software ports installed.
This guide has the prerequisites of a working FreeBSD server with Apache and MySQL configured and ready to work on (there’s plenty of guides out there to set those up). Preferably, you should also have super user rights on the machine, otherwise this whole venture might prove more difficult than it should be.
If your server is already setup with Ruby, GIT, Passenger and ImageMagick, you can skip past most of the introductory stuff and go straight to the Redmine Installation part.
Full tutorial: http://www.alychidesigns.com/install-redmine-freebsd/