The Perfect Database Server: Firebird 2.5 And FreeBSD 8.1
Here is the guide on installing Firebird 2.5 from FreeBSD 8.1 Ports and creating your first test database; also we show you how to install Flamerobin GUI (administration tool) and the PHP driver for it. This was tested on fresh FreeBSD 8.1 on a virtual machine.
Read more: http://howtoforge.com/the-perfect-database-server-firebird-2.5-and-freebsd-8.1