Change configuration from SD card

Hi guys,
I have a respberry and I installed Debian on the SD card.
However I don't have a monitor with hdmi because my raspberry will be a remote server.

So I need to change some configuration like IP Static address directly from the SD card...is that possible??

Thank you
Mat

Have you tried using ssh from another computer to access the headless RPi? (PuTTY is a good ssh client if you are running MS Windows - http://www.putty.org/)

You can boot any linux live cd on your PC, mount root partition from SD card and edit configuration. Or you can find out what ip your Pi got in your DHCP log and connect to it using ssh.