Using a VGA or HDMI cable extender is going to weaken the signal?
pfSense is primarily handled via it's web UI. ssh is there too. I need to have direct access to the machine (as opposed to web UI or ssh) to install it and because I'll probably screw things up at some point.
For machines that don't have a graphics card, the pfSense guys recommend having a serial connector to manage the server from there.
It's ok if I have to move the box close to the screen. What I'm concerned about is if it will work. I only need console, no graphics. Installation asks a few questions and takes less a few minutes to complete.