shape network traffic but give priority to one application

[Erich Dollansky]

Hi,

I am again on a very remote location with a pretty slow Internet
connection. The problem I would like to solve sounds simple.

What is the easiest way to shape the network traffic so that one
machine gets most of the bandwidth when needed while all other machines
share the remaining bandwidth?

Google tells me that pfsense is a good start. Are there better options?

Erich