I have the script with the rules, what now?

["Arrizabalaga, Saioa" <sarrizabalaga@xxxxxxx>]

Hi everyone,

I am a newbie, and I am probably asking a silly question, but anyway!

I have 3 network cards (2 for internal networks and the other one to
Internet), and I have already started with my ruleset and have made a
script, based on the scripts I have found in several HOWTOs and
tutorials.

My question is: how do I execute this script now?

Thanks in advance

Saioa