I've finally managed to install Smoothwall, DC01, and get internet on DC01 via Smoothwall ! thanks for the guide. Will continue with the guide, and try to complete the whole thing.
Some of the scripts that are attached on your "How Can I configure PKI in a lab on Windows Server 2016 - Part 1-8" says its unavailable.
Is there anywhere else I can get all the scripts related to that guide from?
Once again, thank you very much. I have looked around for a lot of hands of lab guides like this, and this one is probably the best out there.