I could see that, but when first learning about firewalls and such, start in an isolated environment.. test with VMs, old machines, whatever. Putting machines o

I could see that, but when first learning about firewalls and such, start in an isolated environment.. test with VMs, old machines, whatever. Putting machines on the internet misconfigured can both put you at risk, but can also mean another device ends up in the hands of a botnet - thinking the internet outside of a firewall is any friendlier than the "real world" in the matrix is just fantasy. If someone is interested in weapons or guns, you wouldn't want them to try out their skills by putting them straight into a war zone. If someone put a tutorial on a forum for gas-engineers, about how great and easy redoing the pipes in their house because they bought a blow torch, they'd be concerns for the safety of them and the people/houses around them, surely. > I think that even people who do have some interest in running their own firewall, may not be familiar with VLANs. Even the all-in-one appliances/disros provide a lot of documentation on the topic