[Discuss] Port Scanning

[Rich Pieri]

On Thu, 1 Aug 2024 16:37:47 -0700
Kent Borg <kentborg at borg.org> wrote:

> And all of that was built on the unquestioned assumption that
> firewalls are how we keep our computing safe.

I think you're putting the cart before the horse.

Because we didn't have firewalls in the 1980s. The concept existed and
probably a few organizations had very basic (by contemporary standards)
firewalls to isolate things. But generally? Those 50K ARPANET nodes?
Almost all could connect directly to each other.

We didn't build an infrastructure that expected firewalls to protect
it. We built firewalls to protect the infrastructure that originally
didn't need protecting.

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