When to use a firewall (e.g. ufw)

[Ian Bruntlett]

Hi Peter,

On Fri, 20 Nov 2020 at 11:56, Peter Flynn <peter at silmaril.ie> wrote:

>
> Network knowledge is always useful, regardless of the operating system,
> because knowing how it all works will let you tune it for better
> performance.
>

I was wondering, is there a particular website / book that provides that
knowledge?

Thank you for your reply.

BW,


Ian

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