Re: Limiting ssh access: by MAC Address?
On Wed, Jan 4, 2023 at 2:20 PM Tim Woodall <debianuser@woodall.me.uk> wrote:
> ...
>
> I've also thought about TOTP dns requests as a type of port knocking : a
> dns request to <TOTP>.knock.example.com would open the ssh port for a
> minute. Small local webpage to do the TOTP port knock in javascript
> should work anywhere. Something else that has been on my todo list for
> years.
That is kind of clever. Do you know of any papers that discuss it?
Jeff
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