[pmg-devel] [PATCH pmg-api/gui] add quarantine self service button

Thomas Lamprecht t.lamprecht at proxmox.com
Wed Nov 18 08:44:05 CET 2020

On 17.11.20 17:38, Dietmar Maurer wrote:
>> On 11/17/2020 5:27 PM Dietmar Maurer <dietmar at proxmox.com> wrote:
>> IMHO this is too dangerous.
>> This needs at least some kind of captcha ...
> i.e. This would allow direct DOS attacks to the internal mail server.

I found this captcha solution, relatively sophisticated but not a PITA for the
(human) user, Friendly Captcha[0] used by some official European Union websites.

It uses Proof of Work[2] (i.e. crypto puzzel ones device needs to solve by
computation), the specific library used is "Friendly PoW"[1].

If we go for a captcha I'd like something like this (could be rebuild), as
it avoids the issues with picture texts (easily solved by computers, bad
accessibility for humans) and similar captchas.

[0]: https://github.com/friendlycaptcha/friendly-challenge
[1]: https://github.com/friendlycaptcha/friendly-pow
[2]: https://de.wikipedia.org/wiki/Proof_of_Work

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