[Ntp] Antw: [EXT] Re: DDoS meets NTP

Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de> Tue, 20 April 2021 07:01 UTC

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Date: Tue, 20 Apr 2021 09:00:54 +0200
From: "Ulrich Windl" <Ulrich.Windl@rz.uni-regensburg.de>
To: "Daniel Franke" <dfoxfranke@gmail.com>, "Hal Murray" <hmurray@megapathdsl.net>
Cc: "ntp@ietf.org" <ntp@ietf.org>
References: <dfoxfranke@gmail.com> <CAJm83bDzve+x7zxtp-g4+RmkbQ8_rBkainOXCim-q37W=7borg@mail.gmail.com> <20210419191226.5AD8740605C@ip-64-139-1-69.sjc.megapath.net> <CAJm83bAmsSDJ0hMPimXFxo2M+KzcfNpY2Kv5h541R4=Sv__+-Q@mail.gmail.com> <78A017D50200007043047E14@gwsmtp.uni-regensburg.de> <118C0E41020000F8AB59E961@gwsmtp.uni-regensburg.de> <788187C10200009C43047E14@gwsmtp.uni-regensburg.de> <8C96E46D020000BCAB59E961@gwsmtp.uni-regensburg.de>
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Subject: [Ntp] Antw: [EXT] Re: DDoS meets NTP
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>>> Daniel Franke <dfoxfranke@gmail.com> schrieb am 19.04.2021 um 21:39 in
Nachricht
<CAJm83bAmsSDJ0hMPimXFxo2M+KzcfNpY2Kv5h541R4=Sv__+-Q@mail.gmail.com>om>:
> On Mon, Apr 19, 2021 at 3:12 PM Hal Murray <hmurray@megapathdsl.net> wrote:
> 
> 
>> If I don't rate limit, then a bad guy can use my server as a reflector to
>> DDoS
>> any target.  Making my server run at full line rate just makes things
>> worse
>> for victims.
>>
> 
> If your server is correctly configured, then you never amplify any traffic
> so adversaries gain no benefit from doing this. They can hammer the
> ultimate victim just as hard on their own as they can by using your server
> as a reflector.

But the point is: Will they realize (or just continue the mis-use)?