olemus
liik ummistusründeid: ründaja saadab võltsitud aadressilt
rohkeid lühikesi NTP-ajapäringuid,
mille vastused on kümneid kordi mahukamad
= type of DoS attacks: the attacker sends many short NTP time requests from a spoofed address, the responses of which are tens of times larger

ülevaateid
https://www.youtube.com/watch?v=GGnnsakUJbE

https://www.imperva.com/learn/ddos/ntp-amplification/

https://www.cloudflare.com/

https://www.cs.ru.ac.za/research/g11r0252/Thesis.pdf

näiteid
http://thehackernews.com/2014/02/NTP-Distributed-Denial-of-Service-DDoS-attack.html

tõrje
https://www.us-cert.gov/ncas/alerts/TA14-017A

https://www.steadfast.net/support/kb/106

https://www.orolia.com/resources/blog/denis-reilly/2019/how-protect-your-ntp-server-cyberattacks

https://www.acunetix.com/blog/articles/ntp-reflection-ddos-attacks/