Mailinglist Archive: opensuse (929 mails)

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Re: [opensuse] DDoS Attacks on gaming servers using NTP
В Fri, 07 Mar 2014 10:09:32 -0300
Cristian Rodríguez <crrodriguez@xxxxxxxxxxxx> пишет:

El 07/03/14 10:01, Paul Neuwirth escribió:
Hallo,
analyzing my network traffic i saw lot's of high volume connections from
my ntpd to game servers..
googling arround (https://www.google.com/search?q=ntp+xbox+gameserver) i
read about DDoS attacks using ntp.
How to avoid my ntpd being used for that?
installed ntp-4.2.6p5-9.3.1.x86_64
Thanks for help


You need to apply the relevant security updates.


There are no patches. You need to manually harden ntp.conf. It is
impossible to implement via patch.

See
http://blog.cloudflare.com/technical-details-behind-a-400gbps-ntp-amplification-ddos-attack

and the linked articles.





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