r1 - 2007-12-21 - 23:50:22 - BradKnowlesYou are here: NTP >  Support Web > AntiSpam
NTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to being used in distributed denial-of-service (DDoS) attacks. Please also take this opportunity to defeat denial-of-service attacks by implementing Ingress and Egress filtering through BCP38.

ntp-4.2.8p10 was released on 21 March 2017. It addresses 6 medium- and 5 low-severity security issues, 4 informational security topics, 15 bugfixes, and contains other improvements over 4.2.8p9.

Please see the NTP Security Notice for vulnerability and mitigation details.

Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.
The NTP Project uses a variety of standard anti-spam techniques to protect our mail server from excessive abuse from spammers, including but not limited to the following:

However, there are also certain anti-spam techniques we do not use, as we believe that they risk causing more harm than good. The harmful techniques we avoid include:

See MailingLists for additional anti-spam measures that are applied for the mailing lists hosted at ntp.org.

Please contact the Postmaster Services Team if you have any questions about our anti-spam methods. In addition, if you have any suggestions for methods that are not shown above, please let us know.

-- BradKnowles - 21 Dec 2007

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