r1 - 2011-02-13 - 03:17:54 - HarlanStennYou are here: NTP >  Dev Web > UpdateCheck
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-4.2.8p15 was released on 23 June 2020. It addresses 1 medium-severity security issue in ntpd, and provides 13 non-security bugfixes over 4.2.8p13.

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.

NTP Release Update Check


Many people run a version of ntp that is Very Old.


Implementation choices

The client (ntpd and/or ntpq) could send a very short dynamic page request with the version number, the XML of which tells the client if there's any newer stable release as well as if there are high-priority reasons to update from the given version.

We'd also have an html wrapper presenting the same info in human readable form, with a few more links.

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