r6 - 2008-05-27 - 22:02:21 - StevenBjorkYou are here: NTP >  Support Web > ConfiguringNTP > ConfiguringRefclocks > ConfiguringIrigRefclocks > IrigRefclockUsers
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.
REFACTOR See IrigRefclockUsersDev for discussion of this topic.

14.8. Irig Refclock Users

NTP Version Operating System Computer IRIG/Audio Device IRIG Source Status Who
4.2.0 FreeBSD5 x86 CMedia CMI8738 Meinberg GPS167BGT Almost working HarlanStenn
4.2.5p117@1.1730-o Linux/ PII/400 ALSA snd_ens1371 TrueTime 914-338 works StevenBjork

Related Topics: ConfiguringIrigRefclocks

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