r4 - 2007-05-01 - 19:53:47 - JasonRabelYou are here: NTP >  Support Web > ConfiguringNTP > ConfiguringRefclocks > RefclockUsers > TrueTimeRefclockUsers
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.
REFACTOR See TrueTimeRefclockUsersDev for discussion of this topic.

14.16. TrueTime Refclock Users

(If you think more/different columns are needed, please edit accordingly!)

NTP Version Operating System Computer Model # Status Who
4.2.0a FreeBSD 5.4 1.2 Ghz PC PSTI/Traconex 1020 OK RogerWiechman
4.0* (any) FreeBSD 6.2 1 Ghz PC TL-3 WWV receiver Crash Dumps. Patch needed. RogerWiechman
4.x.x (any) FreeBSD 6.1 300MHz Geode NTS-100 IRIG OK - Must Start Auto Ouput First JasonRabel

Related Topics: ConfiguringTrueTimeRefclocks

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