r7 - 2011-06-07 - 20:42:03 - SteveKosteckeYou are here: NTP >  Support Web > ConfiguringNTP > ConfiguringRefclocks > RefclockUsers > WWVBRefclockUsers
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 WWVBRefclockUsersDev for discussion of this topic.

14.19. WWVB Refclock Users

NTP Version Operating System Computer WWVB Receiver Status Who
4.2.0-1.1161 FreeBSD 5.4 433 MHz PC Spectracom 8170 OK JohnAckermann
4.2.5p8 dev FreeBSD 6.2 1 Ghz PC Spectracom NetClock2 OK RogerWiechman
4.2.4p4 FreeBSD 6.2 Athlon 650Mz Ultralink 325 OK DennisHilbergJr
4.2.5p117@1.1730-o Linux/2.6.24.2 PII/400 Spectracom Netclock/2 works StevenBjork

Related Topics: ConfiguringWWVBRefclocks

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