r12 - 2013-01-31 - 20:32:12 - TlHackqueYou are here: NTP >  Support Web > ConfiguringNTP > ConfiguringRefclocks > RefclockUsers > NMEARefclockUsers
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-4.2.8p11 was released on 27 February 2018. It addresses 2 low-/medium-, 1 informational-/medium-, and 2 low-severity security issues in ntpd, 1 medium-severity security issue in ntpq, and provides over 65 non-security bugfixes and other improvements over 4.2.8p10.

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 NMEARefclockUsersDev for discussion of this topic.

14.12. NMEA Refclock Users

NTP Version Operating System Computer Vendor and Model # Status Who
4.2.4p4 Linux-2.4.20.NANO, FreeBSD-6.2 x86 Accord-NAV2300 OK VenuGopal
4.2.4p4 FreeBSD 6.2 Athlon XP 1200Mhz Garmin GPS 18 LVC works DennisHilbergJr
4.2.5p117@1.1730-o Linux/2.4.32-NANO Athlon 1GHz Garmin GPS35 works StevenBjork
4.2.4p5 NetBSD 4.0 IBM Aptiva 200Mhz Garmin GPS 18 LVC works PierreDubuc
4.2.6p2 openSUSE 11.1 (i586) Kontron 986LCD-M NaviLock NL-302U works, but occasionally time info is one second off HaraldBrinkmann
4.2.6p3-RC7 Linux/2.6.35 64bit AMD PhenomX4 2.2GHz Garmin GPS 18x LVC works JuergenPerlinger
4.2.4p5-a (1) FreeBSD 8.0 Intel Atom single-core GPS 18 LVC works DavidTaylor
4.2.7p97 Windows XP Intel 1.9GHz Pentium 4 GPS 18 LVC works DavidTaylor
4.2.7p97 Windows-7 32-bit Intel 2.8GHz Pentium 4 HT GPS 18x LVC works, but need to separate NMEA (partly works) and PPS (works fine) DavidTaylor
4.2.6p5 Linux 3.2.27 Raspberry Pi (Arm BCM2708) Garmin GPS 18x LVC Works - LinuxPPS PPS GPIO TlHackque

Related Topics: Configuring NMEA Refclocks

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