r19 - 2015-02-10 - 09:30:34 - KenyonRalphYou are here: NTP >  Support Web > ConfiguringNTP > ConfiguringRefclocks > RefclockUsers > GarminRefclockUsers
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 GarminRefclockUsersDev for discussion of this topic.

14.5. Garmin Refclock Users

NTP Version Operating System Computer Vendor and Model # Status WhoSorted ascending
4.2.4p5-a (1) FreeBSD 8.0 Intel Atom GPS 18 LVC works DavidTaylor
4.2.7p97 Windows XP SP3 Intel 1.9GHz Pentium 4 GPS 18 LVC works DavidTaylor
4.2.7p97 Windows-7 SP1 32-bit Intel 2.8GHz Pentium 4 HT GPS 18x LVC works, but need to separate NMEA (partly works) and PPS (works fine) DavidTaylor
4.2.4p4 Mandriva 2007.0 Athlon XP 2400+ GPS 18 LVC works with gpsd, shmpps DennisHilbergJr
4.2.4p4 FreeBSD 6.2 Athlon XP 1200Mhz GPS 18 LVC works with GPS_NMEA driver DennisHilbergJr
4.2.6p2 openSUSE 11.1 (i586) Kontron 986LCD-M GPS 18 LVC works with gpsd, SHM, PPS HaraldBrinkmann
4.2.8p1 Debian wheezy Intel i7-3770 GPS 18x LVC firmware 3.90 einstein.kenyonralph.com. works with GPS_NMEA and CONFIG_NTP_PPS kernel, fudge flag1 1 flag2 0 flag3 1 time2 0.545 KenyonRalph
4.2.4 FreeBSD6 x86_64 18 LVC works KimSindalsen
4.2.7p178 Linux 2.6.37 AMD Athlon FX-62 GPS 18x LVC works with GPS_NMEA, required large (>1sec) time2 fudge with firmware 3.60. Using firmware 3.00 the time2 offset is smaller. LaszloHanyecz
4.2.6p5 Ubuntu 10.04 Intel Celeron 1.8GHz GPS 18x LVC firmware 3.70 Works with NMEA driver (20), need to use '/dev/gpsU' symlinked to '/dev/ttySx' for GPS and '/dev/gpsppsU' symlinked to '/dev/ppsU' for PPS support. Need's PPS patched Ubuntu kernel for Linux 2.6.32. Fudge time2 at 0.620. Server stats; Atlas Pbody LukeJMilitello
4.2.4p5 NetBSD 4.0 IBM Aptiva 200Mhz GPS 18 LVC works with GPS_NMEA driver PierreDubuc
4.2.2 Ubuntu AMD Athlon X2 3600+ 18 LVC works gpsd SHM RandallPrentice

Related Topics: ConfiguringGarminRefclocks

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