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.

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Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.

• Server list entry maintainer:
  • Set ALLOWTOPICCHANGE = MilesONeal

Notes

1. Located in a Digital Ocean datacenter
2. Very close to a Hurricane Electric stratum 1 server
3. Includes a Naval Observatory server (the gold standard)
4. All stratum 1 servers are low offset, low jitter

Stratum 1 Peerings

% ntpq -p
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
+192.5.41.41     .PTP.            1 u  541 1024  377   18.635   -0.242   3.971
+bonehed.lcs.mit .CDMA.           1 u  635 1024  377    6.814    0.000   0.724
+ntp1.torix.ca   .PPS.            1 u  530 1024  377   14.237   -0.538   1.257
*clock.nyc.he.ne .CDMA.           1 u  283 1024  377    1.279   -0.662   1.412