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-4.2.8p9 was released on 21 November 2016. It addresses 1 high- (Windows only), 2 medum-, 2 medum-/low-, and 5 low-severity security issues, 28 bugfixes, and contains other improvements over 4.2.8p8.
Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.
The time server stratum is the position at which a time server operates in the NTP hierarchy.
A stratum 1 time is directly connected to a reference clock and is at the top of the time server hierarchy.
A stratum 2 time server receives the time from one, or more, stratum 1 time servers. Stratum 2 time servers are not significantly less accurate than stratum 1 time servers.
Use the Inactive
option of ServerStratum to mark a TimeServer