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-4.2.8p6was released on 19 January 2016. It addresses 9 low- and medium-severity security issues, 10 bugfixes, and contains other improvements over 4.2.8p5.
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.
NTPis normally started automatically during your OS boot process. Details can be found at StartingNTP.