r5 - 2013-02-25 - 23:13:40 - SteveKosteckeYou are here: NTP >  Servers Web > ServerForm > ServerStratum
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-4.2.8p12 was released on 14 August 2018. It addresses 1 low-/medium-severity security issue in ntpd, 1 low-severity security issue in ntpq and ntpdc, and provides 27 non-security bugfixes and 4 other improvements over 4.2.8p11.

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.
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.

IDEA! Use the Inactive option of ServerStratum to mark a TimeServer as Inactive.

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