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.

NTP Site Map

Web	NTP Site Map	Use to...
Users	Welcome to NTP... Users, Groups - tour this expandable virtual workspace.	...get a first-hand feel for TWiki possibilities.
TWiki	Welcome, Registration, and other StartingPoints; TWiki history & Wiki style; All the docs...	...discover TWiki details, and how to start your own site.
Dev	NTP Developer's Web.	...collaborate on the development of NTP.
IETF	IETF Working Group for NTP	...collaborate on the NTPv4 specification
Main	The home of the NTP Public Services Project... User Support, Time Servers, Developement	... the NTP Public Services Project
Sandbox	Sandbox test area with all features enabled.	...experiment in an unrestricted hands-on web.
Servers	NTP Time Servers List	...maintain the NTP Time Servers List
Support	NTP user/admin support area - HOWTOs, FAQs, etc.	...collaborate on tips and tricks for using NTP.
Users.RajulSrivastava		...collaborate on
You can use color coding by web for identification and reference. This table is updated automatically based on WebPreferences settings of the individual webs. Contact webmaster@ntp.org if you need a separate collaboration web for your team. See also AdminToolsCategory.

Legend of icons:

= Go to the home of the web = Search the web

= See recent changes in the web = Subscribe to get notified of changes by e-mail