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.

Welcome to the home of NTP.Dev. This is a web-based collaboration area for NTP Project Members. The following topics are merely intended to be a starting point. Please feel free to add / modify / reorganize / recategorize as necessary to make this TWiki useful in the NTP development process.

• DevelopmentIssues
• PortingIssues

Site Tools of the Dev Web

•      (More options in WebSearch)
• WebChanges: Display recent changes to the Dev web
• WebIndex: List all Dev topics in alphabetical order. See also the faster WebTopicList
• WebNotify: Subscribe to an e-mail alert sent when something changes in the Dev web
• WebStatistics: View access statistics of the Dev web
• WebPreferences: Preferences of the Dev web (TWikiPreferences has site-wide preferences)

Notes:

• You are currently in the Dev web. The color code for this web is this background, so you know where you are.
• If you are not familiar with the NTP collaboration platform, please visit WelcomeGuest first.

TWiki Web	Description of Web	Used to...	Links
Sandbox	Sandbox test area with all features enabled.	...experiment in an unrestricted hands-on web.
IETF	IETF Working Group for NTP	...collaborate on the NTPv4 specification
Servers	NTP Time Servers List	...maintain the NTP Time Servers List
Users.RajulSrivastava		...collaborate on
Dev	NTP Developer's Web.	...collaborate on the development of NTP.
Support	NTP user/admin support area - HOWTOs, FAQs, etc.	...collaborate on tips and tricks for using NTP.
TWiki	Welcome, Registration, and other StartingPoints; TWiki history & Wiki style; All the docs...	...discover TWiki details, and how to start your own site.
Main	The home of the NTP Public Services Project... User Support, Time Servers, Developement	... the NTP Public Services Project
Users	Welcome to NTP... Users, Groups - tour this expandable virtual workspace.	...get a first-hand feel for TWiki possibilities.
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:	Go to the home of the web	See recent changes in the web
	Search the web	Subscribe to get notified of changes by e-mail