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 NTP. This page assumes that you are a new user to NTP, and that you've never heard of Wiki before. Here are the most important pages you should know about to get you up to speed on what Wiki is, and how to use it. Follow any of the links below that interest you and use your browser's back button to return to this page if you need to.

• WelcomeGuest: A brief intro for first-time visitors
• TWikiTutorial: A compact, 20-minute TWiki primer
• WebHome: Entry point for this TWiki web.
• TWikiSite: Explains what a TWiki site is
• WebChanges: Newest topic changes in the TWiki web
• TWikiFAQ: Common questions about TWiki use

• TWikiTopics: Customize, rename, move, or delete TWiki topics
• GoodStyle: Things to consider when changing text
• TWikiShorthand: Easy to learn rules for editing text
• TextFormattingRules: The complete set of text formatting rules
• TextFormattingFAQ: Common how-to questions about posting in TWiki

• TWikiVariables: How to easily embed text, graphics, dynamic content

• MainFeatures: The main features of the TWiki collaboration platform
• FileAttachments: Browser-upload files for distribution or display
• WebChangesAlert: Get email alerts linking to the latest page changes