r8 - 2013-10-01 - 16:59:29 - SteveKosteckeYou are here: NTP >  Main Web > DocumentationIndex
NTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to use in a distributed denial-of-service (DDoS) attack. Please also take this opportunity to defeat denial-of-service attacks by implementing ingress and Egress filtering through BCP38.

The final two security bugs reported by Google's Security Team have been fixed as of ntp-4.2.8p1.

A new set of mode 6 vulnerabilities has been discovered and, while these vulnerabilities can be reduced by making sure you have restrict default noquery in your ntp.conf file, the best and most complete way to avoid these vulnerabilities is to install and deploy ntp-4.2.8p1 which was released on 04 February 2015.

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.

Documentation Index

The Official NTP documentation is distributed as HTML only. Manpages, or other forms of documentation, are maintained by third parties.

General Reference

Additional information

Outside resources

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