r22 - 2012-12-14 - 21:28:28 - SteveKosteckeYou are here: NTP >  Main Web > ExternalTimeRelatedLinks
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.

Links

NTP Ports

Microsoft Windows

Other Related links

Commercial NTP related products are listed on the Vendor Links page.

Hardware

Software

Please see the NIST Internet Time Service (ITS) page for a list of publishers of computer clock synchronization software.

C

Haskell

Perl

Python

Ruby

TCL

Windows Binaries

Time Related Web-sites

Online Time Services

Where to find Third Party NTP software

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