LEAP Second Security Vulnerability - Urgent - Attention please answer ASAP.

[Paul11]

When do LEAP Second Security Vulnerability will happen again in end of December 2016???

Is Vulnerability or 2015 002 or any Leap Second going to happen end of this December 2016???

[cbuchenau]

Paul, you are saying that your internal NTP server (x450a-24x) is NOT receiving time from an external NTP source - then you should be fine, but you have to question your NTP setup in general. As you would have to manually adjust the time on your x450 every now and then.

If you do use external NTP servers, or plan to do so, you can also have a look at servers that implement the so called "Leap smear", where the 1 second is not inserted as extra second, but distributed over a time of 20 hours (that is, for 20 hours the clock is running slightly slower). Like Google does:
https://developers.google.com/time/smear

carsten

[Karthik_Mohando]

As long as the switch X450a-24x do not get the leap second insertion packet it will remain unaffected.

[Paul11]

Hi Karthik,

Very informative. I greatly appreciate your help and input.

Regards,
Paul

[Karthik_Mohando]

Paul, " I do not think Windows server will be affected with leap second insertion. Disclaimer : This information is taken from External source  Please check the Microsoft link and one external link https://blogs.msdn.microsoft.com/mthree/2015/01/08/the-story-around-leap-seconds-and-windows-its-likely-not-y2k/ http://www.windowstricks.in/2015/06/is-leap-second-impact-windows-servers-and-application.html "