[cisco-voip] CCX and NTP

[Haas, Neal]

Get an on-prem NTP server, if you cant spend the money, use:

time.nist.gov     global address for all servers       Multiple locations
utcnist.colorado.edu      128.138.140.44  University of Colorado, Boulder
utcnist2.colorado.edu    128.138.141.172                University of Colorado, Boulder
time-nw.nist.gov             131.107.13.100  Microsoft, Redmond, Washington

Really, anything with a GOV, or EDU should be good.

By the way, you should NEVER, EVER, EVER (can't stress this enough) a Windows Based NTP.  Every place that I have went into and removed a Windows Time server, everything has worked better! Windows just cant do time. I went into a business with windows NTP, and the guy was checking time from about 100 NTP servers, his time was off by three minutes. Took it down to 3 and everything started to work.

Thank You,

Neal Haas

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Ben Amick
Sent: Monday, May 8, 2017 7:12 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] CCX and NTP

What do you guys use for NTP on your CCX hosts? I've been informed by TAC that "CCX does not support Windows based NTP" so I was thinking about just pointing NTP towards my CCM hosts - is that a valid scenario? I figure that since CCM is pretty much authoritative on everything for CCX as it is it wouldn't be a problem?

Ben Amick
Telecom Analyst


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