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Questions tagged [ntp]

NTP stands for Network Time Protocol, and it is an Internet protocol used to synchronize the clocks of computers to some time reference.

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Is my NTP configuration correct?

I have a CentOS virtual machine running remotely, accessible via VPN. It was set up to sync time from two servers on the same network. The time set is approximately right, but seems to be drifting off. I am concerned by the mention of the date 2036…
niciliketo
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ntpd on Ubuntu fails to sync with status 2040

My Ubuntu 10.04 server has ntpd running with default configuration. Problem is it doesn't sync. Syslog shows: kernel time sync status 2040 When I try stopping ntpd and running ntpd -q it does work. So I'm guessing the difference lies in the way…
Assaf Lavie
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What is my time source server 2003

Have just had a bit of an issue with our time setup after an issue with our PDC. Am on clear up duty now but am struggling with some 2003 servers. On server 2008 I can run w32tm /query /source and it responds with the DC that it has synced time…
user35213
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2 servers, times always go out of sync

I have 2 servers set with the same timezone and I set them with the same time and I have them both updating their server time from the same internet time source. But each week they seem to fall away from each other time wise, one will always end up…
Slee
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Procedure for changing system time?

Possible Duplicate: periodically overridding NTP for simulation purposes When we conduct our DR exercises, we have to rerun production batches from the previous day. In order to accommodate the rerunning of these batches, the system clocks on all…
Pete Ekanem
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NTP: ntpdate to sync time between the PCs on a private network

I have two systems. One acts as Primary/Active and has Internet connection and gets time from NTP server. The second system is Secondary/Passive and has no connection to the external world. Primary and Secondary are connected on a private network…
Vishu
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Link CentOS server to an NTP Server

I have a CentOS 5.5 server that the clock is wrong on. I also have a pre-existing NTP server, but all of the info I can find is focused on setting up an NTP server, as opposed to linking to one. How do I do this please?
David Gard
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Cisco ASA5505 won't sync with NTP

Today I noticed that the clock my Cisco ASA 5505 firewall was running about 15 minutes late, which surprised me since I've set up the NTP client. My two NTP servers 10.10.0.1 and 10.10.0.2 are virtualized Windows Server 2008 R2 domain controllers,…
Martijn Heemels
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Does CentOS 5.4 properly handle leap seconds?

Apparently the IERS have announced a leap second due at midnight, June 30th this year. Is CentOS/RHEL 5.4 properly updated to support/transition along with updated NTP systems? I was under the impression that it would need an updated tzdata…
Mike B
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NTP maxpoll limits

Regarding NTP's maxpoll configuration attribute, many resources state: The maximum poll interval defaults to 10 (1,024 s), but can be increased by the maxpoll option to an upper limit of 17 (36.4 h) However I couldn't find references for hacing…
Jonathan
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Do CDMA based time servers passively read timing information from the cell network?

GPS based time servers are receive only, that is, they passively read the timing information from the GPS network. Do CDMA based time servers work the same way? In other words, do CDMA based time servers passively listen to CDMA signals without…
andand
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State of the art auto time sync?

Placing ntpdate into cron seems to be no longer a good idea. What is an easy state-of-the-art automatic environmental friendly ;-) sleek way of keeping a (debian) server's time clock up to date?
powtac
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Windows 2008 - Time Sync

What is the threshold in Windows 2008 when the local clock differs from an NTP source and it will not synchronize? For example, if the local time is off > 2 days, will NTP still sync? Is there a value that can be tweaked? No Domain/Active Directory…
andyhky
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Windows 2008 R2 64 bit multihomed. NTP time synching issue

I have a DMZ machine that i wish to sync to a time source ().pool.ntp.org. Perimeter Firewall is setup to allow relevant ports through. Obviously local FW on the server is on and configured to allow again, the relevant ports through for time…
Goaks
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Windows NTP client changes timezone to Pacific automatically

I have a Windows 2008 server machine and I am trying to use this public IP 128.252.19.1 to synchronize the time, however, I would like my system to have Eastern timezone. When I enter the configuration using the steps give on this support page:…
Zain Ally
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