Questions tagged [time-synchronization]
257 questions
2
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4 answers
Domain Controller time won't sync with NTP server
I'm having a problem with a domain controller which won't sync with a time server.
I've tried everything I can think of and I've already googled many fixes, but nothing seems to work.
This is a HyperV virtual machine which is a domain controller for…
John
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Clock drifts on virtual machine, nothing helps
I have very rapid time drifts on vmware.
-241587 20:38
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-0.014 20:02
-0.025 20:03
-0.056 20:04
-0.093 20:05
-0.093 20:06
-68996. 20:07
-68996. 20:08
12.923 20:07
12.923 20:08
20.371 20:09
21.734…
Алдар
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How to properly sync time for 3 Hyper-V machines, with Host NOT on domain of the VMs?
I understand that for production use, if you have a Hyper-V Domain Controller VM, and the host is on the domain as well, you should have the DC VM reach out to an external source for date/time, and then in turn other machines will sync up to that DC…
ravl13
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Keeping server time in sync using ntpd
I understand ntpd has a -g option to allow a one time immediate clock set for large skews. Then the daemon runs and continuously adjusts. In the event of the skew becoming too large, the daemon exits with an error.
With this understanding, is it…
Elliot
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4 answers
How accurately are aws clocks synchronized between different aws regions?
According to the wikipedia NTP article, NTP is accurate within 10ms over public internet.
I would like to maintain accuracy of logs/events across different AWS regions and my question is how accurately are the AWS clocks synced between the different…
Darthtrader
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3 answers
Win 7 time service error
I see a warning in my Win7 Events Log:
The time service has not synchronized the system time for 86400 seconds because none of the time service providers provided a usable time stamp.
The message suggests that I run:
w32tm /resync
When I try to run…
casterle
2
votes
1 answer
no internet time tab on domain controller, Windows Server 2016
I got an ActiveDirectory with one domain controller that run on Windows Server 2016. I set everything up and most of the things run perfectly so far.
But now and then when we have to take it offline, the time is set back from the exact amount of…
manman
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1 answer
NTP is running, Clock not synced. Manual DOES work
An ubuntu server is running ntp, and connected to the internet. Still, the system clock is about 30 minutes wrong and gets bigger over time.
$ service ntp status
NTP server is running..
Output of ntpq -p
remote refid st t when poll…
ThomasVdB
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votes
1 answer
Getting HTTP response with date before request date. Is that right?
Say I sent a HTTP request at Thu, 22 Jun 2017 10:30:30 GMT.
Is it right if I got Thu, 22 Jun 2017 10:30:25 GMT in response Date header?
Which could be the cause?
nanocv
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4 answers
ntp.conf: Is it reasonable to rely on default server list, exposed in CentOS?
Every time I setup a new Linux host (CentOS, lately), expecially when such an host will have some roles within our small datacenter (around 100 hosts), I take care to:
install the ntp package;
add, on top of the server list, a new server instance…
Damiano Verzulli
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Why does my Ubuntu virtual machine hosted in Hyper-V power on with a date in the future?
I have several Ubuntu virtual machine running within a Hyper-V server. The server is a Windows 2012r2 machine. The Ubuntu VMs are either Ubuntu 14.04 or Ubuntu 16.04 (the current LTS releases).
It seems that when the virtual machines first power…
TafT
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1 answer
PDCe won't accept external time source
I noticed our PDCe is running 1:20min late and, of course, also the rest of devices in the network. I'm trying to sync with an external time source but it's not going well.
It's a virtual Windows Server 2008 R2 over XenServer 6.0.0. The host is…
HEDMON
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1 answer
w32time in domain polling from wrong Domain Controller
From the MS Documentation I can see that computers in a domain should get their time from the PDC domain controller, and if done right the PDC should get it's time from an external source.
In my environment I have changed the PDC a while back after…
tyelford
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Is there a way to determine how often Chrony is querying NTP servers to sync time?
Is there any way to tell how often Chrony is querying NTP servers?
If the answer is that it uses some algorithm based on how much the server has been out of sync in the past, is there some documentation on how that algorithm works?
Is there a way…
Chris Williams
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How do I confirm what my PDC is using for it's time source and how do I setup an external time source?
Server 2012 R2, Hyper-V
I am trying to finalize setting up my first primary domain controller. One of the warnings that always comes up after first promoting the DC is Event ID 12 along with other time source related events.
So I read different…
Alan
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