NTP stands for Network Time Protocol, and it is an Internet protocol used to synchronize the clocks of computers to some time reference.
Questions tagged [ntp]
717 questions
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ntpdate take long time to sync (not ntpd)
I have referred ntpdate -d Server dropped Strata too high. This is a similar but different question.
I having two devices.
Freescale ARM board (NTP server)
Tinker board (client)
In the Freescale board which already installed an NTP server and the…

JustWe
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NTP and NTPDATE over IPv6 Does Not Work
I have been working with setting up an NTP server for testing IPv6 syncing. I am unable to find any help with getting the configuration to work.
If ntp 4.2.6 and ntpdate 4.2.6 say they support IPv6, why is there no documentation explaining what…

r-diggz
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Prevent VM clock running faster than it should
I have a unRAID 6.6.5 server with perfectly correct time and multiple Linux VMs which used to be perfectly synced too. I rebooted one of my VM and suddenly the clock goes twice as fast as the hwclock. I can easily see that by doing these 2 loops in…

dan
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NTP on a REST API
I have an application that's running a REST API and recently a requirement came up to have an NTP server associated with the application. My question is whether or not it makes sense to have an endpoint on the API that users can query (i.e.…

sjyn
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Behavior when not writing ntp.conf restrict
if I don't write restrict in ntp.conf , so ntp restrict is Unlimited?
I wrote:
interface ignore wildcard
interface listen lo
interface listen lan0
man page http://doc.ntp.org/current-stable/accopt.html#restrict said:
A default entry (address…

miwarin
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centOs : system time getting reset back to UTC after changing it using timedatectl
I have a Centos machine with version 7. I am trying to change the system time using the timedatectl command. The time gets changed but after a few seconds it gets reset back to it's original time.
[root@abcd ~]# timedatectl
Local time: Tue…

user1851006
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EventID 1 - An application or system component changed the time
Our VM's are coming up with the following errors in the Event Log -
EventID 1 Change Reason: An application or system component changed the time.
All the DC's look to be time synced correctly, but we are also getting this error on the PDC -
Root…

mashedmallow
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Accurate Timekeeping for Windows Server 2008 VMs without Domain Controller
I'm looking for guidance on how to best configure a group of four Windows Server 2008 VMs (two on one host, and two more on another), so that they maintain accurate time, across reboots/shutdowns. I'm using ESX Server 3.5 and vCenter Server 2.5. …
Sean
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3 answers
Synchronise client to internet time server from within a domain
Our infrastructure team have bigger things to worry about right now than the network time being 2 minutes out (2 mins slower than external reliable sources). However, the time being wrong really bugs me and the more anal retentive members of our…

G-.
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NTP does not update until after I poll it
I have NTP setup to run with GPSd and all is well. The issue arises after about a week of my raspberry pi being disconnected, NTP will trust the old date on the system clock. Since the GPS takes a couple seconds to get power and acquire a lock it…

Chaos
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NTP server sync
I wish to understand following scenario with NTP server,
I have 3 systems in the network and on two I have configured the NTP server (these two systems doesn't have network in between them)
then on the 3rd system which is in network with both the…
Arpit
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2 answers
Unable to synchronize date by NTP on Debian 9
Debian 9 as Guest Hyper-V is unable to synchronize the clock and set the right date, always it stays around 6 minutes behind:
(Timezone is obfuscated)
# systemctl start ntp
# date
sáb jul 7 09:42:59 -03 2018
# timedatectl
Local…

sebelk
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NTP doesn't seem to be enabled and synchronised in Debian Jessie
When I follow steps below in Ubuntu, NTP is enabled and synchronised. However, the case is opposite in Debian Jessie. Anybody knows the reason why Debian says "no"? Also should I worry at all since the "Local time" is correct?
Steps taken
$…

BentCoder
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Wrong time on Docker debian container despite NTP
I am creating a simple debian-based docker (php:7-apache). To create it I use:
docker run -d -p 80:80 --name myname -v "$PWD":/var/www/html php:7-apache
I noticed that my docker is possibly suffering from this issue, therefore now, each time I run…

JoeSlav
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Azure Time Sync Service without Internet Access
Is there a feature for Azure similar to Amazon Time Sync Service which can be used with Azure VMs to have time synchronization without Internet access?
I could also find references to 0.amazon.pool.ntp.org, does Azure has something similar?
Ref:…

Ranjandas
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