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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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How to force locally isolated ntpd update time

Objective I had locally isolated hosts. I'd like them all have the same time. One takes role of the time server, other syncs with it as clients. All machines has sporadic uptime. They are powered rarely. So they could gain significant offset. Entire…
ayvango
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How do I time synchronize servers without using an external NTP server?

We have some servers (Centos 5.3) that are behind a firewall without access to the Internet. We'd like all the logs to be synchronized, but NTP appears to want the authoritative server to be synchronized to a public NTP server. We've tried the -g…
John Whitlock
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W32time on 2016

Virtual server on MS 2016, on a domain, w32time is disabled. What is required so that time sync works with best practice to sync with domain DC? Other MS 2012 R2 have w32time running but manual(triggered start). Should it be automatic or manual? GPO…
burgergold
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NTP Autokey IFF not working as expected

A) TARGET ARCHITECTURE We have a project where the target NTP time synchronisation architecture is the following: Stratum 1 servers provided by the customer. Stratum 2 servers: Spectracom SecureSync appliances provided by us. Stratum 3: end-user…
it_man
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NTP peer's upstream source has same IP causing sync loop

I have an NTP server configured to use another NTP server (10.128.0.10) as its time source. Due to some network address translation, my NTP server (192.0.2.1) has the same IP address as the peer's upstream NTP server (192.0.2.1). $ ntpq -4 -p …
Sgt B
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Domain controller (AD) Time is 9/10 minutes fast

Our AD domain controller time runs 9/10 minutes fast. How do I resolve the issue? Note: I looked at several answers/posts, but did not get enlightened. Details: We have a Hyper-V Server, which hosts our primary and secondary DC (domain…
Sarah Weinberger
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Timesyncd with NTP server using md5

I have a FreeBSD server used as an NTP server with md5 as authentication. If I want to connect to it from a FreeBSD/Linux machine which has ntpd, I can simply add something along the lines of server 192.168.1.1 key 10 in /etc/ntp.conf and then…
Michael
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Increasing the accuracy of windows 2003 NTP time sync

Hi using w32tm or some other service (NTP W32Time) is there away to increase the accuracy of windows time to sync at-least every 1sec? Whats setup; windows 2003 AD environment with a few servers and AD clients. At the moment when users log on to the…
Darragh
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Using host as ntp-client and lxc-router as ntp-server

I installed ntpd on my Debian host machine to keep the hardware RTC "up-to-date". By sharing the system's clock the time gets automatically propagated to all installed containers (lxc). One of those containers runs my router. I'd like to use this…
Kai Giebeler
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Why would NTP service successfully exit?

I am having recurrent problems with stalled datetime on my virtual Debian 8 machine running in Windows 8 Hyper-V. I haven't done much of a post-install configuration, it's a deliberately rather vanilla install and no fancy stuff -- I just use the…
Armen Michaeli
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NTP client reseting date to 1970

I have and debian running NTP client, but this cliente is reseting date to 1970.....and doesn't show any error in log. This is that I tried: 1) date (shows 1970) 2) stop NTP service 3) ntpdate with server as parameter (date/time sync perfect) 4)…
Jonis Maurin Ceará
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Is it possible to get ntpdate working behind a proxy?

ntpdate command seems to ignore http_proxy ...
Benoît Guérout
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Sync Hyper-V Domain Controller to External Source for Time

I cannot for the life of me get my Hyper-V PDC (2012 R2) to sync with an external time source. I have tried a number of configurations but in the end I can only get the w32tm /query /source command to show either Local CMOS Clock or VM IC Time…
Martin
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Getting NTP to work on AWS without opening inbound port in security group

I have a private server on AWS that has no publicly open inbound ports. The only open port is SSH, and it's only accessible from other machines in the same subnet. This machine reads files from S3 over the network. Recently it stopped working…
z0r
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How to Configure Server 2008r2 as a NTP server when it is neither on a domain or a DC

Here is the setup: We have Windows Server 2008R2 servers at customer sites. For separation of trust reasons, those machines are not members of the Customers Domain. They are also not acting as a Domain host themselves, they are strictly stand alone…
Rowan Hawkins
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