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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.

717 questions
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Meinberg ntp for Windows - force more frequent updates?

I have a Windows VM that has time drift problems, and left to its own devices will drift by minutes per day. I know there are issues with time on VMs, but I was hoping using the Meinberg NTP service would be successful. It works, generally, in that…
annaken
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How to return to Default settings of NTP/Time server on domain with GP

This is an Edit - according to the comments, I may have not been understood/ Facts: I have a Windows 2003 Domain PDC Emulator is enabled and working correctly on my DC I have a GPO that is NOT working correctly I WANT my clients to sync with the…
Saariko
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NTP on main server, and alternative on virtual (LXC)

I am setting up a server with several VPS. I am using LXC. I am thinking it would be better to have only the main server equipped with ntp and have the virtual boxes just get the time from the main box. Is there a bash/python/php etc script I could…
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Is it possible to monitor NTP through SNMP in Linux

Is it possible to monitor the NTP drift value ( I mean measuring the time difference between the NTP server and the server that I am trying to monitor) using SNMP.
user1081337
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How to configure an authoritative time server in Windows Server

I have a performance lab running behind a firewall, so none of the machines in the lab has internet access. All machines in the lab are part of a domain with the domain controller also present inside the lab. The problem is that some server's time…
Gineer
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Issue with NTP configuration

I am working with RHEL-6 64 bit server. When using ntpq -p I get the following result: $ ntpq -p localhost: timed out, nothing received ***Request timed out With RHEL 5.4 we were using a ntp configuration as below: # /etc/ntp.conf server …
Arunjith
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ntpd Stratum Zero when nptd is started

I have noticed that when I start ntpd on a server, checks against that server reveal that it has a stratum of zero. If I understand this correctly, I believe this means that ntpd is currently only using itself as the time source. After a minute or…
Kyle Brandt
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Seemingly high clock skew between four systems, normal?

I'm researching a bit of a problem maintaining time synchronization between systems. I finally decided to measure the actual clock variance between hosts, and found that over the course of 13 hours, there was a rather large (IMO) drift. Relative…
Bob
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Windows Server 2008 Event ID 1 Kernel-General .... time sync?

Recently noticed that every once in a while only our 2008 servers log this event ID and adjust the time usually 3 or 4 seconds. What is this and why have I never noticed before? They are all set to sync off of one of our domain controllers. I've…
John
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How often does openntpd update the time?

Neither the openntpd nor the ntpd.conf manpage have this information.
John Bachir
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w32tm returning inconsistent results

We've got a Hyper-V environment where the time is running around like a headless chicken. Some days when I come in, it's 10 minutes slow. Other days, it's 5 minutes fast. Today it's over 30 minutes slow. Every day I re-sync the time manually, and 24…
Mark Henderson
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ntp service on linux, not running after reboot

The time on my server has been synced properly for a few weeks now, then we rebooted the server last week, today it's 10 minutes off. I did "sudo ntpdate ntp.ubuntu.com" and got: 4 Oct 14:22:08 ntpdate[17734]: the NTP socket is in use, exiting I'm…
Ben
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backup email log script spams me: crazed BASH expansion

I have a BASH script that "reads" the backup logs, reports the success/failure of the last backup, lists the contents of the backup directory then emails the results. After moving the backups to a new server and turning the email routine into…
Bubnoff
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At Windows start up the Time Service takes about 30 minutes to converge

I'm looking for information on how the Windows TIme Service over a domain affects the hardware clock. The machines are clients on a Windows AD domain with the basic time services. It's not our network so I don't have a lot of detail. 1) We are doing…
Rich Shealer
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Can time skew on Windows be reduced to +/- 5ms?

A number of our Windows workstations, running ntpd, simply cannot keep time. Our Linux workstations and servers running the same ntpd config don't have this problem, they can stay within +/- 5ms of skew. The Windows hosts easily drift to seconds…
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