2
votes
0answers
65 views

System clock jumps over 50 seconds randomly

Having a really strange and frustrating issue with system clocks across a few (non virtualized) Ubuntu 12.04 servers. The system clock jumps unpredictably by over 50 seconds. Here's a part of the ...
0
votes
2answers
128 views

Set NTP not to receive time from peers on Ubuntu

In my /etc/ntp.conf, it says By default, exchange time with everybody, but don't allow configuration. restrict -4 default kod notrap nomodify nopeer noquery restrict -6 default kod notrap nomodify ...
2
votes
3answers
244 views

Allow NTP to update by large amounts automatically?

Here is my scenario: I run multiple VMs on my workstation to simulate the production environment. At the end of the day I sleep my workstation (with my VMs running in the background) at 6PM. When I ...
0
votes
1answer
154 views

NTP synchronisation not visible in syslog

I am trying to set up a local NTP server for our LAN. I am able run ntpdate server_ip to manually update the time. However, ntp daemon does not seem to be logging anything into syslog, and so I can't ...
1
vote
2answers
1k views

enable/disable ntp service on ubuntu 12.04

Our application runs on Ubuntu 12.04 Precise. On this server, we have both ntpdate and ntp. How to enable and disable the NTP service on-demand? I tried # sudo update-rc.d -f ntp remove/default ...
1
vote
3answers
215 views

Time Synchronisation of Virtual Machines without connecting to the Internet

I have a setup of 8 VMWare VMs running across 4 EXSi hosts(IBM Blade Server). For some reasons I cannot connect these VMs or the EXSi hosts to the Internet or any other network. Now I want to ...
1
vote
2answers
375 views

ntpdate wrong date

Hi all I have an ubuntu8 server where I have problems with date. My current date (Europe/Rome) is 9:35 If I do date print me 11:12:34 I have seen my ntp.conf is: server 0.ubuntu.pool.ntp.org ...
0
votes
1answer
99 views

Need one time server clock sync for latency test, what should i use ntdate or ntpd

All machines are Ubuntu I need to sync clock one time for all machine in order to do a latency test. I read this article that said - ntpdate is a bit of a blunt instrument - it can only adjust ...
2
votes
2answers
196 views

Crazy VM clock drift

This is taken from an Ubuntu 10.10 VM running on ESX5: Nov 3 21:58:50 server1 ntpd[21169]: adjusting local clock by 31.187370s Nov 3 22:02:36 server1 ntpd[21169]: adjusting local clock by ...
7
votes
3answers
1k views

NTP Server with no connection to the internet

I have a small LAN that has no connection to the internet. It consists of two ubuntu servers clustered together providing NFS services to two IP cameras. I need to synchronize the time on all the ...
2
votes
2answers
2k views

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 ...
1
vote
1answer
1k views

ntpd doesn't seem to sync at all

I am following this tutorial It's 2008, so I am very careful using its advice. I need to make this machine the master, and let all other machines use it to sync the time. They are all out of sync by ...
1
vote
2answers
641 views

Ubuntu Enterprise Cloud - NCs down and time synchronization

I'm having trouble with my cloud installation. I've installed everything from the Ubuntu Server 11.04 CD, then upgraded the system to the latest version (apt-get update && apt-get ...
0
votes
2answers
2k views

How can I install ntpstat on Ubuntu?

I'm running Ubuntu server 10.04 64-bit. What I've tried: apt-get. doesn't know of it. downloading rpm from here and converting with alien dpkg-gencontrol: error: current host architecture 'amd64' ...
2
votes
1answer
1k views

How can I sync time between two ubuntu computers, not connected to the internet

I have two computers connected to each other over an ad-hoc wifi. How can I make the first computer always sync to the time of the second computer? I tried playing with NTP, but could not figure out ...
1
vote
3answers
339 views

Unix timestamp deviation

I have two Ubuntu servers which synchronize their timestamp to europe.pool.ntp.org every night. Just before they sync, I can see a difference of 4 seconds between the two servers. One of the servers ...
9
votes
7answers
47k views

Why is ntpd not updating the time on my server?

I have ntpd running on my server. It's all the default settings, except I commented out its ability to be a server to other machines: # restrict -4 default kod notrap nomodify nopeer noquery ...
2
votes
3answers
1k views

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 ...
0
votes
1answer
184 views

How was my ubuntu server's time set without ntp?

I was just installing ntp on an ubuntu server that had the wrong time by a minute, and I got to wondering, how did it get any time at all to begin with? Is there some other process that sets the time ...
1
vote
3answers
251 views

What is the most simple way to automatically update the time on a server?

On ubuntu server my usual solution is just to install the ntp package and call it a day. This installs all the binaries I need and has ntpd start at boot time. Right now I'm working on a server ...
2
votes
4answers
7k views

Best practice for system clock sync on KVM host

I have an Ubuntu 9.10 server running as a KVM host with ntpd installed on it. The host system has the correct system time. At the moment I only have a single KVM guest, also Ubuntu 9.10 server. I do ...
3
votes
3answers
6k views

How do I stop the clock running fast on a virtualbox client running ubuntu 8.04?

I'm having a problem with the clock running fast in Ubuntu 8.04 server (2.6.24-24-generic kernel) running in VirtualBox 3.04. It's drifting quickly, something like 5 minutes per hour. I think it was ...
4
votes
2answers
3k views

Why does Ubuntu 9.04 reset my Windows clock?

I've got a rig with 2 hard drives. I've put Ubuntu 9.04 (Jaunty) on one of the drives and Windows Vista SP2 runs on the other drive. I went with this approach rather than dual boot since I wanted to ...