Questions about the NTP protocol and applications that use it. NTP is an acronym for Network Time Protocol.

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2
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1answer
170 views

Is there a way to make ntpd -gq run faster

This question is related to this question and this earlier question I asked on serverfault. Per my previous question, I'm interested in synchronizing the time on my machine in a fast (ideally less ...
2
votes
1answer
133 views

Force ntpd to have offset from time server

Is it possible to force ntpd to have a fixed time offset, e.g. 10 minutes, to another server? To be able to test that our devices do nicely sync with a single ntp source, we would like enable/disable ...
1
vote
1answer
99 views

Is there a program for analyzing NTP server statistics?

I'm running Ubuntu 12.04 and have the NTP server running, apparently OK. I run the Meinberg NTP server on my two Windows 7 boxes and use its associated server monitor to keep track of what it's up to. ...
1
vote
1answer
441 views

Synchronise clocks on ubuntu running in EC2?

I've got three servers running on AWS EC2 using official Ubuntu AMIs using paravirtualisation. I have noticed their clocks are out of sync by about a minute. NTP is not installed by default in the ...
0
votes
1answer
106 views

NTP not working in ubuntu 14.0.4 LTS

Is there any other way to sync my server close with external server. Some how NTP is not working in my Ubuntu server. sudo ntpdate -u pool.ntp.org no server suitable for synchronization found” ...
0
votes
1answer
33 views

ntp possible on ad hoc network in ubuntu ? 12.04 onwards

I am doing a research project on Vehicular Ad hoc networks.. I am using C programming language for socket programming, with four laptops installed with Ubuntu 12.04 and 14.04 versions. All the laptops ...
0
votes
1answer
70 views

How to time sync two systems in same network?

I want my laptop to derive it's clock time from another system which is located in another building.Both the systems use Ubuntu 12.04
0
votes
1answer
665 views

enable/disabling NTP server

Our application runs on ubuntu 12.04 precise. On this server, we have both ntpdate and ntp. How to enable and disable NTP service on-demand? I tried 'sudo update-rc.d -f ntp remove/default' and 'sudo ...
-1
votes
1answer
266 views

How do I make my laptop act as an NTP server in LAN without connecting to the internet?

I need to set my laptop as an NTP server within my own local area network. From what I notice, I am able to sync the client to my NTP server in a local area network ONLY when a.) There is an ...
2
votes
0answers
225 views

NTPD segfaults on 12.04 LTS (64-bit)

Fresh install of Ubuntu 12.04 LTS. Installed ntp, but starting the service only results in the following error: grsec: Segmentation fault occurred at 0000000000000008 in /usr/sbin/ntpd[ntpd:28951] ...
1
vote
0answers
888 views

server time drift not fixed by ntp.conf

This question was asked a lot in the past, but since ntpdate has been depricated, I'm having issues finding answers that work via ntp.conf. I've read a lot about setting a cron job for ntpdate is a ...
1
vote
0answers
53 views

start ntpd -qg after network connection

I am trying to synchronise two machines that connected over ad-hoc network. None of the computers are connected to the internet. One computer doesn't have a Real Time Clock, so everytime I reset it, ...
1
vote
0answers
215 views

NTP service, offset increasing after sync

I have installed Ubuntu 12.10 version on my PC. I am running NTP service having NTP server as GPS. I found that when we start NTP service by ntp start command, PC is able to sync with GPS as I get ...
1
vote
0answers
120 views

How to configure NTP with permanent slew adjustments?

There are several questions that I hope the community can assist with: Is the following approach correct and a recommended best practice? Would ntpd with the -x option be persistent even after a ...
1
vote
0answers
208 views

system clock is 5.5 ahead although ntp

time zone here is Asia/Tehran, but the ubuntu time is 5H30M ahead of local time. I've checked configs and even installed ntp server, nothing seem to fix this, sudo dpkg-reconfigure tzdata Current ...
0
votes
0answers
36 views

NTP clients are not continuously sync with Master NTP server in Ubuntu

I created Master NTP server on one first Ubuntu server and one NTP client on second Ubuntu server. My main problem is NTP client not continuously sync with Master NTP server, I have to restart the ...
0
votes
0answers
19 views

How does the ntpd -N work?

I read on the ntpd man page that ntpd -N runs the ntpd at the highest priority to the extent permitted by the operating system. I want to know how this works? Which are the kernel processes which ...
0
votes
0answers
75 views

How to configure NTP time sync on a controller node

In a new installation of ICEhouse on Window8.1 Host and VMware VMs - 3 node configuration, I don't know how to configure ntp all nodes. Ther are 3 node Controller Node , Network Node and Compute ...
0
votes
0answers
67 views

Ubuntu NTP time wrong after reboot

Running 12.04LTS for a while now. When we reboot, the server comes on with the time 46 minutes slow. nearly every reboot. We installed ntp (apt-get install ntp) so the time does auto-correct after 4-5 ...