Network Time Protocol, used to synchronize clocks on the Internet.
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1answer
20 views
system clock is 5.5 ahead although ntp
I've checked configs and even installed ntp server, nothing seem to fix this,
sudo dpkg-reconfigure tzdata
Current default time zone: 'Asia/Tehran'
Local time is now: Thu May 9 00:49:38 IRDT ...
2
votes
1answer
80 views
ntpdate[3912]: no server suitable for synchronization found
I've configured ntpd on a CentOs install with a simple /etc/ntp.conf with only 3 lines:
server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org
server 192.168.1.1
Unfortunately, no matter ...
0
votes
1answer
17 views
an unconfigured ntp server appears in ntp client's list in solaris 9
So i have a solaris 9 server with running ntp client
I want it to poll 10.10.1.122 (local ntp server, there is no internet access)
so i configured the ntp server in the config file (below)
however ...
1
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1answer
176 views
Portable command-line for syncing Windows OS clock to a NTP server
Is there a "portable" way across recent (this millennium) versions of Windows for forcing a NTP sync?
On Windows 7, there are even prerequisites - the service Windows Time needs to be running.
...
1
vote
0answers
39 views
Using NTPD as a client on Cent OS without Undisciplined Local Clock any disadvantage?
The following is the NTP configuration.
My server is a physical system, not a virtual machine.
The following ntp-4.2.2p1-15.el5.centos rpm I am using.
tinker panic 0
restrict default kod nomodify ...
1
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1answer
123 views
Windows XP NTP synchronization
I am getting the following error message when trying to synchronize a Windows XP to our NTP.
Works with all other Linux servers.
The message I receive is:
The time sample was rejected because ...
1
vote
1answer
1k views
Ubuntu 12.10 Clock is wrong
I have an issue with Ubuntu Quantal, as it shows the wrong time. It is completely messy, the right time from time.is now is 09.43 and my clock shows 17.48. I am using ntp service and I already checked ...
1
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0answers
214 views
Configuring ntp server on Ubuntu
I am trying to configure the time on my system, as per one of the ntp servers provided on net. However, the time doesn't change. I am doing this on Ubuntu 12.04 which is installed in Oracle VirtualBox ...
2
votes
1answer
597 views
How do I get the current date according to an NTP server without setting it locally?
I want to get the current date and time according to a remote NTP server, using Linux. I don't want to change the local time as a result; I just want to get the remote date, adjusted for the local ...
2
votes
0answers
215 views
Windows 8 w32tm clock drift correction
I am running Windows 8 (no virtualization, X79 + i7-3820), and have separate Linux NTP server in my local network. Linux NTP is typically within 1ms of true time.
I've set Windows 8 to synchronize ...
0
votes
1answer
206 views
NTP client not update
I have many linux Virtual machine on ESXI, I have configured one linux machine as NTP server and that server is updating its time from NTP server over internet, this server is working properly and ...
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votes
0answers
350 views
“net time” returns system error 5, “Access is denied”, even when run as administrator
I am trying to run net time on a Windows 7 box with an account that is part of the Administrators group.
When I run the command net time from an elevated command prompt I get the following error:
...
2
votes
2answers
2k views
NTP no server suitable
Been trying with a lot of configuration, following different tips but cant get it to synchronize with a server,
ntpdate -u 192.168.1.100
3 Oct 01:01:13 ntpdate[11170]: no server suitable for ...
3
votes
2answers
318 views
ntpdate with crontab or ntpd?
(1)autostart one ntpd service in all cluster nodes and point the reference serve to one LAN server.
(2)use crontab to ntpdate every certain minutes.
In cluster environment, which will be a better ...
1
vote
3answers
179 views
Why to synchronize a time on a computer?
Why do I need to synchronize a time on my computer?
My wrist-watch gives no more than half a second error per year without using any NTP server. Why do I need to synchronize a computer with other ...
3
votes
2answers
965 views
What happens when router has been set to incorrect time?
I have a D-Link router for my home Wi-Fi network. Everyday at least once the internet suddenly goes down. I am simply not able to connect to the Wi-Fi network.
If I just restart the router, it starts ...
2
votes
1answer
200 views
Correcting clock drift in VM guests
I have a Unix O/S running as a guest under a hypervisor on a Linux host. The guest OS clock is 2s adrift from the host after 24 hours. I'd like to keep clocks in sync to less than a second for ease of ...
2
votes
2answers
802 views
How does ntpstat work?
I have installed ntp on some of the network machines I am working on. When I check ntpstat, I see that it says clocks are synchronized to some ms, usually between 12 and 70 ms.
My questions are:
...
1
vote
1answer
458 views
Error occurred during NTP sync on Windows Server 2008 R2
I have two Windows Server 2008 R2 Standard servers. The first can correctly sync its time with the default NTP server time.windows.com, but the second cannot.
The error displayed is:
An error ...
3
votes
2answers
5k views
How can I query an NTP server under Windows?
I am not interested in synchronizing my local clock with the remote server. I only want to query it and print the result.
I would have assumed that there is a port of ntpq for Windows, but was unable ...
2
votes
1answer
100 views
Alternative to Qlock
I work in a NOC that needs to display times from different cities across two 50 inch screens connected to a single windows 7 enterprise box.
Currently, we are using http://www.qlock.com/ but I would ...
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0answers
124 views
Modem not syncing with Time Servers?
My modem has a parental control feature which I want to use and I know how to configure it. The problem is this feature requires the exact current time to work. My modem can sync with the internet ...
5
votes
3answers
348 views
Does it matter which NTP time server do I choose in Windows?
When enabling Windows to set system time via Internet, I'm presented with the following dialog:
Does it matter which time server I choose?
How would I know if one was "better" than the others?
2
votes
3answers
41k views
How can I check a system's current NTP configuration?
I need to verify the current NTP configuration on some Windows systems. Ideally, I'd like to be able to do this via command line instead of navigating through configuration screens (especially since ...
0
votes
1answer
2k views
Determine the time difference between two linux servers
I am troubleshooting a latency network issue on a network. It is probably a nic or cabling issue, but while I was going through the process of figuring it out, I was looking at the timings of a ping ...
1
vote
2answers
2k views
My system clock is an extra (extra) hour ahead during BST/ daylight saving
I have a problem when my Windows 7 64-bit laptop is used during BST (British Summer Time)/ daylight saving periods.
Instead of the +1 shift in time, the system clock shifts +2 hours and can be a few ...
0
votes
1answer
508 views
How to configure Windows Server & Desktop OS to use multiple Network Time (NTP) Servers?
We experienced an outage in our usual NTP (Network Time Protocol) server - a Linux box that we sync all of our systems to.
I am noticing that in the "Adjust Date/Time -> Internet Time" tab I can set ...
1
vote
1answer
406 views
How inaccurate must the clock's time be for NTLM requests to be denied due to the time being incorrect?
We have a network where the time on some of the client workstations is inaccurate. There is a problem with NTP on the clients or domain controllers causing the time to not synchronize. We are ...
2
votes
0answers
885 views
Allow LAN clients to sync time through DD-WRT
I'm having problems when syncing time trough DD-WRT. I have multiple LAN clients and none of them seems to be able to sync time with an internet time server. I have a TP-Link WR1043ND that does this ...
2
votes
1answer
3k views
How to Get Standalone Windows 7 Cannot Sync Time (NTP)
I am trying to get my Windows 7 Professional Machine to sync time correctly. This laptop is not a member of any domain.
If I try to go to the clock settings, Internet Time tab, and click on "Update ...
9
votes
1answer
3k views
How to synchronize clocks for computers that are not online?
I have some computers that run Windows 7 embedded and are connected to each other by a switch, but are not connected to a larger network or the internet. After a few weeks, the clocks drift and it is ...
0
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0answers
207 views
How to skew a Mac's clock 10 minutes while still keeping it “synchronized”?
My wife is always running late. How can I skew her Mac's clock 10 minutes while still keeping it "synchronized"?
I looked at the fudge setting of /etc/ntp.conf but it's only for a Reference Clock and ...
0
votes
1answer
109 views
Can I copy the ntpdate binary from another machine in order to update date & time?
On my Red Hat 5.3 Linux machine, NTP isn’t installed (can't install it for some reasons). However I can copy the binary /usr/sbin/ntpdate from another Linux machine to mine.
If I only get the file ...
0
votes
1answer
86 views
Stopping ntp - time is still jumping back in Debian
I do something like:
service ntp stop
503 date +%T -s "15:10:00"
But after a while it jums forward to the correct time (If I put it forward in time, it seems to be working).
This is a VMWare Linux ...
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0answers
212 views
Change system time and turn off Internet time in Debian/Gnome
Changing the time is easy, but then it is automatically synchronized with a time-server.
Before I had access to admin menus, but now I don't, when I click on the clock and try to change, i get an ...
1
vote
1answer
587 views
Public, reputable sources of time sync via HTTP to use where NTP is blocked?
Let's say I'm in a corporate network where the NTP protocol is blocked, the BOFH^H^H^H^H sysadmins won't unblock it, and they didn't bother to set up a good internal NTP server. What's a good source ...
1
vote
2answers
4k views
Time problem in ArchLinux
I use ArchLinux and I have had problems with my system time for many months.
Previously it was working, but once I updated my PC, the system time was shifted at every startup (like it wasn't ...
3
votes
3answers
449 views
Can you help me find an NTP time server that is synchronised with an atomic clock?
I would like to be able to read the time from an NTP server that is connected to a very accurate time source - an atomic clock, GPS clock, or similar. I can see an accurate clock here ...
1
vote
1answer
6k views
NTP sync on Windows 7
How would you make a Windows 7 machine sync with free ntp servers on the Internet?
This details for Windows Server 2008, but after tweaking the registry and trying to restart the service, it doesn't ...
2
votes
2answers
534 views
NTP sync… doesn't
Following the instructions here, I've manually configured the Windows Time service to use an external time source.
As I noticed the server's clock drifts very fast (1s per 40min), I set the ...
0
votes
1answer
4k views
NTP sync on Windows Server 2008
How would you make a Windows Server 2008 server sync with free ntp servers on the Internet?
What free programs would do this?
How do you configure them? (I need it to sync every 30sec as the server's ...
5
votes
3answers
6k views
How to use ntpdate behind a proxy?
Is it possible to use ntpdate behind a HTTP proxy with authentication? In case it is not possible, are there any good alternatives?
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votes
2answers
176 views
NTPd giving the wrong time
Running ntpd -q on a Fedora 14 VM gives the wrong time. I'm in the UK so my time should be UTC+1, but instead it's 6 minutes behind what it should be.
Anyone know why this might be and how to fix it?
...
0
votes
1answer
142 views
How to track when Linux determines time without NTP with some other method?
When a Linux machine with NTP capabilities will start and it does not find the NTP server, how it will determine the time? A clue I have is that it uses some heuristic method but I don't need what ...
4
votes
1answer
436 views
Computer clock drifts on standby. Can I make Windows synchronize time on every wakeup?
My Dell Vostro 1720 laptop's clock drifts when waking from standby mode (even by five minutes sometimes). This is really annoying and sometimes dangerous.
I tried decreasing the Windows time sync ...
0
votes
3answers
687 views
Using nc (netcat) to emulate NTP server response
I want to test some security on an NTP client developed in-house and would like to use netcat to do it. I have packets captured with Wireshark from previous NTP exchanges that I tried to feed to the ...
3
votes
1answer
5k views
How to synchronize to a NTP server on Windows XP?
My Windows XP doesn't have the synchronization tab under Control Panel > Date and Time settings. I tried to change the related registry settings, and it worked only for my Windows 7. What else should ...
1
vote
2answers
642 views
Ubuntu time issues
I am having a tough time getting my Ubuntu Virtual Machine to display the proper time. It is on an ESXi server and the version is 8.10 LTS it came with a virtual appliance for Opsview. I have ...
0
votes
1answer
685 views
Set Windows system time from command line similar to Linux rdate command
I need to set the time on a Windows 2008 server via an internet clock server from a command line, and ensure that Windows 2008 doesn't do it by itself.
I will use this for a .cmd file which looks ...
2
votes
1answer
365 views
Slow connection and NTP
I'm behind a slow connection (Dial Up) with high latency (+400ms). I have recently received a broken MyBook World, which I refurbished and I have Debian installed on it.
The problem is, that this ...
