0
votes
0answers
11 views

How to setup a NTP Server on Freshly installed Windows Server 2003?

I am to replicate a scenario of a deployed site in which they use the Window's Time Sync feature (found in this tutorial) to connect to a local time server and synchronize their time. So I prepared a ...
1
vote
0answers
20 views

NTP Multicast configuration

I'm trying to get NTP multicast set up between a few computers. Right now I'm getting NTP multicast packets from a computer that I have neither access to nor information on (let's call that A) that is ...
1
vote
0answers
59 views

Why does NTP require bi-directional firewall access to UDP port 123?

From What are the iptables rules to permit ntp?: iptables -A INPUT -p udp --dport 123 -j ACCEPT iptables -A OUTPUT -p udp --sport 123 -j ACCEPT Also, from the NTP website: ... ntpd requires ...
1
vote
0answers
49 views

NTP syncs with ntp.ubuntu.com but not with the pool options

I am trying to configure my ntp server to synchronize with ntp servers available online. Below is my /etc/inet/ntp.conf and my ntpq -p output # ident "@(#)ntp.server 1.6 00/07/17 SMI" # # ...
1
vote
0answers
54 views

how to trace and correct the source of time difference between two different clients having the same NTP Stratum 2 source

My standalone server is connected and taking time from a dedicated NTP hardware that is synced to UTC through GPS. All clients in the network are connected to this stand alone server and the clients ...
44
votes
4answers
3k views

NTP - How are NTP servers so accurate

I've noticed that on my servers and other machines the clock always drifts so it has to sync up to remain accurate. How do the NTP server clocks not drift and always remain correct?
0
votes
1answer
67 views

Daylight savings issues in windows, possibly related to NTP sync

We have an app deployed to information kiosks across a number of sites, where employees of our client can log in and sign-on/off their shifts and view timesheets etc. Approaching every daylight ...
0
votes
1answer
339 views

Why does my router send an NTP request to ntp.nasa.gov?

I have enabled logging on my router and restarted it. At the end of the log file it says: Sat, 2000-01-01 02:02:19 - Send out NTP request to ntp.nasa.gov Wed, 2014-01-15 18:01:39 - Receive NTP Reply ...
0
votes
2answers
385 views

How to setup robust Windows time synchronization?

I have an incorrect time on my Windows machine. I'm not sure how to specify the proper timezone and setup an NTP synchronization. When i'm using a dualboot configuration with Linux (Ubuntu) my time is ...
3
votes
1answer
343 views

NTP daemon or ntpdate doesn't synchronize

I'm having some problems with synchronization with an NTP server. 1) The NTP daemon doesn't sync the system clock at all, even though it's running (confirmed with /etc/init.d/ntp status). Forcing to ...
7
votes
3answers
14k views

Updating Time : ntpdate[3108]: the NTP socket is in use, exiting

The time on my system is incorrect for some reason. i need to run an update but i can't seem to be able to this is the errror. ntpdate pool.ntp.org 31 Aug 12:31:59 ntpdate[3108]: the NTP socket is in ...
2
votes
2answers
694 views

Os X - Why do I need to turn on WiFi to determine closest location

Why do I need to turn on WiFi to determine my closest location? For some reason, my mac won't get the latest time from the NTP server if I am plugged into Ethernet. What could possibly be different ...
1
vote
2answers
1k views

How to connect to time server behind corporate firewall/proxy server?

I am setting up an internal web server at big company and we recently changed proxy servers companywide. So time sync won't work. Tried all of the W2008 defaults, tried resetting the time service... ...
0
votes
1answer
112 views

Serving manually set time

I have set my NTP config to this: # local server server 127.0.0.1 fudge 127.0.0.1 stratum 10 # Only allow read-only access from localhost restrict -4 default kod nomodify notrap nopeer noquery ...
2
votes
1answer
94 views

How to isolate why my system date is going crazy?

The date on my x86 machine is going crazy. When I boot, it's in 1980 (as expected since the CMOS battery is dead). So I NTP sync it with no problems. Some time later (within a few hours, and even ...
2
votes
1answer
393 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 ...
2
votes
3answers
244 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 ...
1
vote
1answer
796 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 ...
2
votes
1answer
187 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 ...
6
votes
3answers
1k 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?
11
votes
3answers
152k 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 ...
2
votes
2answers
5k 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
1answer
783 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
1answer
5k 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
7k 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 ...
1
vote
0answers
272 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
158 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
137 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 ...
3
votes
2answers
2k 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 ...
2
votes
2answers
7k 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 ...
5
votes
1answer
735 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 ...
1
vote
2answers
853 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 ...
3
votes
2answers
984 views

Synchronizing time within workgroup

I have workgroup consisting of three Windows 7 computers without access to Internet. My wish would be to synchronize time across all by making one of them NTP server. Is there any free NTP server out ...
1
vote
4answers
9k views

Mac OS X Date & Time Synchronization

When I have set Mac OS X to set it's date and time automatically, how often is this really done? And is there a way I can force an update?
7
votes
1answer
3k views

How to increase frequency of time server synchronisations?

I have a that PC (Windows XP SP3) keeps losing time whereby it ends up being about 5 mins slow per day from all the other PCs and clocks about the place. Is there a way to increase frequency of ...
4
votes
4answers
10k views

Why is my NTP controlled computer clock two minutes ahead?

The clock in my computer is configured to be synchronized using NTP. To verify this I have tried two NTP clients using various NTP servers. My computer and the NTP clients are in complete agreement ...
2
votes
2answers
1k views

ntpd update interval?

How often does the NTPD service update system clocktime by default?
1
vote
3answers
3k views

Sync the clock on Windows 7 to the time server more frequently

On Windows 7, is the way to sync the clock to the time server more frequently still the same as before (by regedit)? Are there other ways such as by using the control panel or system tool?
5
votes
2answers
14k views

I get “An error occurred while Windows was synchronizing with [name of time server].” when trying to automatically synchronise PC time

Prompted by the answers to this question I decided to give the Windows built in time synchronisation another go. However, no matter what time server I use I get this error: "An error occurred while ...