Time is a dimension in which events can be ordered from the past through the present into the future, and also the measure of durations of events and the intervals between them.

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Linux Centos 6.2 “hangs” until date is synchronized

I'm having a problem that i cannot understand why or how to solve it. I have a Centos 6.2 server, that's my secondary DNS (bind 8) and DHCP (ISC's dhcp server). I need to maintain an accurate date ...
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1answer
1k views

Correct time drift throughout entire Windows domain

I have done a lot of research but failed to find a reliable answer to our problem. The short story is our entire Windows domain is running 35 minutes slow. I.e. servers and workstations. I think ...
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1answer
8k views

Windows Server 2008 R2 time keeps changing unexpectedly

There is a serious problem with one of my servers time. At some random hours (5:59 localtime in the following example) it goes 1 hour back and keeps doing this again and again next times it reaches ...
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1answer
819 views

ntpdate cannot receive data

I have a problem where running ntpdate on my server doesn't return any data therefore I get the following error: [root@server etc]# ntpdate -d -u -v time.nist.gov 12 Apr 01:10:09 ntpdate[32072]: ...
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1answer
654 views

Measure query execution time in bash

I need to measure a query total execution time from inside a bash script. Somebody told me to submit something like: mysql --user="someuser" --password="pw" -D "dbname" -e 'your-sql-command;' Is ...
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1answer
810 views

Time sync fails on Hyper-V VM, but succeeds when I log in as a domain user

We have a Windows Server 2003 SP2 VM running on Hyper-V (Server 2008 R2 host). The VM has Hyper-V time synchronization enabled. I noticed that the time on the VM was fast by around 25 minutes. I saw ...
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1answer
272 views

Multiple NTP Server Instances on One Server (Linux)

Is it possible to run multiple NTP server instances on the same system? We're using CentOS for our NTP system and want to synchronize specific time depending on what interface the client comes in on. ...
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2answers
3k views

Increase rsyslog/syslog precision to include fractional seconds?

I use syslog and rsyslog to handle logging on my Linux & FreeBSD systems. The timestamp is currently in seconds but I would like to increase the precision of these timestamps to include ...
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3answers
471 views

Windows time command equivalent

There is a command in Linux that outputs system utilization called time. Is there a Windows equivalent? Or how else can I manually use the task manager commands in a batch file?
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1answer
272 views

How to find date/time used by Cassandra

Earlier this morning I noticed that one of the nodes in our Cassandra cluster is writing logs an hour in the future, despite the date/time being correct on the OS. A couple of other nodes I checked ...
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1answer
211 views

Re-Syncing and Updating Domain Controller Clocks

Right now in Windows Server 2008 R2 I have ran this in the Administrator: Command Prompt. w32tm /config /manualpeerlist:bigben.cac.washington.edu /syncfromflags:MANUAL net stop w32time & net ...
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2answers
68 views

What would be the down sides of running a VPS on GMT time instead of American time?

I have a VPS which is hosted in America somewhere. It's alright and does a job. However, while configuring the web mail system on the VPS, I noticed that the time displayed was for America and not ...
0
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1answer
53 views

process in the background

I have loop in shell script and it takes time process only a few files in the list. How do I push the process in the background and select the next file while the first file is still being processed? ...
2
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1answer
163 views

RHEL: Timezone change affected processes

I'm having troubles by a recent time zone change (the time went an hour back). Even though using the date command returns the correct time and date, i'm having trouble with programs that use log4j (it ...
1
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3answers
314 views

Problems with time correction on Debian

I am trying to correct the time on the Debian server. I selected my timezone in the /usr/bin/tzselect I select the correct continent and country, when the system asks me if the date is correct and ...
0
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2answers
304 views

Add time to Windows script

I have this mini Windows Script which is execute every hour it basically create a file every hour but I need to rename the file using date (which is already done) but I am not able to add the time ...
2
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1answer
165 views

Do CDMA based time servers passively read timing information from the cell network?

GPS based time servers are receive only, that is, they passively read the timing information from the GPS network. Do CDMA based time servers work the same way? In other words, do CDMA based time ...
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3answers
13k views

How to convert 'dmesg' time format to 'real' time format

I have (for example) this log entry in dmesg output: [600711.395348] do_trap: 6 callbacks suppressed Is there a possibility to convert this 'dmesg' time to 'real' time to know, when this event ...
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1answer
260 views

How to prefix logs with date and time

How to prefix all logs with date time before they are written to the log file? Let's say I am logging unexpected errors in crontab in the following way: python somescript.py >> /tmp/output.log ...
0
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1answer
433 views

running cron once a minute 8am-8pm

i need to run cron job once a minute 8a.m. - 8p.m. my code is: */01 8-20 * * * user /usr/bin/php -f script.php > /dev/null but it seems to fail..
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3answers
111 views

2008DC Time Server

OK, stupid question for the day ;) How do I setup a 2008R2DC to be the domain time server? I have the link to the MS KB article and I have the link to the pool.ntp.org site with a whole bunch of ...
5
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3answers
725 views

Clock is 10% faster than normal

I'm having some strange problem with the clock on my server – it's about 10% faster than normal. The problem started 2 days ago and I've not done anything special with the server. I tried to turn of ...
4
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2answers
8k views

How to temporarily stop time syncing with domain controller?

I wish to do some testing on my local machine which requires me to put the date forward a year. So I can test some stuff in SQL Server (i've found it not possible to override the sql server time). ...
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3answers
2k views

sync time on linux using ntp and persist it

on linux to sync time with ntp you say ntpdate pool.ntp.org however after reboots, the time gets reset to some odd value again. is there a way to persist the changes? how do I set the computer ...
2
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4answers
401 views

Anybody tried to use graphic card as a precision clock on a Windows server?

I am thinking (constantly) how to make my server be synchronised better than it is. I run some cheap app which syncs me with some stratum 2 server on the colo and drift is about 1-2 ms per 10 sec ...
2
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2answers
299 views

Windows 2008 - Time Sync

What is the threshold in Windows 2008 when the local clock differs from an NTP source and it will not synchronize? For example, if the local time is off > 2 days, will NTP still sync? Is there a ...
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1answer
2k views

Windows 2008 R2 64 bit multihomed. NTP time synching issue

I have a DMZ machine that i wish to sync to a time source ().pool.ntp.org. Perimeter Firewall is setup to allow relevant ports through. Obviously local FW on the server is on and configured to allow ...
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2answers
2k views

How can I allow a limited user to change the system time in Windows 7 without disabling UAC?

I need to allow a couple specific users rights to change their local system time in Windows 7 x64. I have already assigned them the right through group policy using the "Change the system time" user ...
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1answer
1k views

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 ...
5
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2answers
199 views

date +%s glitches

I have a strange issue I'm starting to troubleshoot and wondered if anyone would have any helpful tips. I have a cronjob executed every minute that executes a script and appends the output to a file ...
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2answers
90 views

Run a job once at a specific time

I'm trying to create a cron that will run one time at a specific time. For simplicity, how can I create a cron that will run at 11:57PM and print "Hello" to the screen then delete itself? (Cent OS 5) ...
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1answer
82 views

Is it possible to set the date/time on a Fedora 14 server and have it retain the setting on reboot

I've successfully set the date/time and, after reboot, it is reset [or, at least, off]. I use Linode to host the F14 VPS. Fix: set proper time zone in /etc/sysconfig/clock
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1answer
1k views

Syncing Domain Controller Clocks

It appears some computers in our computer lab have clocks running about 3-4 minutes fast. As of right now, when we join a computer to the domain, it sets the clock based on our server's Domain ...
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1answer
156 views

Current time is off on a Windows 2003 Server DC

I have a single server that is also a domain controller in a cabinet, there are no other servers attached to its domain. I've reset the time in the BIOS (from what I recall) and in Windows to the ...
18
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2answers
2k views

What is the largest hardware clock update the Linux kernel “11-minute mode” can make?

When certain time-related programs (like ntpd) are running on a Linux system, the kernel will switch into so-called "eleven minute mode" (see the hwclock man page) whereby it will automatically update ...
1
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2answers
24k views

WS2008 NTP - Using time.windows.com,0x9 - Time always skewed forwards

I have a domain controller configured to use time.windows.com (with 0x09 flags set). I've noticed that frequently the systems' clock is fast - it varies from 10 minutes to even 45 minutes. I always ...
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1answer
5k views

Using w32tm to resync all computers on a domain

I've noticed the time on all of our computers seems to be off by about 5 minutes. I think most computers are set up to sync time with one of our servers. after running a net time or a w32tm /query ...
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1answer
1k views

Fake Server Uptime (Linux/Windows) [closed]

Is it possible to fake the server uptime in any way (throttling the time).?(Linux/Windows). I guess it will cause serious troubles, still just wondering. -Cheers
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1answer
65 views

Windows timezone

In Windows, we can change timezone easily. But I have one question. In the dropdown list, there are several options for the same timezone. For example, for UTC+8, we can see these options: (UTC+08:00) ...
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2answers
712 views

How to synchronize windows server date/time?

I administer multiple Windows servers. One issue I have is that the time gets out of sync, and this becomes noticeable over a week or so. For example, my app server system time could be different ...
2
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1answer
422 views

Who sets NFS modification time - client or server?

I was curious about what exactly time is going to NFS file metadata when client writes a file. My assumption is that client time is recorded and not NFS server's time. But I wasn't able to find out ...
4
votes
1answer
817 views

server restart after timezone change

Is it required that the server should be rebooted once I change the time? I ran into trouble when I changed the datetime and did not restart crond. Is there any other service that may have issues ...
1
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1answer
85 views

print from a specific time in a log time

I wrote a script to print 5 days prior to the end of a log file ! and now I want to change it in some way to print 5 hours prior to the end of the file ! this is the script : for d in \ $(sed ...
0
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1answer
2k views

nginx with php5-fpm, maximum execution time exceeded

In php.ini I have set "max_execution_time = 1200", phpinfo() confirms that, but my script stops after 300 seconds with message: "PHP Fatal error: Maximum execution time of 300 seconds exceeded" ...
2
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2answers
153 views

Better to use same or closer NTP servers when distributed?

I have a group of servers located in several data centers. They should all be synced so that they have the same time, and ideally, should also have the correct time. Is it better to sync them all ...
4
votes
2answers
5k views

datetime format changed between mysql 5.0 and 5.1?

I've upgraded a mysql slave from mysql 5.0 to mysql 5.1. during the catch up, the replication failed on a query with incorrect datetime value: 110919 13:56:18 [ERROR] Slave SQL: Error 'Incorrect ...
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2answers
547 views

Linux time incorrect

I've a Ruby file which executing creates and XML file and saves it. Every time it does it the time for the file (last modification) is incorrect (1 hour ahead). I also noticed that cron jobs execute 1 ...
2
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2answers
1k views

converting INT to DATE / TIME

I have a table that holds date and time values as INT data type. eg a date is stored as YYYYMMDD, like 20110901 and a time is stored as HHMMSS, like 21826. The date is close to ISO standard so its ...
2
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3answers
7k views

Windows Time out of sync

We have 5 virtual Windows 2003 servers running Citrix in our company, that users can log onto, Every so often one of the servers will change it's date/time so far ahead, users are unable to log on ...
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3answers
277 views

Managing multi-timezone servers

What would be an ideal time and timezone setup for multi-country servers? Especially considering one central IT team managing these servers. Currently we have each server using a local timezone. e.g. ...