Questions tagged [time]

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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date: cannot set date: Operation not permitted [duplicate]

I have received an interesting problem during I tried to set my Server time either with NTD or manually using date command. First of all I have tried to use NTD. I have succesfully installed the ...
Quentin McLoad's user avatar
1 vote
1 answer
4k views

Cannot change date/time on virtualized centos install without a reboot

I have a dedicated web server which is running centos with xen virtualization that has centos installed on the vm. I do not have access to the parent server, I can only manipulate the vm, of which I ...
Joseph's user avatar
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0 votes
1 answer
723 views

How to change the current time inside apache and mysql from shell in ubuntu?

I need to test my backend with different times without change the code.
fedemiliano's user avatar
0 votes
1 answer
732 views

Review of a crontab script to add timestamps to minutely runs; any suggestions?

I've got a crontab job set to run minutely as such: * * * * * /home/username/public_html/domain.tld/production/scripts/cron_runner.sh My goal is to add some timestamps to output from cron so I can ...
ylluminate's user avatar
  • 1,197
1 vote
1 answer
2k views

KVM guest clock sync with host

I'm running KVM w/ centos 6.x. My guest vm clocks are booting with a 1-2 second lag from their host. My clocksource for the host is ntp. My clocksource for the guest is "kvm-clock", but I need to ...
timeout's user avatar
  • 11
3 votes
1 answer
1k views

Linux date translation to different time zone

The Linux server is hosted in EST timezone. But I want to translate the output of date command to IST(Indian Standard time +5:30 hrs) format and use it in a shell script. Is there any option available ...
nitin's user avatar
  • 2,599
0 votes
1 answer
574 views

Set system time using SNMP?

Is it possible to set system time on Windows Server using SNMP? So you push out the time instead of using NTP
Raboo's user avatar
  • 113
1 vote
3 answers
38k views

How to set hwclock to UTC?

The times on my arch linux workstation got messed up, so I set the system time with date and then the hardware time with sudo hwclock --systohc --utc Now the hwclock gives: Do 04 Apr 2013 14:12:48 ...
steffen's user avatar
  • 157
0 votes
1 answer
340 views

CentOS 6 recompile PHP and Freetds

I got something wrong with the default freetds (v 0.9.2) in my CentOS 6, reading the datetime from sql server is messed up in using mssql (dblib) extension, and it's said recompile php with current ...
tommy-1402's user avatar
6 votes
2 answers
37k views

Is it viable to use w32tm /stripchart to judge time variance of two Windows hosts from each other? A better way to discover two host's time variance?

Is it viable to use w32tm.exe's option stripchart to judge the time variance of two hosts (within a very small margin of error)? Note that w32tm.exe's stripchart function is separate than the ...
brandeded's user avatar
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0 votes
2 answers
2k views

Why my server request takes 28 Second to get response?

I have a Wordpress website on a Godaddy server having at http://kerala.letmeshare.org. When I request to get this website this takes almost 28 sec to get reply. Because of this I made a complete ...
Abin Manathoor Devasia's user avatar
4 votes
2 answers
2k views

Ntpd excessively inaccurate

I have ntpd set up (Meinberg ntp-4.2.6p5@london version for Windows on a Windows 7 client) with a bunch of nearby servers selected for low ping times (usually 10-20ms ping). However it seems my clock ...
Alex I's user avatar
  • 207
2 votes
1 answer
4k views

Real-time clock is wrong (from hours to years), one-time non-monotonic change at boot needed. Can Chrony solve this?

I can't guarantee a sane real-time clock on some machines (the time might be wrong by hours, months or even years). Since I also have intermittent networking, I set up Chrony in the hopes it could fix ...
darque's user avatar
  • 123
3 votes
2 answers
26k views

Setup of NTP on Hyper-V servers

I am having problems with NTP setup on our Hyper-V host and clients. I am not using Domain Controller (almost all advise is given for DC's which I am not using). On all servers I have used the ...
galmok's user avatar
  • 221
1 vote
1 answer
1k views

Linode Fedora shows an incorrect time

My fedora 17 linode VPS shows an incorrect time. The current real time in Dublin is 15:13 but my linode shows the time below which is out by 3 hours and 45 minutes: cg@lin:~$ ls -l /etc/localtime ...
conorgriffin's user avatar
2 votes
2 answers
2k views

disk bytes/s read and write

I'm trying to figure out how to count read and written bytes per second. At the moment what I'm doing is I read the data from /proc/diskstats which looks like this: 202 0 xvda 80702313 1132334 ...
milosgajdos's user avatar
  • 1,878
3 votes
1 answer
6k views

Setting Shoretel phone time correctly with dhcpd

Our Shoretel 230 phones are not picking up time service correctly and thus, the time on the display is wrong. When I go to the diagnostics of the phone, they are using a wrong time server (old). Here ...
bsigrist's user avatar
  • 235
4 votes
2 answers
986 views

How do I make all Xen guests use their host clock value?

I've set up Xen server under Linux with several guests running, and all was well. After some time I've noticed the clock on the server drifted away, so I installed 'ntpd', and the clock was back to ...
dragonroot's user avatar
6 votes
1 answer
3k views

Use shell built-in time while checking exit status of a function and suppressing output

I am attempting to do the following in a bash script and am wondering if it is possible: Time the output of a command (in this case, mysql) using time Suppress the stdout output of the command ...
futureal's user avatar
  • 397
-4 votes
1 answer
361 views

linux + change/edit file without effecting on file date [closed]

I want to edit some file in my linux for example ls -ltr /etc/some_file -rw-r--r-- 1 root root 188 Jul 1 2010 sysstat . echo "Server101_IP=187.0.98.4" >> /etc/some_file . I expect ...
yael's user avatar
  • 2,473
-1 votes
1 answer
513 views

I need a script to lockdown the system time to users via gpedit.msc [closed]

I need to lockdown the system time on a number of PCs via gpedit.msc and then removing administrators from the group and then adding 'administrator' and 'polling'. Can I do this via a script? ...
Chester's user avatar
0 votes
2 answers
215 views

How to do safely test Biztalk app by manipulating the Windows OS system time w/o breaking the Active Directory?

i have a biztalk - window service tied middleware application which talks to other system. recently we had a request to test for scenarios which relates to the date. as we have a lot of places in ...
melaos's user avatar
  • 109
1 vote
3 answers
2k views

Sync clock on Windows XP machine to external (non-domain, non-workgroup) Windows Server 2008 R2 machine

I have two machines and I'd like their clocks to be in sync for various reasons. Machine 1 is an XP machine located in the office. Machine 2 is a VPS hosted by a third party running Windows Server ...
Eric's user avatar
  • 135
2 votes
1 answer
2k views

Time issues on the Network -- How to find the Root Cause

A number of application servers started erroring out in my domain. Troubleshooting led me to a missconfiguration of NTP. I fixed the issue, but I don't know how the issue arose in the first place. ...
Jeff's user avatar
  • 701
3 votes
3 answers
1k views

Adjusting Windows time drift without internet on Windows Server 2003

I have Windows Server 2003 on a local LAN that has no internet connection, and need somewhat accurate timing. Unfortunately currently Windows loses about 1-2 minutes every week, which is why I have ...
Cookie's user avatar
  • 191
0 votes
1 answer
226 views

I changed time zone on DB & Web Server. Now SMTP sending is delayed

Both web & DB servers are running Windows Server 2008 R2. They are instances in the same datacenter at Amazon EC2. I changed both servers from central to eastern time zone using the windows GUI. ...
Brian Webster's user avatar
8 votes
1 answer
2k views

Changing time or offsetting it in OpenVZ contained server

I am trying to run a VPS, a Debian box contained in an OpenVZ container. Obviously, I cannot use time --set or any such command, as the time must be set via the parent node. The owner of the parent ...
Milad Naseri's user avatar
2 votes
1 answer
594 views

Users changing date/time from BIOS

We have around 350 Windows XP PC and a Windows 2008 R2 Server. The problem is that some users are changing the date/time from BIOS and the next user who would try to log-in on that PC would get the ...
user avatar
5 votes
3 answers
2k views

Dell T710 time issue, clock loses time every day

I have a Dell T710 here at work that for some reason will not keep proper time. Its a dual quadcore with 32GB ram and runs Windows 2008 R2. Instead of Having multiple servers we run a few virtual ...
Mister Tea's user avatar
22 votes
2 answers
20k views

What is the clock frequency inside 10Gb and 100Gb Ethernet cards?

As I understand, a 10Gb Ethernet card is capable of putting 10Gb every second on (say) a fibre optics cable. Now naively, for this to happen in hardware, one will need a 10GHz clock running the ...
Randomblue's user avatar
  • 1,175
6 votes
3 answers
1k views

how to cause linux system datetime to run faster than real world datetime?

Background I want to observe a running Linux system over several days for testing verification. It's a gentoo build and with custom software on top. The custom software requires various services and ...
JamesThomasMoon's user avatar
1 vote
1 answer
861 views

Disabling Host-to-Guest time sync in EC2 windows

In an EC2 instance (Xen Virtualized) is it possible to disable time sync on a Guest VM by Host VM. I found that it can be done on Linux instance by modifying xen.independent_wallclock=1 Is there any ...
Prakash's user avatar
  • 203
1 vote
1 answer
143 views

Is it safe to change the time on hosting VM server?

So, I noticed there's about a 10 minute drift on my VM hosting server from what time it's supposed to be. In traditional environments, I would just restart the system (and change the BIOS time if ...
Chad Harrison's user avatar
11 votes
6 answers
2k views

Replacing sick NTP server source and re-synching (with internal time currently 2 minutes late)

One of the external NTP servers (the primary one--currently) we're using as source seems to not be responding to NTP calls. Unfortunately, on our core router (Cisco 6509), the NTP functionality hasn'...
l0c0b0x's user avatar
  • 12k
1 vote
1 answer
6k views

Domain Controller/Active Directory Time is 5 minutes slow

Our Domain Controller/Active directory Windows 2008 server is running 5 mins slow, so all the client PCs are also showing the slower time. Is it safe to change the time on the server? And while the ...
ssin's user avatar
  • 53
2 votes
1 answer
333 views

How to correct time on Windows PDC server without affecting logons

I know how to set an authoritative time server in Server 2008 R2. That's not what this question is. I want to know how I can change the time on a network where the PDC (and therefore everything) is a ...
Kieran Walsh's user avatar
2 votes
1 answer
1k views

2 servers, times always go out of sync

I have 2 servers set with the same timezone and I set them with the same time and I have them both updating their server time from the same internet time source. But each week they seem to fall away ...
Slee's user avatar
  • 141
1 vote
1 answer
4k views

Ubuntu 12.04 - Change rsyslog to use EDT|EST instead of UTC

Right now, I have rsyslog handling a log for a PHP app. Well...I have PHP using rsyslog to do the logging. Currently, it logs time in UTC. I want it to log in EST/EDT as appropriate. How do I make ...
Chad's user avatar
  • 119
2 votes
1 answer
462 views

Busy Debian server (Xen guest) seems to go to sleep (energy saving mode)

I have a Debian 6 Xen guest that seems to go to sleep from time to time. Randomly, it just stops to answer to any network requests (HTTP, ssh, ping) and only resumes activity when we log on the ...
Lætitia's user avatar
  • 2,095
0 votes
1 answer
922 views

Webmin time module and CentOS [closed]

When I try to install webmin time module on my VPS running CentOS I get this error message: Failed to install standard module : Module time does not support this operating system (CentOS Linux 5) ...
silvercover's user avatar
2 votes
1 answer
5k views

NTP: ntpdate to sync time between the PCs on a private network

I have two systems. One acts as Primary/Active and has Internet connection and gets time from NTP server. The second system is Secondary/Passive and has no connection to the external world. Primary ...
Vishu's user avatar
  • 23
3 votes
2 answers
686 views

Unix Command to timestamp the output of a file, but with the relative-to-when-it-started time?

There are numerous programmes (e.g. ts in moreutils), and various bash one-liners to prepend the output of a command/pipe with the timestamp of when that line was 'printed'. However is there a ...
Amandasaurus's user avatar
  • 32.3k
9 votes
1 answer
7k views

Single NTP server on isolate network

I have two linux machines (A and B) on an isolated network. They must be time-synchronized. Machine A is powered intermittently and must serve the time, as it is connected to an authoritative time ...
San Jacinto's user avatar
3 votes
2 answers
577 views

Windows Time Service OS Compatibility

Some of our servers have Domain Time II on them but we are having to make the possible decision to buy over 100+ licenses for Domain Time II or enable the windows time service. The installation of ...
Patrick's user avatar
  • 401
18 votes
7 answers
49k views

How to make Jenkins CI use Local time instead of UTC on debian squeeze

I have a Jenkins-ci installation on a debian squeeze. Current default time zone: 'America/Toronto' Local time is now: Mon Jul 9 16:00:57 EDT 2012. Universal Time is now: Mon Jul 9 20:00:57 ...
drgn's user avatar
  • 183
15 votes
4 answers
6k views

Easy way to get the International Atomic Time on linux?

My system uses UTC for the system clock, which I don't particularly feel like changing. Is there an easy way to get the current TAI time? (preferably a command line tool or flag)
JanKanis's user avatar
  • 553
4 votes
1 answer
388 views

Apache HTTPD process cumulative cpu time

How can I aggregate all Apache HTTPD processes' CPU time usage to be able to compare them with other running processes' (MySQL, Java, ...)? Or how much CPU time does HTTPD needs compared to MySQL for ...
user77376's user avatar
  • 193
1 vote
3 answers
5k views

Sync Linux to Windows 2003/2008 Natively

Without using any external packages for Windows, can Linux synchronise it's clock to a Windows 03/08 Server natively? I've tried it using various NTP packages for Windows but would like to use just ...
Federer's user avatar
  • 211
3 votes
1 answer
5k views

Time Synch Architecture in Windows Domain Environment

I just read the following article -- "In a domain, time synchronization takes place when Windows Time Service turns on during system startup and periodically while the system is running." ( http://...
Param's user avatar
  • 1,367
0 votes
1 answer
2k views

System time problems on Debian (wait for clock tick timed out)

I just installed a new server and changed the time zone by using the command: dpkg-reconfigure tzdata the system clock is correct now but /sbin/hwclock --systohc doesn't work: select() to /dev/rtc ...
user1406271's user avatar
  • 1,091

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