Displaying 20 results from an estimated 8000 matches similar to: "DomU clock out of sync"
2010 Nov 12
7
hwclock problem
Hi.
I run peridocally (from cron) on all of my machines
30 * * * * root /sbin/hwclock --systohc
All of those machines in question take their time via NTP
from the same local server, and that server gets its time
from a ntp pool.
Now I had to reboot a couple of them two days ago and to my surprise
all had problems with the time upon booting.
Here are the important files:
[root at XXXXXX ~]
2007 Nov 09
5
System on time
Hi,
To get my system on time, I usually issue these two commands:
# ntpdate de.pool.ntp.org
# hwclock -w
And when I want this to be done on startup, I put the two lines in
rc.local.
I wonder if this is an orthodox way to do things. Or is there something
more appropriate?
Niki Kovacs
2010 Sep 29
1
Monitoring Network traffic of DomU
Dear All.
I have set up a Xen testbed on a computer.(Dom0 use debian lenny)
I would like to know the possible ways to monitor the network traffic of
DomU''s from Dom0.
# command ''xentop'' display
NAME STATE CPU(sec) CPU(%) MEM(k) MEM(%) MAXMEM(k) MAXMEM(%) VCPUS NETS
NETTX(k) NETRX(k) VBDS VBD_OO VBD_RD VBD_WR SSID
debianlenny --b--- 14 0.0 270204 25.8 278528 26.6 1 0 0
2008 May 21
3
VMware and Time moved backwards
Hi,
I followed the discussions regarding the "time moved backward" problem
and the use of ntp in such cases. At our department we are running two
dovecot servers within an vmware server environment, and unfortunately
the timedrift (with ntpd active) exceeds sometimes up to 30 minutes
virtual drift within 10 minutes realtime (mostly into future). This is
due to some overcorrections
2006 Oct 11
3
NTP and hardware clock
Hi,
I had the following problem today. Because of a misconfigured
network switch one system suddenly didn't have any network.
After a reboot (with the network still unavailable) NTPD refused to start.
Most likely because the initial ntpdate failed to work. I find this
troubling, because when the network was restored, NTPD could have resumed
working (like I'd expect from a true
2011 Mar 04
3
Updating hardware clock from cron
Is there a package to do this?
Normally the hardware clock is set during shutdown if one is running ntpd.
But if a long-running server shuts down unexpectedly, this isn't done, and
the hardware clock might be off by a lot when it comes back up. So setting
it periodically from a cron job could be useful.
What do others do? Adding a one liner to /etc/cron.daily that invokes
2006 Feb 26
17
domU clock over 23s off
Hey,
I have rather new installation of xen, dom0 is running ntpd and is
perfectly in time. All domU''s are ~23s in future. Running ntpd on
the domU''s seem to have no effect, /proc/sys/xen/independent_wallclock
appears to have no effect. I''m running xen-unstable and 2.6.16-rc4
in AMD64 box.
Any tip would be appricated.
Thanks,
--
++ytti
2009 Mar 13
4
date differs permanent some 3450 sec.
Hi,
the date jumps within 30 seconds to a wrong value. ntp service is
stopped at the beginning.
Whereas hwclock seems more precise.
[root at kerio ~]# service ntpd stop
Shutting down ntpd: [ OK ]
[root at kerio ~]# ntpdate 0.centos.pool.ntp.org
13 Mar 07:04:48 ntpdate[23003]: step time server 131.234.137.24 offset
-3450.678273 sec
[root at
2009 May 07
1
timezone "Europe/London" ntpdate
Hi
CentOS 5.3 with latest updates.
I have a problem with the time zone on dedicated server.
I had to setup the timezone using system-config-date to
"Europe/London" and "System clock uses UTC" == checked
# date; date -u; hwclock --show; hwclock --show --utc; zdump /etc/localtime
Thu May 7 21:29:47 GMT 2009
Thu May 7 21:29:47 UTC 2009
Thu 07 May 2009 09:29:48 PM GMT
2013 Dec 02
3
CentOS Hardware clock time setting.
Hi, I would like to sync my CentOS 6.3 hardware clock time to my NTP
server's time. Can I do that without reboot the hosts?
If yes, it would be great if anyone of you can provide me steps to do that.
I am newbie in CentOS.
Thanks,
Anand Singh
2008 May 15
3
ntpd date sync before service startup
Hello,
in system-config-date i have checkbox synchronize date before service
startup.
Which config switch,file does it affect? I want to turn it on on my CentOS
machine without xauth , just editing config files , i was hoping it could be
in /etc/sysconfig/ntpd but no.
Thanks in advance!
D.
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2007 Sep 03
5
Dom0 <> DomU clock sync
Hello !
Just a quick question about time synchronization between xen dom0 and
domUs...
We''re running Xen 3.1 64-bit, with 32 and 64 bits linux guests.
It''s up since 89 days and the domU''s time is around 5 minutes behind the
dom0,
which is updated via ntpdate...
Any idea why it doesn''t sync the guests even that
/proc/sys/xen/independent_wallclock is 0 ?
2006 Oct 12
5
DO NOT REPLY [Bug 4168] New: Random file has vanished when syncing clock with ntpdate/hwclock ?
https://bugzilla.samba.org/show_bug.cgi?id=4168
Summary: Random file has vanished when syncing clock with
ntpdate/hwclock ?
Product: rsync
Version: 2.6.4
Platform: x86
OS/Version: Linux
Status: NEW
Severity: major
Priority: P3
Component: core
AssignedTo: wayned@samba.org
2014 Jan 15
3
Advice in Time Sync
Dear all,
I would need some advice as I am a beginner in CentOS.
The question is as follows:
How to set up timing if NTP was block by ISP?
I have try many way such as link the timezone , getting from the hardware
clock.However , it is not the solution.
Please advice.
--
Regards,
Ku Wei Xiong
0166365831
2001 Mar 23
1
Timeserver sending wrong time to Windows Clients
Help Andrew! and whoever else..
I have a Linux Mandrake 7.2 box with Samba 2.07 acting as a timeserver
for our local lan. We are in the CST timezone. All windows boxes sync
thier time from the Linux box via: net time \\Nemesis /set /yes. I would
like to have xntp keep the clock on the server updated.
Problem:
ntpdate and xntp work great at setting the Linux box hardware clock to
GMT.
The
2010 Sep 26
5
Need to pick your brain for recommendation on using 2.5" or 3.5" HDDs for Asterisk server...
Hi Everyone,
I am stack between two identical systems (2U Twin2, 4 nodes, SuperMicro)
servers that have the same exact specs except for HDDs. These nodes will all
either have Asterisk installed with CentOS or will have Asterisk install in
virtual environment.
Option 1: *12* x 3.5" HDD (3 HDDs per node)
Option 2: *24* x 2.5" HDD (6 HDDs per node)
**both options come to the same price.
2011 Apr 26
6
vif-common.sh and iptables
Hey everyone,
I have a question about vif-common.sh. I run multiple bridges attached
on dummy interfaces, which allow me to put guests in seperate subnets
(routed through the dom0). As you might expect I already have quite
extensive iptables scripts to accomidate this kind of routing.
I was just hoping someone on this list can confirm, that I understand
what the iptables lines in vif-common.sh
2006 Nov 24
19
Time/clock issues with Xen 3.0.3?
The time appears to be perfect inside dom0, however all the domU''s
tend to have a slightly faster date which gets further out of sync
every day.
I''m currently using Xen 3.0.3 with Gentoo Linux, under 3.0.2 I had no
problems with domU clocks. Are there any known issues which could
cause this? I''d strongly prefer not to run ntpd in every domU,
having all domU clocks in
2015 Feb 12
4
Why the command 'service ntpd stop' cause the time reversed?
A shell script is deployed to synchronize time, the script is invoked hourly by crontab, and its content is as follows:
#!/bin/bash
service ntpd stop
ntpdate 192.168.0.191 #it's a valid ntpd server in LAN
service ntpd start
chkconfig ntpd on
Inspected the Linux log(Centos6.4 /var/log/messages), found the following fragment:
Jan 7 14:00:01 host1 ntpd[32101]: ntpd exiting on signal 15
Jan 7
2011 May 08
6
ntp revisited (so what to do ?)
OK,
So what you people say is :
1. Run "ntpdate" during startup only once
2. After that, keep time with ntpd
Right ?
Regards,
spyros
----
"I merely function as a channel that filters
music through the chaos of noise"
- Vangelis