Displaying 20 results from an estimated 10000 matches similar to: "NTP server"
2016 Jan 27
4
NTP Service Running on Local Host does not Sync System Time
Hi List
I have ntp running as a service on a PC, with the expectation that it
would keep time in synch to my ntp server.
However, while I can manually update the time using "ntpdate -u ...",
I find that if I manually force the wrong time, the ntpd service does
not automatically re-synch the system time with the ntp server:
- Current time:
[admin at lol ~]# date
Wed Jan 27 10:54:21
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
2017 Aug 22
1
NTP traffic blocked
I have multiple VM's on the same KVM host. One of the VM's is running NTP.
All VM's can reach eachother, no firewall in between. But the problem is,
the VM's cannot communicate over port 123/udp to the NTP VM.
Network: 172.24.100.0/22
KVM: 172.24.101.50
VM ntp: 172.24.102.10
VM foo: 172.24.102.20
1. On the NTP server, listen for any incoming packets from VM foo
2017 Feb 05
2
Chrony vd NTP
On 05/02/17 16:15, Richard wrote:
>
>> Date: Sunday, February 05, 2017 10:26:05 -0500
>> From: Robert Moskowitz <rgm at htt-consult.com>
>>
>> I have read:
>> http://thegeekdiary.com/centos-rhel-7-chrony-vs-ntp-differences-bet
>> ween-ntpd-and-chronyd/
>>
>> My server is up all the time and will serve time to internal
>> systems (via
2017 Feb 05
2
Chrony vd NTP
I have read:
http://thegeekdiary.com/centos-rhel-7-chrony-vs-ntp-differences-between-ntpd-and-chronyd/
My server is up all the time and will serve time to internal systems
(via DHCP options).
Caveat is that my server is an armv7 (Cubieboard2) which does not have
an RTC (no battery). So whenever the system boots, the time is ZERO
(Dec 31, 1969 or some such).
Chrony fixes this really fast;
2007 Nov 20
2
ntp queries not being answered
Hello All,
My name is Gaurav, and I am tasked with configuring a linux box with
NTP.
I am having a problem that I hope you can help me with.
We have installed CentOS V5 on 1 processor down in the lab. The rest of
the processors on the network are AIX boxes versions 3.2.5 and 5.2. I
worked through the entire initial NTP configuration; setup the
/etc/ntp.conf file to point to the server, etc.
2017 Feb 05
1
Chrony vd NTP
> Date: Sunday, February 05, 2017 10:26:05 -0500
> From: Robert Moskowitz <rgm at htt-consult.com>
>
> I have read:
> http://thegeekdiary.com/centos-rhel-7-chrony-vs-ntp-differences-bet
> ween-ntpd-and-chronyd/
>
> My server is up all the time and will serve time to internal
> systems (via DHCP options).
>
> Caveat is that my server is an armv7
2006 Apr 07
3
ntp server
I thought I'd play with making my system an ntp server.
I did the "service ntpd start" it started OK.
on my laptop I did "ntpdate IP" and it says no server for sync found.
My firewall has open ntp:udp
What did I miss?
Thanks,
Jerry
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
2010 Nov 11
1
Fwd: ntp help
Hello
I am trying to sync via NTP locally (since I have no Internet access).
None of the NTP stuff I read on the net seems to work right. I mean it works fine setting up a client going to something like 0.pool.ntp.org but when I want to make my LInux box a server, and I do an ntpdate to it from another machine,
it says no suitable server found. I have tried every possible combination of
2009 Jun 06
13
dovecot and ntp: Fatal: Time just moved backwards
Hallo,
I am running dovecot on a PC (a workstation) to have a mail client
independent storage for my mails. Now I would like to have the system
clock set correctly by using ntpd or ntpdate (using debian/sid).
The problem is, that the PC is not online at boot time, but is set
online on demand manually using "pon" to start the pppd later. So ntpd
cannot sync the time on boot time
2008 May 20
2
Strange NTP problem
I have 30 identical Lenovo desktop systems running CentOS 5.1. On
one of those systems the clock is running slow (5+ minutes from
yesterday to this morning and another minute since this morning)
despite the fact that NTP is running on all of them and they all have
the exact same /etc/ntp.conf file (I compared the MD5 sums of that
file on all the systems). Here is the output of
2012 May 28
4
NTP and virtual guests
We encountered a problem with respect to KVM virtual host restore and
NTP. Specifically, our VM test host was shutdown by an extended power
outage and when power returned all of the restored guests were
immediately shutdown by ntp because the time differential between the
restored systems and that of the ntpd sync servers exceeded the panic
threshold.
This is not an acceptable situation so in the
2012 Jun 04
2
system date using ntp client is drifting
Hi,
I have a set of servers whose system time is drifting. I am running ntp
client on CentOS 5.8. My config is here -> http://fpaste.org/s55U/
Anything i am missing?
Regards,
Kaushal
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 ~]
2018 Nov 22
2
NTP strangeness...
In our network we found some client with clock differences.
Some machine have effectively some troubles, eg have NO 'Windows Time'
service defined, probably some glitches happened when moving from our
old NT-like domain.
Anyway, catching for that, we have found some other strangeness.
Windows time service run:
C:\Users\gaio>sc query w32time
NOME_SERVIZIO: w32time
TIPO
2014 Oct 10
1
Centos 7 and ntp
I've curious about where and how Centos 7 gets its ntp configuration from.
When I installed the operating system, I went through this page and told it to use "network time", as shown:
http://media.if-not-true-then-false.com/2014/07/06-centos-7-date-and-time-748x560.png
I just discovered that i don't actually have ntp installed on this computer, though the rpm does exist when I
2005 May 13
1
RE: NTP time issues DomU''s
I think it''s perfect the way it is.
Run NTP in dom0, all the domU''s then have synchronized time.
I can still set timezones on all of these boxes independantly.
Timezone has nothing to do with NTP synchronization.
Tim:>
> yeah, i''m already doing that, I was just saying, it *seemed*
> like they were getting their time from domain0, and weren''t
>
2009 Nov 22
4
system time automatically fowards in time and then comes back to normal
Hi friends,
I am running Nagios 2.7-1 on Centos 5.0 32-bit hosted on Vmware ESX
4.0. The issue I am seeing on the server is sometimes nagios is
showing the below messages in /var/log/messages and as the system time
gets changed some false alarms gets generated. I searched it on the
google but I am not able to find the correct solution. I even posted
on the nagios forum and they asked me to see
2006 May 24
1
NTP
Hi folks,
Have there been any changes to the way ntpd behaves in the past few
updates? Reason I ask, whenever I run the ntpq or ntpdc, I immediately
get a response of Name or service not known. I know things used to work
sometime back, and never saw this kind of stuff. Nothing has changed in
the /etc/ntp.conf file, nor has anything changed in the
/etc/ntp/ntpservers files.
T