similar to: May 05 07:20:21 imap: Warning: Time jumped forwards 16 seconds

i've dovecot --version 1.2.5 hg log | grep changeset | head -n 1 changeset: 9407:a3e16df805e3 in my logs, i'm seeing ... Oct 05 16:51:40 dovecot: Error: Time just moved backwards by 1 seconds. I'll sleep now until we're back in present. http://wiki.dovecot.org/TimeMovedBackwards Oct 05 17:07:22 dovecot: Error: Time just moved backwards by 1 seconds. I'll sleep now

Hello, I made an interesting observation related to the "Clocksource tsc unstable (delta = -2999660320319 ns)" problem. In the log of ntpd I found: Oct 5 03:46:35 greenville-dom0 ntpd[4020]: kernel time sync status change 6001 Oct 5 04:03:41 greenville-dom0 ntpd[4020]: kernel time sync status change 2001 Oct 5 05:29:03 greenville-dom0 ntpd[4020]: kernel time sync status change

I’m currently trying to install a new (primary) AD DC in a Linux container. It seems to me that being in a container, the DC is easier to maintain and backup than on bare metal, and I prefer a container over a VM for performance reasons. If the container setup will prove to be too much of hassle, I’ll switch to a VM, though. The first issue I’m facing is time synchronization. An container cannot

I have a need to run a centos server CUT-off from any connected network. So the NTP server that is running on this very small network cannot connect to any other site to do what NTP does. however, I have devices on this small network that I wish to use the centos server as the time source and run ntpd. However - it seems like ntpd server does not like to run this way. There is a LONG delay

Hi, I configured my NTP server in samba 4 according to the article " https://wiki.samba.org/index.php/Time_Synchronisation" however I verified that the NTP server does not respond to requests from Windows NTPv3 clients, it only responds to NTPv4. Following my ntp.conf: # /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help driftfile /var/lib/ntp/ntp.drift # Enable this if

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

Scenario: server PC abruptly switched off due to power cable problems (an UPS cannot solve this issue), so during shutdown Linux was not able to resinchronize the system clock. After a few hours the server come back on, Linux booted and the services (ntpd, dovecot and many others) started But the system clock was 45 minutes ahead, so: Jan 19 11:13:39 gw ntpd[2112]: synchronized to LOCAL(0),

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

Hello, I recently compiled Samba 4.0.6 (as an AD DC) and am running it on Ubuntu 12.04. I followed the instructions on the Samba wiki (https://wiki.samba.org/index.php/Configure_NTP) for how to configure ntp, however the domain clients are rejecting the DCs as being acceptable time sources. Below is my ntp.conf: server 127.127.1.0 fudge 127.127.1.0 stratum 10 server 0.pool.ntp.org iburst

Greets! Ok. I'm looking at a client that needs to keep their server time close as reasonably possible (within a minute) of the actual time of day. I've installed the RPM for NTP and I'm looking for tips on what the simplest setup should be, ie: What server(s) should I be using for sync? Should I just run it from a cron every 20 minutes or so? thx. Mike -------------- next part

Stan, Thanks for the reply. In our case we have actually already done most of the work you suggested to no avail. We had rebuilt two new ntp servers that sync against two stratum 1 sources, and all our nfs clients, regardless of using dovecot, sync to those two machines. You bring up the difference between bare metal and hypervisor, and we are running these machines on vmware 4.0. All the

Maybe there's an ntp expert out there who can help me with this. I have an NTP server serving our local network. It is set up to use pool.ntp.org servers for it's upstream sync. ntpq -p reveals that the server is stuck on stratum 16, which I understand means "not synced". The clients are unable to sync with my local server because of this. Here's the output of ntpq -p

Hello everyone, If anyone is interested, I have created a HOWTO on running a Motorola GPS receiver connected to a CentOS 7 box via serial port (com1), with 1PPS over DCD. The trick here is that CentOS 7 uses systemd and setup was a bit different. Anyway, everything works. The result is a highly accurate NTP server, Stratum 1. Here is the documentation.

Hello everyone, I have problem with time delaying on my CentOS powered server. I have tried to set time in BIOS and in OS (with saving time to BIOS), but time still delaying, so after month is about five minutes delayed. In past I was using this box with Windows and there wasn?t this time problem, but I cant warrant, that there are no hardware issues. So I was decided, that easiest way to fix

Alexander, First off, CentOS7 came with cronyd. Which was very annoying because when I tried to remove it, it had 2 prereqs: anaconda initial-setup Now, I don't know why the setup program kept these 2 around. I think CentOS7 needs a bit growing up. Anyway, I disabled chrony: systemctl disable time-sync systemctl stop time-sync Then I installed ntp. However, when I started it it seems that

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

Hi Louis, In general, this sounds like the solution I was looking for. But I’m still a bit unclear about the practical implementation. So, the DC can be setup without ntpd as it will work based on the system clock which, in turn, is actually being updated by the container host using NTP. Which means we’ve got the DC itself covered. But if ntpd is not installed, then how can the DC serve time

On Tue, 2020-08-04 at 13:08 -0500, Michael Jones via samba wrote: > On Tue, Aug 4, 2020 at 1:05 PM Rowland penny via samba < > samba at lists.samba.org> wrote: > > > On 04/08/2020 18:59, Michael Jones via samba wrote: > > > I use systemd-timesyncd to sync time with the rest of the > > > internet. > > > > This is not supported by Samba > >

I'm running a Samba AD DC v4.9.9 with Windows 10 clients connected to it and just noticed that the clients are not synchronizing time with the server. I'm not sure why not. My setup is a bit special in that the DC is running inside a (privileged) linux container. For that reason, it's not possible or necessary for the container to correct the system clock, this is done on the

Hi All, I am using vms on gogrid and rackspace completely. I am decent but still learning puppet. The biggest problem with vms, especially where I cant control the Host is ntp time and date sync to be good. Here is my config to sync ntp. Please dont tailor my code just help me fix the problem. This code works 99% of the servers its on except for 2 centos 5 machines. class base { class {