Quick brainstorm requiredwhat's the most common issues you'd expect in a
Windows/AD environment if some servers have incorrect time settings? Obviously
AD replication and logging inconsistencies spring to mind...just looking for a
few to flesh out a blog post that deals with preventing
On Mon, Jan 14, 2013 at 12:49 PM, kz2...@googlemail.com wrote:
Quick brainstorm requiredwhat's the most common issues you'd expect in a
Windows/AD environment if some servers have incorrect time settings?
Obviously AD replication and logging inconsistencies spring to mind...just
.
-Original Message-
From: Kurt Buff [mailto:kurt.b...@gmail.com]
Sent: Monday, January 14, 2013 4:13 PM
To: NT System Admin Issues
Subject: Re: Time sync issues
On Mon, Jan 14, 2013 at 12:49 PM, kz2...@googlemail.com wrote:
Quick brainstorm requiredwhat's the most common issues you'd
]
Subject: RE: Time sync issues
Kerberos authentication fails if time drifts too far off and you lose access
to
network resources, such as shares. The tolerance for time drift varies with
server editions. I think Server 2003 had a 5 minute drift tolerance and I
think
Server 2008 has a 10
]
Sent: Monday, January 14, 2013 6:46 PM
To: NT System Admin Issues
Subject: RE: Time sync issues
That is not a 100% accurate statement.
http://blogs.technet.com/b/askds/archive/2012/08/24/friday-i-mean-saturday-mail-sack-very-wordy-edition.aspx
•The semi-myth of Kerberos time skew
Thanks
as well,
without having to over provision to start with.
Cheers
Ken
From: Ken Cornetet [mailto:ken.corne...@kimball.com]
Sent: Wednesday, 9 January 2013 1:29 AM
To: NT System Admin Issues
Subject: RE: Time sync
We use SCOM to monitor everything, and we have some homegrown stuff on top of
that. So
. Management can worry about the
explosion of disk costs.
From: Ken Schaefer [mailto:k...@adopenstatic.com]
Sent: Monday, January 07, 2013 11:21 PM
To: NT System Admin Issues
Subject: RE: Time sync
Seriously?
Are you an ITIL shop? Do you not have capacity management plans and
systems/tools in place
[mailto:ken.corne...@kimball.com]
Sent: Wednesday, 9 January 2013 1:29 AM
To: NT System Admin Issues
Subject: RE: Time sync
We use SCOM to monitor everything, and we have some homegrown stuff on top of
that. So, we do monitor.
However, what we saw in the early days of virtualization
Lol, how many times do you need 64 vCPUs or 4TB of guest Ram versus needing to
extend a disk?
From: Ken Schaefer [mailto:k...@adopenstatic.com]
Sent: Friday, January 04, 2013 8:50 PM
To: NT System Admin Issues
Subject: RE: Time sync
Can ESX support 64 vCPUs or 4TB RAM per guest yet? Or 64
On Mon, Jan 7, 2013 at 8:31 AM, Ken Cornetet ken.corne...@kimball.com wrote:
Lol, how many times do you need 64 vCPUs or 4TB of guest Ram versus needing
to extend a disk?
I run VMware ESXi 5.0, and I know I have had to extend a disk any
number of times. And Win2008 makes extending the boot disk
HyperV
users aren't howling about this.
-Original Message-
From: Michael Leone [mailto:oozerd...@gmail.com]
Sent: Monday, January 07, 2013 9:43 AM
To: NT System Admin Issues
Subject: Re: Time sync
On Mon, Jan 7, 2013 at 8:31 AM, Ken Cornetet ken.corne...@kimball.com wrote:
Lol, how many
]
Sent: Monday, January 7, 2013 10:06 AM
To: NT System Admin Issues
Subject: RE: Time sync
We are running ESX 5. To conserve SAN storage, we provision virtuals with the
bare minimum needed disk space because it is so easy to extend disks later
(extend the VMDK in VMWare, extend in Windows, done
features like 4TB of guest RAM. And, I also wonder why HyperV
users aren't howling about this.
-Original Message-
From: Michael Leone [mailto:oozerd...@gmail.com]
Sent: Monday, January 07, 2013 9:43 AM
To: NT System Admin Issues
Subject: Re: Time sync
On Mon, Jan 7, 2013 at 8:31 AM, Ken
days, and I ran into
this problem a few times.
-Original Message-
From: Michael B. Smith [mailto:mich...@smithcons.com]
Sent: Monday, January 07, 2013 10:28 AM
To: NT System Admin Issues
Subject: RE: Time sync
Because the overhead associated with dynamic disks in Hyper-V v3
On Mon, Jan 7, 2013 at 10:33 AM, Andrew S. Baker asbz...@gmail.com wrote:
You do know you can thin provision in both VMWare and HyperV, right?
Thus, you can stipulate that a disk have a max size of 200GB, but if you're
only using 50GB, it will only be 50GB in size.
I never use think disks,
Admin Issues
Subject: RE: Time sync
Because the overhead associated with dynamic disks in Hyper-V v3 is in the
very low single digits. We don't spend any time on this process, thin
provisioning still works seamlessly, and we get on with our lives.
:)
-Original Message-
From: Ken
, even if you
script it up.
From: Andrew S. Baker [mailto:asbz...@gmail.com]
Sent: Monday, January 07, 2013 12:08 PM
To: NT System Admin Issues
Subject: Re: Time sync
Yes, over subscribing can be an issue if you don't manage your capacity
properly.
It hasn't proved to be an issue in any
[mailto:asbz...@gmail.com]
*Sent:* Monday, January 07, 2013 12:08 PM
*To:* NT System Admin Issues
*Subject:* Re: Time sync
** **
Yes, over subscribing can be an issue if you don't manage your capacity
properly.
** **
It hasn't proved to be an issue in any of the environments where I have
that VMWare doesn't have.
That statement is patently untrue. That was the point I was trying to make.
Cheers
Ken
From: Ken Cornetet [mailto:ken.corne...@kimball.com]
Sent: Tuesday, 8 January 2013 12:31 AM
To: NT System Admin Issues
Subject: RE: Time sync
Lol, how many times do you need 64 vCPUs
System Admin Issues
Subject: RE: Time sync
How do you manage your capacity properly? I'm not being facetious - I really
want to know since it looks like we are switching to HyperV.
Microsoft's recommendation is to create thin disks for more than you ever think
you need. Then, when creating the OS
an alternative to
W32Time. NIST has gathered a list of time sync software. QUESTION: has
anyone on the list used (and would recommend) anything on that list to fix
the “record created prior to the call” situation? (
http://www.nist.gov/pml/div688/grp40/softwarelist.cfm)
** **
Thank you
System Admin Issues
Subject: Re: Time sync
We run the product from Meinberg. It works very well except on HV guests.
On Fri, Jan 4, 2013 at 8:10 AM, Richard McClary
richard.mccl...@aspca.orgmailto:richard.mccl...@aspca.org wrote:
Greetings!
I'm sure I and many others have asked
time (pun intended) we had a time sync
issue.
From: Richard McClary [mailto:richard.mccl...@aspca.org]
Sent: Friday, January 04, 2013 9:11 AM
To: NT System Admin Issues
Subject: Time sync
Greetings!
I'm sure I and many others have asked this (but are still stumped). Ken S's
reply yesterday
The Guardian Life Insurance Company of America
www.guardianlife.com
From: Richard McClary richard.mccl...@aspca.org
To: NT System Admin Issues ntsysadmin@lyris.sunbelt-software.com
Date: 01/04/2013 09:11 AM
Subject:Time sync
Greetings!
I’m sure I and many others have
Admin Issues
Subject: RE: Time sync
We run the Meinberg NTP port as well. We will soon start migrating from VMWare
(where the Meinberg NTP port works great) to HyperV. Care to elaborate on what
you mean by except on HV guests?
From: Eric Wittersheim [mailto:eric.wittersh...@gmail.com]
Sent: Friday
referenced above essentially says to go find an alternative to
W32Time. NIST has gathered a list of time sync software. QUESTION: has
anyone on the list used (and would recommend) anything on that list to fix
the “record created prior to the call” situation?
(http://www.nist.gov/pml/div688
To: NT System Admin Issues
Subject: RE: Time sync
Slightly OT, Ken, but why are you moving away from VM? Cost or
something else that HyperV gives you that VM doesn't?
Paul Chinnery
Network Admin
Memorial Medical Center
231.845.2319
From: Ken Cornetet [mailto:ken.corne
-Original Message-
From: Steve Kradel [mailto:skra...@zetetic.net]
Sent: Friday, January 04, 2013 10:32 AM
To: NT System Admin Issues
Subject: Re: Time sync
How much time skew are we talking about here? While MSFT will only support
w32tm accuracy within 1-2 seconds, in practice I
...@zetetic.net]
Sent: Friday, January 04, 2013 8:32 AM
To: NT System Admin Issues
Subject: Re: Time sync
How much time skew are we talking about here? While MSFT will only support
w32tm accuracy within 1-2 seconds, in practice I have found it to be stable
within a tenth of a second or less, and would
Subject: RE: Time sync
I was thinking the same thing. Actually IMHO VM still does more than Hyper-V
does...
Z
Edward E. Ziots, CISSP, Security +, Network +
Security Engineer
Lifespan Organization
ezi...@lifespan.orgmailto:ezi...@lifespan.org
From: Chinnery, Paul [mailto:pa...@mmcwm.com]
Sent: Friday
the Meinberg NTP port works great) to HyperV. Care to
elaborate on what you mean by “except on HV guests”?
** **
*From:* Eric Wittersheim [mailto:eric.wittersh...@gmail.com]
*Sent:* Friday, January 04, 2013 9:24 AM
*To:* NT System Admin Issues
*Subject:* Re: Time sync
** **
We run
Hmm, could be your VM host has the wrong time, and is jamming that bad
time into its guests occasionally. Disable the host-guest time sync
and, provided w32tm is set up properly, you may find everything is
good.
Also it wouldn't hurt to make sure the host has a solid time
configuration
...@zetetic.net wrote:
Hmm, could be your VM host has the wrong time, and is jamming that bad
time into its guests occasionally. Disable the host-guest time sync
and, provided w32tm is set up properly, you may find everything is
good.
Also it wouldn't hurt to make sure the host has a solid time
skra...@zetetic.net wrote:
Hmm, could be your VM host has the wrong time, and is jamming that bad
time into its guests occasionally. Disable the host-guest time sync
and, provided w32tm is set up properly, you may find everything is
good.
Also it wouldn't hurt to make sure the host has
timesource offset more then 100msec, It generate an e-mail alert.
De : Steven Peck [mailto:sep...@gmail.com]
Envoyé : 4 janvier 2013 16:25
À : NT System Admin Issues
Objet : Re: Time sync
Oh, I should mention the PBX gets time from the routers as well, etc. We
. Hypervisors
are almost commoditised, and will be within the next version or two.
Cheers
Ken
From: Ken Cornetet [mailto:ken.corne...@kimball.com]
Sent: Saturday, 5 January 2013 6:26 AM
To: NT System Admin Issues
Subject: RE: Time sync
Cost.
HyperV give something that VMWare doesn't? I laughed so hard I
Hi folks. I've been asked to analyze the time sync setup for our domain at the
new job. The domain is on windows 2003 servers.
It's been a while since I've had to do this so I did some research -
http://support.microsoft.com/kb/816042 ,
http://www.windowsnetworking.com/articles_tutorials
[mailto:drkuhl...@yahoo.com]
Sent: Thursday, July 14, 2011 10:10 AM
To: NT System Admin Issues
Subject: Domain on Server 2003 Time Sync Question
Hi folks. I've been asked to analyze the time sync setup for our domain at the
new job. The domain is on windows 2003 servers.
It's been a while since I've had
it seems a bit harder
to map things out and troubleshoot.
Don
From: Michael B. Smith mich...@smithcons.com
To: NT System Admin Issues ntsysadmin@lyris.sunbelt-software.com
Sent: Thursday, July 14, 2011 9:15 AM
Subject: RE: Domain on Server 2003 Time Sync Question
Bah humbug.
http
Yet another good reason to upgrade. :)
Regards,
Michael B. Smith
Consultant and Exchange MVP
http://TheEssentialExchange.com
From: Don Kuhlman [mailto:drkuhl...@yahoo.com]
Sent: Thursday, July 14, 2011 10:38 AM
To: NT System Admin Issues
Subject: Re: Domain on Server 2003 Time Sync Question
I have my virtual copy of my AD structure just about all ready to go.
The DCs are on an isolated vSwitch on VMware ESX 4.1. The last step is
to set up time sync, I think.
According to
http://www.sole.dk/post/how-to-configure-your-virtual-domain-controllers-and-avoid-simple-mistakes-with-resulting
The time was wrong on a PDC for one of our domains, about 3 minutes off. We
have since changed the NTP server data on that server and it has the correct
time now. Do I really have to wait 8 hours before the workstations sync to the
correct time? Is there a way to make them sync sooner? Other
use psexec and a list of computers in a text file to send the command *w32tm
/resync*
On 9 February 2010 15:53, James Kerr cluster...@gmail.com wrote:
The time was wrong on a PDC for one of our domains, about 3 minutes off.
We have since changed the NTP server data on that server and it has
What happens when you run:
w32tm /resync
From: James Kerr [mailto:cluster...@gmail.com]
Sent: Tuesday, February 09, 2010 10:54 AM
To: NT System Admin Issues
Subject: Workstation time sync
The time was wrong on a PDC for one of our domains, about 3 minutes off.
We have since
Thats a good idea, thanks for that.
James
- Original Message -
From: James Rankin
To: NT System Admin Issues
Sent: Tuesday, February 09, 2010 10:51 AM
Subject: Re: Workstation time sync
use psexec and a list of computers in a text file to send the command w32tm
/resync
-639-3505
MCSE, MCP+I, ME, CCA, Security +, Network +
From: Kennedy, Jim [mailto:[EMAIL PROTECTED]
Sent: Tuesday, November 18, 2008 1:31 PM
To: NT System Admin Issues
Subject: RE: Domain Controllers time sync software
+1
Did that 5 years ago and have never
Thanks for very informative string of suggestions!
Greatly appreciated.
~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/ ~
What is the time-sync software hardware that the list uses? In our environment
- for FW reasons the sync with default time sysnc are not working and we are in
the process of buying some hardware appliacne with can provide time services.
In the meantime, does anyone has use some software option
is the time-sync software hardware that the list uses? In our environment - for FW reasons the sync with default time sysnc are not working and we are in the process of buying some hardware appliacne with can provide time services.
In the meantime, does anyone has use some software option which can
software
will do the trick? Both routes will most likely require FW modifications,
whether you have the DC do time on its own, or point it to a different
internal time server on the network.
Klint
Juned Shaikh wrote:
What is the time-sync software hardware that the list uses? In our
sync software
What is the time-sync software hardware that the list uses? In our environment
- for FW reasons the sync with default time sysnc are not working and we are in
the process of buying some hardware appliacne with can provide time services.
In the meantime, does anyone has use some
I think both Troy and Marvin are correct.
It sounds like Juned does not have FW rules in place to allow time sync
to work directly from his DC. Yes, he should use W32Time as Troy
suggests, and should point to an edge device (or other device that has a
time service running on it) as Marvin
, 2008 9:05 AM
To: NT System Admin Issues
Subject: Domain Controllers time sync software
What is the time-sync software hardware that the list uses? In our environment
- for FW reasons the sync with default time sysnc are not working and we are in
the process of buying some hardware appliacne with can
Thanks Kurt.
If all this IT stuff falls away, I smell a career for you in legal arbitration!
-troy
-Original Message-
From: Klint Price - ArizonaITPro [mailto:[EMAIL PROTECTED]
Sent: Tuesday, November 18, 2008 9:47 AM
To: NT System Admin Issues
Subject: Re: Domain Controllers time sync
+1
Did that 5 years ago and have never touched the time service since.
From: MarvinC [mailto:[EMAIL PROTECTED]
Sent: Tuesday, November 18, 2008 12:25 PM
To: NT System Admin Issues
Subject: Re: Domain Controllers time sync software
Do you have Cisco on the edge? If so synch the PDC emulator
On Tue, Nov 18, 2008 at 12:10 PM, Klint Price - ArizonaITPro
[EMAIL PROTECTED] wrote:
If the default is not working, why do you think the additional software will
do the trick?
You can buy hardware time sources. For example, some
computer-connected GPS receivers can also provide a time
On Tue, Nov 18, 2008 at 12:59 PM, Ben Scott [EMAIL PROTECTED] wrote:
On Tue, Nov 18, 2008 at 12:10 PM, Klint Price - ArizonaITPro
[EMAIL PROTECTED] wrote:
If the default is not working, why do you think the additional software will
do the trick?
You can buy hardware time sources. For
On Tue, Nov 18, 2008 at 4:40 PM, Kurt Buff [EMAIL PROTECTED] wrote:
No IP connection/ exposed API == Needs special driver.
Quite possibly. I never said it wouldn't need a driver, just that
it wouldn't need a network connection. :)
Some of those GPS gadgets hook up via RS-232 serial port,
On Tue, Nov 18, 2008 at 2:08 PM, Ben Scott [EMAIL PROTECTED] wrote:
On Tue, Nov 18, 2008 at 4:40 PM, Kurt Buff [EMAIL PROTECTED] wrote:
Bad juju.
Depends on the environment. In some situations, you're not allowed
outside network connectivity, but loading software for a time source
would be
On Tue, Nov 18, 2008 at 2:40 PM, Ben Scott [EMAIL PROTECTED] wrote:
On Tue, Nov 18, 2008 at 5:21 PM, Kurt Buff [EMAIL PROTECTED] wrote:
As a point of curiosity - I'm assuming that there is some sort of
internal switching going on with the NISP.
The NISP (National Industrial Security Program)
On Tue, Nov 18, 2008 at 5:21 PM, Kurt Buff [EMAIL PROTECTED] wrote:
As a point of curiosity - I'm assuming that there is some sort of
internal switching going on with the NISP.
The NISP (National Industrial Security Program) is just the
jurisdiction most private industry contractors doing
w32time.exe is also available free from microsoft and handles NTP sources
... Joe
-Original Message-
From: Luberti, Carl [mailto:[EMAIL PROTECTED]]
Sent: Friday, September 28, 2001 11:08 AM
To: NT System Admin Issues
Subject: RE: Time Sync to outside NTP server in NT4
You'll need
W32Time
See the following:
http://www.ultratech-llc.com/KB/?File=TimeSync.TXT
- ASB
-Original Message-
From: Jesse Rink [mailto:[EMAIL PROTECTED]]
Sent: Friday, September 28, 2001 12:27 PM
To: NT System Admin Issues
Subject: Time Sync to outside NTP server in NT4
I know I can
Message-
From: Andrew Baker [mailto:[EMAIL PROTECTED]]
Sent: Friday, September 28, 2001 11:52 AM
To: NT System Admin Issues
Subject: RE: Time Sync to outside NTP server in NT4
W32Time
See the following:
http://www.ultratech-llc.com/KB/?File=TimeSync.TXT
- ASB
-Original Message
I know I can get my NT workstation to sync time with my PDC or other
server when specified through a logon script... How do I get my PDC to
sync with a NTP server outside my network? Using NET TIME only seems to
allow netbios names for the destination computer and not FQDNs.
Any idea?
Thanks
I have a perl script that I run from sql executive as a job to sync time
with bitsy.mit.edu
Jim
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