Time service sync

[Guest Cnews]

Hello

After setting the time on the FSMO DC in a 2003 AD network of 3 DCs and 30

workstations, how long does it take to sync entire network. Do I need to

run any other commands?

 

Thanks

 

CARl

[Guest Meinolf Weber]

Re: Time service sync

 

Hello CNews,

 

Important is that the time source is the PDCEmulator. Did you configure it

to use an external time source or just set the time on it? To configure it

for an external time source you can use this:

 

PDCEmulator:

 

w32tm /config /manualpeerlist:peers /syncfromflags:manual /reliable:yes /update

 

With "peers" you can set the time source, either DNS name (time.windows.com)

or an ip address from a reliable time source.

 

Here you can find some of them:

http://www.pool.ntp.org/

 

 

To configure a client computer for automatic domain time synchronization

 

w32tm /config /syncfromflags:domhier /update

 

After that run:

 

net stop w32time

 

net start w32time

 

Best regards

 

Meinolf Weber

Disclaimer: This posting is provided "AS IS" with no warranties, and confers

no rights.

** Please do NOT email, only reply to Newsgroups

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> Hello

> After setting the time on the FSMO DC in a 2003 AD network of 3 DCs

> and 30

> workstations, how long does it take to sync entire network. Do I

> need to

> run any other commands?

> Thanks

>

> CARl

>

[Guest NVVN]

Re: Time service sync

 

In article <ff16fb66a420d8cab801af2df9ac@msnews.microsoft.com>, Meinolf

Weber <meiweb(nospam)@gmx.de> says...

 

=> w32tm /config /manualpeerlist:peers /syncfromflags:manual /reliable:yes /update

 

Where is difference if I use at PDC:

 

net time /setsntp:ip_address_of_sntp_server

 

Also, I've setup all my client computers with:

 

net time /setsntp:""

 

Without that, I've always get W32time sync errors.

[Guest Bruce Sanderson]

Re: Time service sync

 

I don't know if Microsoft has "officially" said that the net time command is

deprecated or not, but for all practical purposes, I suggest it not be used

any more.

 

The w32tm command is the preferred way of configuring the Windows Time

service.

 

From what I have found out:

 

net time /setsntp:ip_address

or

net time /setsntp:TimeServerDNSName (e.g. time.nrc.ca)

 

is equivalent to:

 

w32tm /config /syncfromflags:manual /manualpeerlist:ip_address /update

or

w32tm /config /syncfromflags:manual /manualpeerlist:TimeServerDNSName

 

This tells the Windows Time service to synchronize the computer's time with

a particular NTP server.

 

net time /setsntp:

 

is equivalent to:

 

w32tm /config /syncfromflags:domhier /update

 

This tells the Windows Time service to synchronize time using the Domain

time synchronization hierarchy. For domain members (clients) this means

synchronize with a domain controller. When a computer is joined to a

domain, this setting is made automatically and there is usually no reason to

change it.

 

There should be one domain controller in the forest that synchronizes time

with an external source. In a small forest, this is usually the domain

controller of the root domain that has the PDC FSMO role.

 

See:

http://technet.microsoft.com/en-us/library/cc776782.aspx

http://technet.microsoft.com/en-us/library/cc739801.aspx

http://technet.microsoft.com/en-us/library/cc786897.aspx

http://technet.microsoft.com/en-us/library/cc784800.aspx

http://technet.microsoft.com/en-us/library/cc738042.aspx

http://technet.microsoft.com/en-us/library/cc773263.aspx

http://technet.microsoft.com/en-us/library/cc773061.aspx

 

--

Bruce Sanderson

http://members.shaw.ca/bsanders

 

It is perfectly useless to know the right answer to the wrong question.

 

 

 

"NVVN" <me@we.com> wrote in message

news:MPG.232899af695b520a989687@msnews.microsoft.com...

> In article <ff16fb66a420d8cab801af2df9ac@msnews.microsoft.com>, Meinolf

> Weber <meiweb(nospam)@gmx.de> says...

>

> => w32tm /config /manualpeerlist:peers /syncfromflags:manual /reliable:yes

> /update

>

> Where is difference if I use at PDC:

>

> net time /setsntp:ip_address_of_sntp_server

>

> Also, I've setup all my client computers with:

>

> net time /setsntp:""

>

> Without that, I've always get W32time sync errors.