RE: SOLVED! RE: Time Sync Problem
- From: "Amy Babinchak" <amy@xxxxxxxxxxxxxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 29 Sep 2004 16:17:45 -0400
Raji,
That article would only apply to you if your ISA server were a Windows
2003 forest root PDC master computer which I assume your ISA2004 server
is not. It's usually just us SBS people that find ourselves in this
situation.
You are right about the AnnounceFlags though, they explain all of the
settings except that one. The rest are explain at the end of the
article.
Amy
-----Original Message-----
From: Raji Arulambalam [mailto:RajiA@xxxxxxxxxxxxxx]
Sent: Wednesday, September 29, 2004 3:04 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: SOLVED! RE: Time Sync Problem
http://www.ISAserver.org
Hi
Are there any docs that explain what these keys are? eg: what does
AnnounceFlags do, or the others
Article 816042 does not explain what these means.
I have this working in ISA 2004 to sync externally and then serve
requests from the local PDCs.
Thanks
-----Original Message-----
From: Amy Babinchak [mailto:amy@xxxxxxxxxxxxxxxxxxxxxxxxxx]
Sent: Thursday, September 30, 2004 6:20 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: SOLVED! RE: Time Sync Problem
http://www.ISAserver.org
In addition to the packet filter that you have you will need to edit the
registry to be able to sync with an external source.
An long excerpt from an even longer KB article:
Configuring the Windows Time service to use an external time source
To configure an internal time server to synchronize with an external
time source, follow these steps:
Change the server type to NTP. To do this, follow these steps:
Click Start, click Run, type regedit, and then click OK.
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\
Type
In the right pane, right-click Type, and then click Modify.
In Edit Value, type NTP in the Value data box, and then click OK.
Set AnnounceFlags to 5. To do this, follow these steps:
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config\Anno
unceFlags
In the right pane, right-click AnnounceFlags, and then click Modify.
In Edit DWORD Value, type 5 in the Value data box, and then click OK.
Enable NTPServer. To do this, follow these steps:
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProvide
rs\NtpServer\Enabled
In the right pane, right-click Enabled, and then click Modify.
In Edit DWORD Value, type 1 in the Value data box, and then click OK.
Specify the time sources. To do this, follow these steps:
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\
NtpServer
In the right pane, right-click NtpServer, and then click Modify.
In Edit Value, type Peers in the Value data box, and then click OK.
Note Peers is a placeholder for a space-delimited list of peers from
which your computer obtains time stamps. Each DNS name that is listed
must be unique. You must append ,0x1 to the end of each DNS name. If you
do not append ,0x1 to the end of each DNS name, the changes made in step
5 will not take effect.
Select the poll interval. To do this, follow these steps:
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProvide
rs\NtpClient\SpecialPollInterval
In the right pane, right-click SpecialPollInterval, and then click
Modify.
In Edit DWORD Value, type TimeInSeconds in the Value data box, and then
click OK.
Note TimeInSeconds is a placeholder for the number of seconds that you
want between each poll. A recommended value is 384. This value
configures the Time Server to poll every 15 minutes.
Configure the time correction settings. To do this, follow these steps:
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config\MaxP
osPhaseCorrection
In the right pane, right-click MaxPosPhaseCorrection, and then click
Modify.
In Edit DWORD Value, select Decimal in the Base box.
In Edit DWORD Value, type TimeInSeconds in the Value data box, and then
click OK.
Note TimeInSeconds is a placeholder for a reasonable value, such as 1
hour (3600) or 30 minutes (1800). The value that you select will depend
upon the poll interval, network condition, and external time source.
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config\MaxN
egPhaseCorrection
In the right pane, right-click MaxNegPhaseCorrection, and then click
Modify.
In Edit DWORD Value, select Decimal in the Basebox.
In Edit DWORD Value, type TimeInSeconds in the Value data box, and then
click OK.
Note TimeInSeconds is a placeholder for a reasonable value, such as 1
hour (3600) or 30 minutes (1800). The value that you select will depend
upon the poll interval, network condition, and external time source.
Amy
-----Original Message-----
From: Peter W. Merner [mailto:pmerner@xxxxxxxxxxxxx]
Sent: Wednesday, September 29, 2004 1:14 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: SOLVED! RE: Time Sync Problem
http://www.ISAserver.org
Gather you have a working ntp now. Does it differ from mine, maybe I
should
copy whatever works for you.
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