Andrew,
Thank you for the feedback regarding Microsoft implementation of NTP client
modes.
Actually, in Windows Behavior of [MS-SNTP], the section below describes
how Windows clients set the Mode field.
[MS-SNTP] Windows Behavior <13>
In Windows 2000, the client always sets the Mode field of its Client NTP
Request messages to 0x3 ("Client"). In Windows XP, Windows Server 2003, Windows
Vista, and Windows Server 2008, a client that is also a time source sets the
Mode field of its Client NTP Request messages to 0x1 ("Symmetric Active"),
while a client that is not a time source sets the Mode field in its Client NTP
Request messages to 0x3 ("Client"). By default, a client running on a domain
controller is also a time source. The syntax and semantics for the Mode field
of the Client NTP Request message are specified in [RFC1305] Appendix A.
Thanks !
-----Original Message-----
From: Andrew Bartlett [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 11, 2008 6:14 PM
To: Hongwei Sun
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: Registry Setting to change NTP clients not to run as 'symmetric
active'
On Wed, 2008-06-11 at 09:26 -0700, Hongwei Sun wrote:
> Andrew,
>
>
>
> In Window XP and Window 2003, the mode of client used to
> synchronize with time server is specified in registry key HKLM\SYSTEM
> \CurrentControlSet\Services\W32Time\Parameters\NtpServer.
Sure, but my point is that the protocol docs do not indicate Microsoft's
unfortunate behaviour in this area (clients should be clients, not
symmetric active), even in the windows-specific behaviours section.
I'm well aware that the registry setting can be modified, but in terms of
interoperability the pain comes from existing clients over which a server
implementer does not have control.
The fundamental flaw is in Microsoft's implementation in this case.
Andrew Bartlett
--
Andrew Bartlett
http://samba.org/~abartlet/
Authentication Developer, Samba Team http://samba.org
Samba Developer, Red Hat Inc.
_______________________________________________
cifs-protocol mailing list
[email protected]
https://lists.samba.org/mailman/listinfo/cifs-protocol
