[Samba] Re: Time server
mike at powys-training.co.uk
Thu Apr 29 08:34:08 GMT 2004
Um, don't know where my original reply went to ! but...
Thanks. I've set that up but it doesn't seem to be doing anything :-(
I found other, very similar instructions on the 'net...
Under "my computer", "manage", "services & applications", "services" made
sure that Windows Time was set to start automatically. Then in a DOS box
ran the following commands
net stop "Windows Time"
net time /setsntp:172.16.15.4 (my samba server)
net start "Windows Time"
Still no errors but hasn't yet synchronised the time with the server.
In Samba I have in the Globals section:-
map to guest = Bad Password
guest account = nobody
Is that right ?
I *can* use the DOS command: net time \\172.16.15.4 /SET /y and the
does sync to the server.
----- Original Message -----
From: "Malcolm Baldridge" <google at paypc.com>
To: <samba at lists.samba.org>
Sent: Wednesday, April 28, 2004 1:26 AM
Subject: Re: [Samba] Re: Time server
> This will not automatically work against Samba, as we mimic NT4, which
> didn't know about NTP.
> But you can manually configure the NTP server on the client, and run an
> NTP server on your PDC if you wish.
The Microsoft time services are substandard and do not implement a full NTP
time management protocol. It's best to leave that to a real implementation
like the xntpd-4 (or equivalent commercialised NT/2000 products built on
If you want to use the W32Time services, use them as clients. The default
(under 2000) is to resync the time periodically in increasing intervals,
settling in at about 3 syncs/day, I believe.
Simple recipe to configure Windows servers to use it:
net stop w32time
net time /setsntp: dns-name-of-real-ntp-server (or it's ip#)
w32time -s (hit Control-C if it doesn't return after 4 or 5 seconds)
(yes, sometimes it takes a couple of tries to get the time locked down)
net start w32time
Then make sure in the Services control panel that the Windows Time Service
is configured to auto-start. Thereafter, it will resync every 45 minutes
until the error is under 1 second, and then resync every 8 hours from that
point forward. No clock-skew adjustments or other time conditioning is
attempted, unlike a real NTP implementation.
The MS W32time service seems to only care about one-second accuracy. Be
aware of this if you "chain" time services as this jitter will accumulate.
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