[Samba] How 'accurate' is time sync on the samba server?

John H Terpstra jht at samba.org
Mon May 5 23:52:12 GMT 2003


On Mon, 5 May 2003, Jason Williams wrote:

> Not long at all actually. Around 10 seconds to get the user logged in.

Even that is a long time. And it certainly does not explain the delta.
Have you give your users the right to change the system time on each
workstation?

- John T.

>
> Jason
>
> At 11:42 PM 5/5/2003 +0000, you wrote:
> >On Mon, 5 May 2003, Jason Williams wrote:
> >
> > > Well, as it stands right now, what I noticed is that the server may be at
> > > 4:05:15
> > > At the same time, the test client was at 4:04:45. Even though it is roughly
> > > a 30-35 second time difference, I would prefer it to be a little closer.
> > > Maybe around 10-15 second time difference, if possible.
> >
> >How long is the logon sequence taking?
> >
> >- John T.
> >
> > >
> > > I thought about installing a client NTP service, such as one from
> > > http://www.analogx.com
> > >
> > > Probably best to install clients on each one I would imagine then?
> > >
> > > Jason
> > >
> > > At 11:27 PM 5/5/2003 +0000, you wrote:
> > > >On Mon, 5 May 2003, Jason Williams wrote:
> > > >
> > > > > Just as the subject states, how close and accurate can time
> > synchronization
> > > > > be with Samba as a PDC and Windows Clients connecting to the PDC with
> > > > net time?
> > > >
> > > >What you are seeing is par for the course.
> > > >
> > > >If you want tighter time synchronization I would suggest that you install
> > > >on each client an NTP service that syncs with atomic clocks.
> > > >
> > > >- John T.
> > > >
> > > > >
> > > > > I have setup a logon script, so when all Win2k clients connect to
> > the PDC,
> > > > > they will receive the logon script and use the PDC as their time
> > server.
> > > > >
> > > > > What I have noticed in my testing is that it is not entirely 100%
> > accurate?
> > > > > For example, I noticed about a 35 second difference  between the
> > PDC and a
> > > > > test client.
> > > > >
> > > > > I have set time server =yes
> > > > > I set the script to be:
> > > > >
> > > > > net time \\sambatest /set /yes
> > > > >
> > > > > I made sure the logon.bat file is a MS-DOS style file.
> > > > >
> > > > > Thoughts?
> > > > >
> > > > > Jason
> > > > >
> > > > >
> > > >
> > > >--
> > > >John H Terpstra
> > > >Email: jht at samba.org
> > >
> >
> >--
> >John H Terpstra
> >Email: jht at samba.org
>

-- 
John H Terpstra
Email: jht at samba.org


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