SNTP service from Windows XP or Windows Vista?

For various reasons I have a firewall completely inhibiting
some of the older computers in my local network from
accessing Internet while they still have full access to all
computers on my local network.

However I would still like to maintain syncronization of the
system clocks in these computers if that is possible, so I
did a crude test of simply specifying the local IP addresses
for one computer running Windows XP and one computer
running Windows Vista in my local network to my SNTP
client program (D4).

Not exactly unexpected my SNTP client timed out waiting
for answers.

Is my idea at all tenable or would I need a local server (which
I do not have and have absolutely no intention of procuring)

regards Sven

(Intentionally cross-posted as this relates to both XP and Vista)

You would need to run an SNTP server on one of your computers.

--
Richard G. Harper [MVP Shell/User]
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"Sven Pran" <> wrote in message
news:%...
> For various reasons I have a firewall completely inhibiting
> some of the older computers in my local network from
> accessing Internet while they still have full access to all
> computers on my local network.
>
> However I would still like to maintain syncronization of the
> system clocks in these computers if that is possible, so I
> did a crude test of simply specifying the local IP addresses
> for one computer running Windows XP and one computer
> running Windows Vista in my local network to my SNTP
> client program (D4).
>
> Not exactly unexpected my SNTP client timed out waiting
> for answers.
>
> Is my idea at all tenable or would I need a local server (which
> I do not have and have absolutely no intention of procuring)
>
> regards Sven
>
> (Intentionally cross-posted as this relates to both XP and Vista)
>
>
>
>

Sven Pran wrote:
> For various reasons I have a firewall completely inhibiting
> some of the older computers in my local network from
> accessing Internet while they still have full access to all
> computers on my local network.
>
> However I would still like to maintain syncronization of the
> system clocks in these computers if that is possible, so I
> did a crude test of simply specifying the local IP addresses
> for one computer running Windows XP and one computer
> running Windows Vista in my local network to my SNTP
> client program (D4).
>
> Not exactly unexpected my SNTP client timed out waiting
> for answers.
>
> Is my idea at all tenable or would I need a local server (which
> I do not have and have absolutely no intention of procuring)
>
> regards Sven
>
> (Intentionally cross-posted as this relates to both XP and Vista)
>
>
>
>


That used to work Sven, net time set should give you options and
syntax... of course you will have to allow access to the right port in
the server machine.

IIRC you have to set the server ip or network name using the net time
command line setting, but it seem like it just "Worked". There may be a
service you have to start in Vista, but if you use net time you
shouldn't need any 3rd party software at all.

Charlie Tame wrote:
> Sven Pran wrote:


http://technet2.microsoft.com/Window....mspx?mfr=true

This link may help, seems like it have become a little more sophisticated...

"Charlie Tame" <> wrote in message
news:...
> Charlie Tame wrote:
>> Sven Pran wrote:
>
>
> http://technet2.microsoft.com/Window....mspx?mfr=true
>
> This link may help, seems like it have become a little more
> sophisticated...

Thanks.

I must admit I had some problems digesting that article, but at least it
indicates that Windows Vista can indeed be configured the way I hope
(although I missed a precise description on how to do this configuration):

1: Syncronize its own system clock with an external time reference.
2: Provide SNTP services to other computers in my LAN.

At present I have Dimension D4Time set up on my XP computer doing
both these activities. A Windows 98 computer on my LAN uses D4Time
as a pure SNTP client for syncronizing time from this XP compuoter.

But D4Time is not (yet?) announced to support Windows Vista, and soon
my new Vista computer will take over as my main computer leaving it
undesirable to have XP providing SNTP services in my LAN.

Sven Pran wrote:
> "Charlie Tame" <> wrote in message
> news:...
>> Charlie Tame wrote:
>>> Sven Pran wrote:
>>
>> http://technet2.microsoft.com/Window....mspx?mfr=true
>>
>> This link may help, seems like it have become a little more
>> sophisticated...
>
> Thanks.
>
> I must admit I had some problems digesting that article, but at least it
> indicates that Windows Vista can indeed be configured the way I hope
> (although I missed a precise description on how to do this configuration):
>
> 1: Syncronize its own system clock with an external time reference.
> 2: Provide SNTP services to other computers in my LAN.
>
> At present I have Dimension D4Time set up on my XP computer doing
> both these activities. A Windows 98 computer on my LAN uses D4Time
> as a pure SNTP client for syncronizing time from this XP compuoter.
>
> But D4Time is not (yet?) announced to support Windows Vista, and soon
> my new Vista computer will take over as my main computer leaving it
> undesirable to have XP providing SNTP services in my LAN.
>
>


Well there are other articles but was at work clearing snow so didn't
have time to look harder.

IIRC it was completely successful from the client end as far back as
Windows 3.1, though maybe you used Netbios name and no IP... but W2000
certainly could do it. Haven't bothered since to check the setup as I
don't really need it at home.

In article <#>,
Sven Pran <> wrote:
>For various reasons I have a firewall completely inhibiting
>some of the older computers in my local network from
>accessing Internet while they still have full access to all
>computers on my local network.
>
>However I would still like to maintain syncronization of the
>system clocks in these computers if that is possible, so I

The easisest solution is just to pass port 123 (UDP) and allow them
to synch with an internet time server. If you can't do that Windows server
includes the time service (it's required for Kerberos) so you could synch
the your local Windows server(s).

"the wharf rat" <> wrote in message
news:fiugt6$kjt$...
> In article <#>,
> Sven Pran <> wrote:
>>For various reasons I have a firewall completely inhibiting
>>some of the older computers in my local network from
>>accessing Internet while they still have full access to all
>>computers on my local network.
>>
>>However I would still like to maintain syncronization of the
>>system clocks in these computers if that is possible, so I
>
> The easisest solution is just to pass port 123 (UDP) and allow them
> to synch with an internet time server. If you can't do that Windows
> server
> includes the time service (it's required for Kerberos) so you could synch
> the your local Windows server(s).

The problem is that when I tried to just specify the IP address of my
local Windows Vista machine to the SNTP client in the Windows 98
machine the client (D4Time) received no response and just timed out.

Apparently (and not unexpected) I must configure my Windows Vista
to provide SNTP services for other machines in my LAN, but I am at
a loss on what configuration specifications are needed?

I have no Windows Server and have no intention of getting one.

(D4Time provides SNTP services in addition to act as SNTP client
when run on Windows XP, but is not documented to be Vista
compatible.)

regards Sven

In article <>,
Sven Pran <> wrote:
>
>Apparently (and not unexpected) I must configure my Windows Vista
>to provide SNTP services for other machines in my LAN, but I am at
>a loss on what configuration specifications are needed?
>

It's quite a pain.

http://technet2.microsoft.com/Window....mspx?mfr=true

You're really better off just passing 123 UDP.

Wonder why they made it so hard to set up in Vista?

"the wharf rat" <> wrote in message
news:fiunel$jm$...
> In article <>,
> Sven Pran <> wrote:
>>
>>Apparently (and not unexpected) I must configure my Windows Vista
>>to provide SNTP services for other machines in my LAN, but I am at
>>a loss on what configuration specifications are needed?
>>
>
> It's quite a pain.
>
> http://technet2.microsoft.com/Window....mspx?mfr=true
>
> You're really better off just passing 123 UDP.
>
> Wonder why they made it so hard to set up in Vista?

As a matter of security I do not want to allow anything between this
computer and Internet

I have already read the article above and am no more wiser.

The article contains several references to:

Computer Configuration\Administrative Templates\System\Windows Time Service

and I cannot even locate the root: "Computer Configuration", whatever that
is.

Nor have I so far fouond any advice in my Vista on how it can be set to give
(S)NTP
service to other (local) computers.

Sven