OK thanks for the replies gents.

I am sorry I made a typo in my first post, that being nfs instead of ntp, bit of a bum steer. However i have since found one machine did not have the daemon up.

But more importantly thanks to Torsten's remark about /sim/time/cur-time-override, I had a dig around the code and found it is utised by  the native-gui IO routine, and further to that its does time changes from the master to the slaves.


So hopefully thats the end of it. Another little item to put on my networking Flightgear machines web pages.



Cheers Harry




On Thu, Mar 3, 2011 at 3:38 AM, <castle@mminternet.com> wrote:
Here is what I use in the startup scripts for the 747 sim

# Get a time update/sync
rdate -s 69.25.96.13

where the IP address is the link to your favorite time server.  ;-)

that way it happens "auto-magically"

use it in each of your machines. It will also take care of any lags when
your machines boot asynchronously or you need to reboot an individual
machine.


John


> Coming from the unix perspective, xntp is a pretty good tool for
> maintaining
> a very accurate real time clock setting on your PC.  If you run this on
> all
> your machines they're real time clock should be *very* close to in sync.
>  Then things like --timeofday=noon should work well.  This is something
> that
> can be set remotely via the telnet interface.
>
> Curt.
>
> On Wed, Mar 2, 2011 at 6:58 AM, Harry Campigli wrote:
>
>>
>> I am looking to time sync 3 machines running FG over the network and
>> would
>> like to sync the sim times to one master machine.
>> I have them all on nfs but it seems thats not quite the trick.
>>
>> So what ever time the master is working on, be it from command at start,
>> or
>> selecting for example "noon" on the gui menu, the others follow.
>>
>> I see in sim timing properties there are lots of values in the property
>> tree, And I see system timing also comes via sim gear.
>>
>> Do is anyone familiar with the code know which is the root time source
>> on
>> the property tree?  The one I can forward to the slave machines.
>> And i guess i will need to stop the slaves from trying to overwrite this
>> value locally.
>>
>>
>> --
>> Regards Harry
>>
>>
>>
>>
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>
>
> --
> Curtis Olson:
> http://www.atiak.com - http://aem.umn.edu/~uav/
> http://www.flightgear.org -
> http://www.flightgear.org/blogs/category/curt/<http://www.flightgear.org/blogs/category/personal/curt/>
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