Time Broadcast

BigDawg · 12-03-2003, 02:51 PM

Hey everyone!
Here is my question: how does network time work? Is there some daemon running on some network server that broadcasts a time that any nodes on the network pick up and use?
Thanks for all responses.

druuna · 12-03-2003, 03:04 PM

Take a look here:

http://www.ntp.org/

The official ntp homepage.

Tinkster · 12-03-2003, 03:11 PM

In addition one might say that it's not a
boradcast, but the clients poll it :}

Cheers,
Tink

BigDawg · 12-03-2003, 09:25 PM

Thanks for the reponses.

chort · 12-04-2003, 12:53 AM

Actually it is possible to multicast (and I think broadcast too?). It's really not recommended, though. In most cases setting a cron job to run rdate every few hours is acceptable. For systems that must have very accurate time (such as log correlation) you will want to setup ntpd with peers.