Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!usc!apple!agate!ucbvax!MORNINGSTAR.COM!bob From: bob@MORNINGSTAR.COM (Bob Sutterfield) Newsgroups: comp.protocols.time.ntp Subject: synchronizing a LAN-full of machines Message-ID: <9105171342.AA23309@volitans.morningstar.com> Date: 17 May 91 13:42:26 GMT Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: bob@morningstar.com (Bob Sutterfield) Distribution: inet Organization: The Internet Lines: 20 We use xntp exclusively in a setup similar to yours. One SPARCstation running PPP is our IP gateway to the world, and runs an xntpd that chimes with several extralocal clocks. All the other machines on our local network run xntpd or ntpd and chime with each other and the gateway machine. The load on the systems and the network is somewhere between unmeasureable and miniscule. If a machine had previously run timed when delivered, that line is commented out of its rc scripts and replaced with an NTP daemon invocation as soon as I get it compiled and running on each new architecture. In your situation, your strategy of running a harmless timed master is probably a good idea, to help with those machines that can't yet run xntpd. I don't know why Sun doesn't provide some sort of timekeeping system, especially considering how confused applications get when NFS clients and servers have different ideas about the time. A few vendors, but not many, are now shipping timekeepers with their systems. Perhaps it's a matter of waiting until the "research toys" filter down into the "real world" of commercial demands.