Just my personal opinion, but running rdate every 10 mins seems
a bit too frequent. If the system clock drifts enough to warrant
that frequent an update (i.e. drifts 1 sec every 10 mins), the
system clock should perhaps be "trained" via xntp or adjtimex(8).
I've found that even for the crappy desktop PC's I have here that
a little fiddling with adjtimex can get it so the system clock
drifts less than roughly 40ms/day (much of this is due to thermal
drift!).
Anyway, after the adjtimex setting, then doing a rdate via cron once a
day is more than enough (in fact can go for about 20 days before a
second is lost). Laptops (compaq&sony) seem to be a different story,
the adjtimex settings seem to 'stick' for only about a week or so. bah!
It is true that frequent rdate's in crontab is the simplest to set up, but
it may be a of a waste of the time resource if lots of people did it...
Best,
Karl Runge
On Wed, 19 Apr 2000, "Jerry Feldman" <[EMAIL PROTECTED]> wrote:
> We run rdate on the BLU server. We have a cron task that runs every 10
> mins. Every once in a while we get a timeout, but the dates have been
> maintained accuratly enough. If you are doing development locally via
> NFS, then you may also need to run a time server on your internal
> network.
>
> On 19 Apr 2000, at 6:25, Karl J. Runge wrote:
>
> >
> > Or you probably already have rdate(1) on your system. E.g.:
> >
> > # rdate -s time.nist.gov
> >=
> Jerry Feldman <[EMAIL PROTECTED]>
> Associate Director
> Boston Linux and Unix user group
> http://www.blu.org
>
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