On Tue, Dec 04, 2001 at 05:38:59PM +0800, ethan wrote:
> Tried that and got:
> [root@Echelon dev]# ntpdate -u time-a.nist.gov
> 4 Dec 17:36:42 ntpdate[1976]: no server suitable for synchronization found

> Is it my firewall ?

        Probably.  Are you allowing port 123/tcp and 123/udp through?
If not, you have your answer.  Only open up the ports to the servers
you want to talk to, however, or use a stateful firewall.

> Petr Jerabek wrote:

> >THANX A LOT
> >
> >L> Try this in you CRON tab file
> >
> >L> 30 */6 * * * root /usr/sbin/ntpdate -u time-a.nist.gov
> >L> updates every 6 hours and even reports to /var/spool/mail/root
> >L> it works fo me!

        Uh...  Try and find a nice stratum 2 or stratum 3 server
unless you are acting as a stratum 2 for a large network behind you.
The stratum 1 servers DON'T need everyone's individual workstation
trying to sync to them.  I run two stratum 2 servers with well over
a thousand workstations behind them.  The stratum 1s I sync to
{tick,tock,tycho}.usno.navy.mil only see my two servers.  They don't
need to see the screaming hords that I deal with and keep coralled.  :-/

        I was GOING TO refer you over to www.ntp.org for the list of
time servers where you can find some stratum 2 servers but it seems that
someone has foo'ed their DNS and www.ntp.org is currently aliased to
maccarony.ntp.org which is aliased to www.ntp.org.  Doh!  Maybe the
wakeup call I just sent over to the webmaster will help them fix it.

> >L> Mike
> >
> >L> -----Original Message-----
> >L> From: Edward Dekkers [mailto:[EMAIL PROTECTED]]
> >L> Sent: Monday, 3 December 2001 21:54
> >L> To: [EMAIL PROTECTED]
> >L> Subject: Re: Time syncing
> >
> >
> >>>I need to manage automatics time syncing (GMT +1). I think about 1 hour
> >>>checking for correct time in CRONTAB.
> >>>HOW TO DO IT???
> >>>
> >
> >L> man ntpdate
> >L> man hwclock
> >
> >L> Regards,
> >
> >L> --
> >L> Edward Dekkers (Director)
> >L> Triple D Computer Services Pty. Ltd.
> >L> 822 Rowley Road
> >L> Oakford W.A. 6121
> >L> +61 8 9397-1040
> >L> ABN: 33 635 238 024

        [...] (Please delete list trailers)

        [...] (Please dump gratuitous advertisement trailers)

        [In other words - please edit your replies and trim the cruft!]

        Mike
-- 
 Michael H. Warfield    |  (770) 985-6132   |  [EMAIL PROTECTED]
  /\/\|=mhw=|\/\/       |  (678) 463-0932   |  http://www.wittsend.com/mhw/
  NIC whois:  MHW9      |  An optimist believes we live in the best of all
 PGP Key: 0xDF1DD471    |  possible worlds.  A pessimist is sure of it!



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