[ntp:questions] Re: abuse or bug ?

Ronan Flood ronan at noc.ulcc.ac.uk
Mon Jan 31 18:59:32 UTC 2005

On Fri, 28 Jan 2005 23:47:53 +0000 (UTC),
henkp at cs.uu.nl (Henk Penning) wrote:

>     ntp      : ntp  4.2.0-r2
>     config :
>       server pool.ntp.org
>       driftfile       /var/lib/ntp/ntp.drift
>       restrict default notrust nomodify

Doesn't that "notrust" make his ntpd ignore your server, as it means
"must use crypto" in ntp 4.2 ?  Maybe this combination causes the
per-second requests you see ...  He should try changing it to nopeer.

>   He sent me some diagnostics:
> sempi at gandalf sempi $ ntpdc -c pee -c loo -c sysi

Would be worth checking "ntpdc -c iostats -c sysstats", before
changing the restrict.

> sempi at gandalf sempi $ ntpq -p
> remote          refid      st t when poll reach   delay   offset jitter
> ==============================================================================
> doei.cs.uu.nl   .RSTR.     16 u    -   64    0    0.000    0.000 4000.00

Unreachable, yet you receive his requests: implies a problem at his end.

                      Ronan Flood <R.Flood at noc.ulcc.ac.uk>
                        working for but not speaking for
             Network Services, University of London Computer Centre
     (which means: don't bother ULCC if I've said something you don't like)

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