ρύθμιση ntp για update ώρας μηχανήματος;

[Antonis Christofides]

> Oct 14 00:00:10 smf-deb ntpd[6653]: kernel time sync status 0040
> Oct 14 00:00:10 smf-deb ntpd[6653]: frequency initialized -500.000 PPM
> from /var/lib/ntp/ntp.drift
> Oct 13 20:32:23 smf-deb ntpd[6653]: synchronized to 155.207.113.227,
> stratum 3
> Oct 13 20:32:23 smf-deb ntpd[6653]: time reset -12480.330449 s
> Oct 13 20:32:23 smf-deb ntpd[6653]: kernel time sync status change 0001
>
> Διορθώνει το ρολόι δηλαδή. Μετά όμως απο λίγη ώρα, και ενώ συνεχίζει να
> τρέχει ο δαίμονας, ενώ είναι 21:32, το ρολόι δείχνει
> smf-deb:/var/log# date
> Sat Oct 13 21:58:50 EEST 2007

Δεν είμαι ειδικός, αλλά κάνω την υπόθεση ότι το drift -500 που είναι
αποθηκευμένο στο /var/lib/ntp/ntp.drift είναι πολύ μεγάλο. Θα πρότεινα
να δοκιμάσεις να stop τον ntp, σβήσε το αρχείο, και ξεκίνα τον ntp.

Παραθέτω και το σχετικό απόσπασμα από το man ntpd.

       driftfile driftfile

              This  command specifies the name of the file use to
              record the frequency offset of the local clock
              oscillator.  If the file exists, it is read at startup
              in order to set the initial frequency offset and then
              updated once per hour with the  current frequency
              offset  computed  by the daemon.  If the file does not
              exist or this command is not given, the initial
              frequency offset is assume zero.  In this case, it may
              take some hours for the frequency to stabilize and the
              residual timing  errors to subside.

       The  file  format consists of a single line containing a single
       floating point number, which records the frequency offset
       measured in parts-per-million (PPM).  The file is updated by
       first writing the current drift value into a temporary file and
       then  renaming this  file  to  replace  the  old  version.
       This implies that ntpd must have write permission for the
       directory the drift file is located in, and that file system
       links, symbolic or otherwise, should be avoided.