Time server (prominte delsi)

[Vaclav Babicky]

Ondrej Filip wrote:

> On Sat, 15 Nov 1997, Vaclav Babicky wrote:
> > Je tu nekdo, kdo se taky pokouset na svem Linuxu zporovoznit
> > NTP (xntpd) time server a chtel by se podelit se mnou o
> > zkusenosti? Ozvete se !
> Me to bezi. Co Te zajima?
>                         Feela

Diky za odpovedi.Mam instalovany xntp3-5.90. Instalace velmi pekne
zpracovana vcetne
autokonfigurace. Instalace probehla bez problemu, server take bez
problemu pracuje. Pouze ale zdanlive. Zde je vypis konfiguracniho
a "log" souboru:

   ntp.conf:

# Konfiguracni soubor pro xntpd time-server
# babicky na ipp.cas.cz, 5.10.1997
server ntps1-1.uni-erlangen.de  minpoll 8
server canon.inria.fr  minpoll 8
logfile   /etc/ntp.log
driftfile /etc/ntp.drift

   ntp.log:

Reboot ....
 2 Nov 12:09:20 xntpd[20182]: read drift of 77.857 from /etc/ntp.drift
 2 Nov 12:28:34 xntpd[20182]: synchronized to 192.93.2.20, stratum=1
 2 Nov 12:28:34 xntpd[20182]: time reset (step) 0.545292 s
 2 Nov 12:28:34 xntpd[20182]: synchronisation lost
 2 Nov 12:49:54 xntpd[20182]: synchronized to 192.93.2.20, stratum=1
 3 Nov 01:16:39 xntpd[20182]: synchronized to 131.188.2.45, stratum=1
 4 Nov 16:19:22 xntpd[20182]: synchronisation lost
 4 Nov 17:03:23 xntpd[20182]: synchronized to 131.188.2.45, stratum=1
 5 Nov 07:02:03 xntpd[20182]: synchronized to 192.93.2.20, stratum=1
 5 Nov 12:37:19 xntpd[20182]: synchronisation lost
 5 Nov 12:55:38 xntpd[20182]: synchronized to 131.188.2.45, stratum=1
 5 Nov 20:35:21 xntpd[20182]: synchronized to 192.93.2.20, stratum=1
 7 Nov 11:38:43 xntpd[20182]: synchronized to 131.188.2.45, stratum=1
 7 Nov 21:25:04 xntpd[20182]: synchronized to 192.93.2.20, stratum=1
 9 Nov 17:56:42 xntpd[20182]: synchronized to 131.188.2.45, stratum=1
Reboot ....
10 Nov 08:31:54 xntpd[102]: read drift of 77.857 from /etc/ntp.drift
10 Nov 08:51:17 xntpd[102]: synchronized to 131.188.1.45, stratum=1
10 Nov 08:51:18 xntpd[102]: time reset (step) 1.392881 s
10 Nov 08:51:18 xntpd[102]: synchronisation lost
10 Nov 09:08:27 xntpd[102]: synchronized to 192.93.2.20, stratum=1
10 Nov 11:42:04 xntpd[102]: synchronized to 131.188.1.45, stratum=1
10 Nov 15:58:01 xntpd[102]: synchronized to 192.93.2.20, stratum=1
11 Nov 17:17:06 xntpd[102]: synchronisation lost
11 Nov 17:35:55 xntpd[102]: synchronized to 131.188.1.45, stratum=1
11 Nov 19:21:44 xntpd[102]: time reset (step) 0.243378 s
11 Nov 19:21:44 xntpd[102]: synchronized to 192.93.2.20, stratum=1
11 Nov 19:21:44 xntpd[102]: synchronisation lost
11 Nov 19:39:13 xntpd[102]: synchronized to 192.93.2.20, stratum=1
12 Nov 15:29:56 xntpd[102]: synchronized to 131.188.1.45, stratum=1
12 Nov 16:01:35 xntpd[102]: time reset (step) 0.170466 s
12 Nov 16:01:35 xntpd[102]: synchronized to 192.93.2.20, stratum=1
12 Nov 16:01:35 xntpd[102]: synchronisation lost
12 Nov 16:22:56 xntpd[102]: synchronized to 131.188.1.45, stratum=1
12 Nov 17:40:38 xntpd[102]: time reset (step) 0.325330 s
12 Nov 17:40:38 xntpd[102]: synchronized to 192.93.2.20, stratum=1
12 Nov 17:40:38 xntpd[102]: synchronisation lost
12 Nov 18:01:58 xntpd[102]: synchronized to 131.188.1.45, stratum=1
12 Nov 21:05:29 xntpd[102]: time reset (step) 0.131715 s
12 Nov 21:05:29 xntpd[102]: synchronized to 192.93.2.20, stratum=1
12 Nov 21:05:29 xntpd[102]: synchronisation lost
12 Nov 21:24:10 xntpd[102]: synchronized to 192.93.2.20, stratum=1
14 Nov 07:02:02 xntpd[102]: synchronized to 131.188.1.45, stratum=1
14 Nov 13:56:57 xntpd[102]: synchronisation lost
14 Nov 14:06:15 xntpd[102]: synchronized to 192.93.2.20, stratum=1
14 Nov 15:17:35 xntpd[102]: synchronized to 131.188.1.45, stratum=1

Nyni, Nov 15 jde server bez problemu. SOS jsem poprve do konference
volal 10.listopadu, kdyz podle zapisu v log souboru se zda byti vse
v poradku, cas na Linuxu se presto zpozdoval za sync. servery o
19 sekund. Kdyby server zcepenel, tak by mi to navadilo zase az
tak mnoho. Xntpd si ale v klidu servroval, hlasil ze je
zasynchronizovan.
Po resetu se zda byti vse OK. Podobne chovani jsem zachytil jednou
jiz drive, vzhledem k tomu, za to bylo zahy po moji prvni instalaci,
pricital jsem to nejake svoji blbosti. Nyni nevim.

Mate nekdo nejaky napad ?

Dekuji, -bab-

P.S. Vsechny parametry mimo minpoll jsou default. Zvetseni minpoll
pricitam castejsi ztratu sync, to mi v tomto okamziku zas tak nestve.
-bab-