Discussion:
NTP
(prestaro za odgovor)
Nikolaj Lazic
2013-12-17 12:34:44 UTC
Permalink
Imam problem s NTPom preko IskonDuoCarnet... i, cini mi se da je pocelo prije
cca. mjesec i pol... mozda malo vise.
Ne mogu vise napraviti sync sata preko takve veze... nego moram otvoriti
VPN i onda prode sync.
Zasto se ne propusta NTP? Ima li nekakav sigurnosni razlog ili je to... eto..
tako.
Valentin Vidic
2013-12-18 08:46:30 UTC
Permalink
Post by Nikolaj Lazic
Imam problem s NTPom preko IskonDuoCarnet... i, cini mi se da je pocelo prije
cca. mjesec i pol... mozda malo vise.
Ne mogu vise napraviti sync sata preko takve veze... nego moram otvoriti
VPN i onda prode sync.
Zasto se ne propusta NTP? Ima li nekakav sigurnosni razlog ili je to... eto..
tako.
NTP bi trebao prolaziti, no mozda je problem u NTP posluzitelju? CARNetovi su:

zg1.ntp.carnet.hr
zg2.ntp.carnet.hr
--
Valentin
Nikolaj Lazic
2013-12-31 02:21:15 UTC
Permalink
Post by Valentin Vidic
Post by Nikolaj Lazic
Imam problem s NTPom preko IskonDuoCarnet... i, cini mi se da je pocelo prije
cca. mjesec i pol... mozda malo vise.
Ne mogu vise napraviti sync sata preko takve veze... nego moram otvoriti
VPN i onda prode sync.
Zasto se ne propusta NTP? Ima li nekakav sigurnosni razlog ili je to... eto..
tako.
zg1.ntp.carnet.hr
zg2.ntp.carnet.hr
Kad se spoji preko IskonDuoCarnet-a i napravi sync Windowsi napisu:
An error occured while Windows was syncronizing with zg1.ntp.carnet.hr.
This operation returned because the timeout period expired.

Kad ukljucim vpn...
The clock was successfully synchronized with zg1.ntp.carnet.hr...

Tak da moze biti samo nekakvo filtriranje.

Mislim da mi je i Linux javljao otprilike slicnu stvar. Timeout...
Walter Gottwein
2013-12-31 17:37:04 UTC
Permalink
Post by Nikolaj Lazic
An error occured while Windows was syncronizing with zg1.ntp.carnet.hr.
This operation returned because the timeout period expired.
Kad ukljucim vpn...
The clock was successfully synchronized with zg1.ntp.carnet.hr...
Tak da moze biti samo nekakvo filtriranje.
Mislim da mi je i Linux javljao otprilike slicnu stvar. Timeout...
Serveri su uredno dostupni sa vise razlicitih mreza (npr. ntpdate -q
uredno radi sa fly-a) tako da je problem ili lokalno ili kod
IskonDuoCarnet-a...
--
Pozdrav,
Walter
Nikolaj Lazic
2013-12-31 18:24:29 UTC
Permalink
Post by Walter Gottwein
Post by Nikolaj Lazic
An error occured while Windows was syncronizing with zg1.ntp.carnet.hr.
This operation returned because the timeout period expired.
Kad ukljucim vpn...
The clock was successfully synchronized with zg1.ntp.carnet.hr...
Tak da moze biti samo nekakvo filtriranje.
Mislim da mi je i Linux javljao otprilike slicnu stvar. Timeout...
Serveri su uredno dostupni sa vise razlicitih mreza (npr. ntpdate -q
uredno radi sa fly-a) tako da je problem ili lokalno ili kod
IskonDuoCarnet-a...
Pod linuxom...

# ntpdate -v zg1.ntp.carnet.hr
31 Dec 19:17:34 ntpdate[6288]: ntpdate ***@1.2349-o Mon May 20 14:24:36 UTC 2013 (1)
31 Dec 19:17:43 ntpdate[6288]: no server suitable for synchronization found
# ntpdate -q -v zg1.ntp.carnet.hr
31 Dec 19:17:49 ntpdate[6291]: ntpdate ***@1.2349-o Mon May 20 14:24:36 UTC 2013 (1)
server 161.53.123.5, stratum 2, offset 141.344572, delay 0.04510
31 Dec 19:17:55 ntpdate[6291]: step time server 161.53.123.5 offset 141.344572 sec

A, kad je kroz pppoe i onda VPN... onda sve radi ok.
Walter Gottwein
2013-12-31 18:31:04 UTC
Permalink
Post by Nikolaj Lazic
Pod linuxom...
# ntpdate -v zg1.ntp.carnet.hr
31 Dec 19:17:43 ntpdate[6288]: no server suitable for synchronization found
# ntpdate -q -v zg1.ntp.carnet.hr
server 161.53.123.5, stratum 2, offset 141.344572, delay 0.04510
31 Dec 19:17:55 ntpdate[6291]: step time server 161.53.123.5 offset 141.344572 sec
A, kad je kroz pppoe i onda VPN... onda sve radi ok.
Usporedi "traceroute 161.53.123.5" za oba slucaja.
--
Pozdrav,
Walter
Nikolaj Lazic
2013-12-31 18:48:17 UTC
Permalink
Post by Walter Gottwein
Post by Nikolaj Lazic
Pod linuxom...
# ntpdate -v zg1.ntp.carnet.hr
31 Dec 19:17:43 ntpdate[6288]: no server suitable for synchronization found
# ntpdate -q -v zg1.ntp.carnet.hr
server 161.53.123.5, stratum 2, offset 141.344572, delay 0.04510
31 Dec 19:17:55 ntpdate[6291]: step time server 161.53.123.5 offset 141.344572 sec
A, kad je kroz pppoe i onda VPN... onda sve radi ok.
Usporedi "traceroute 161.53.123.5" za oba slucaja.
pppoe DuoCarnet
1 20 ms 21 ms 21 ms CN-SRCE-PPK1-RO.core.carnet.hr [193.198.190.248]
2 21 ms 20 ms 22 ms CN-Srce-03-ES.core.carnet.hr [193.198.228.137]
3 21 ms 20 ms 21 ms CN-Srce-01-ES.core.carnet.hr [193.198.228.9]
4 23 ms 21 ms 20 ms CN-Srce-04-RO.core.carnet.hr [193.198.228.65]
5 22 ms 21 ms 21 ms 193.198.228.197
6 28 ms 23 ms 22 ms zg1.ntp.CARNet.hr [161.53.123.5]

pppoe DuoCarnet + VPNffzg
1 94 ms 29 ms 27 ms vpn.net.ffzg.hr [193.198.213.2]
2 29 ms 31 ms 30 ms 193.198.215.254
3 30 ms 30 ms 31 ms CN-Fsb-01-ES.core.carnet.hr [193.198.232.69]
4 33 ms 30 ms 30 ms CN-ACC-SRCE-02.core.carnet.hr [193.198.229.29]
5 28 ms 30 ms 31 ms 193.198.228.193
6 32 ms 31 ms 33 ms zg1.ntp.CARNet.hr [161.53.123.5]
Valentin Vidic
2014-01-03 12:10:48 UTC
Permalink
Post by Nikolaj Lazic
pppoe DuoCarnet
1 20 ms 21 ms 21 ms CN-SRCE-PPK1-RO.core.carnet.hr [193.198.190.248]
2 21 ms 20 ms 22 ms CN-Srce-03-ES.core.carnet.hr [193.198.228.137]
3 21 ms 20 ms 21 ms CN-Srce-01-ES.core.carnet.hr [193.198.228.9]
4 23 ms 21 ms 20 ms CN-Srce-04-RO.core.carnet.hr [193.198.228.65]
5 22 ms 21 ms 21 ms 193.198.228.197
6 28 ms 23 ms 22 ms zg1.ntp.CARNet.hr [161.53.123.5]
Izgleda da je greskom bio blokiran NTP port. Sad bi trebalo raditi.
--
Valentin
Nikolaj Lazic
2014-01-03 12:24:53 UTC
Permalink
Post by Valentin Vidic
Post by Nikolaj Lazic
pppoe DuoCarnet
1 20 ms 21 ms 21 ms CN-SRCE-PPK1-RO.core.carnet.hr [193.198.190.248]
2 21 ms 20 ms 22 ms CN-Srce-03-ES.core.carnet.hr [193.198.228.137]
3 21 ms 20 ms 21 ms CN-Srce-01-ES.core.carnet.hr [193.198.228.9]
4 23 ms 21 ms 20 ms CN-Srce-04-RO.core.carnet.hr [193.198.228.65]
5 22 ms 21 ms 21 ms 193.198.228.197
6 28 ms 23 ms 22 ms zg1.ntp.CARNet.hr [161.53.123.5]
Izgleda da je greskom bio blokiran NTP port. Sad bi trebalo raditi.
Je, sad radi. Hvala!

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