On -10.01.-28163 20:59, Antonio Marcheselli wrote: > I've got some servers which have stopped synchronising on the configured > NTP server. [...] I thought the NTP server had gone down, but > then found that in another country I could still sync to the same NTP > server. > [...] Any chance some ISPs are blocking some NTP servers or maybe > port 123 on such servers??
GeoIP blocking (google that) today is an established technology to protect your publicly-reachable networks, especially if the services offered aren't meant or even illegal (copyrights) to be offered to the entire planet. Chances are that access to the NTP servers are a collateral of a central firewall having had such a feature activated - not that that'ld help you any ... Regards, J. Bern -- *NEU* - NEC IT-Infrastruktur-Produkte im <http://www.linworks-shop.de/>: Server--Storage--Virtualisierung--Management SW--Passion for Performance Jochen Bern, Systemingenieur --- LINworks GmbH <http://www.LINworks.de/> Postfach 100121, 64201 Darmstadt | Robert-Koch-Str. 9, 64331 Weiterstadt PGP (1024D/4096g) FP = D18B 41B1 16C0 11BA 7F8C DCF7 E1D5 FAF4 444E 1C27 Tel. +49 6151 9067-231, Zentr. -0, Fax -299 - Amtsg. Darmstadt HRB 85202 Unternehmenssitz Weiterstadt, Geschäftsführer Metin Dogan, Oliver Michel _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions