SilverTip257 wrote:
On Wed, Jan 15, 2014 at 5:53 AM, John Doe jdmls@yahoo.com wrote:
From: John R Pierce pierce@hogranch.com
How to set up timing if NTP was block by ISP?
your ISP doesn't have their own timeserver you can access?? I've never heard of an ISP blocking ntp protocol, unless they are blocking /everything/ but web and email via proxy, whereupon they aren't really an internet service provider, they are just a web-n-mail service provider.
Maybe related to the (recent?) DDOS using ntp servers...?
Sounds likely. ACLs like that are bad practice, but some people can get overzealous. Hopefully they're only temporary until the hosts running NTP have been further secured.
http://blog.cloudflare.com/understanding-and-mitigating-ntp-based-ddos-attac...
It is probably a good idea to call and complain to your ISP if this is happening to you.
As others mentioned, the OP might be able to sync time off their ISP's NTP servers (if provided). Or go with a GPS time source as John Pierce
suggested.
Missed the beginning of this thread. You did try to point to nist.gov? http://tf.nist.gov/tf-cgi/servers.cgi
mark