[ntp:questions] ISP bloked port 123
Bert Gøtterup Petersen
BUP at bang-olufsen.dk
Wed Sep 18 07:55:11 UTC 2013
David,
I understand that a Raspberry-Pi would do the trick, and I am sure that would work for everyone reading this.
However, to our customers and installers this would be rather invasive. They are buying/installing a TV not an IT system..
Our accuracy requirement are not impressive, merely to allow the product to talk to our cloud service (UTC +-5min).
Our assumption is that some ISP block the port to prevent their customers from running a public NTP server.
At the moment our best bet seem to be using 'ntpdate' on a different port at regular intervals. From a SW perspective, this is not nice nor elegant, but it would do the trick...
Cheers
Bert
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