A question has arisen in another group-- What happens if, when ntp starts up, the remoter server is unavailable ( eg no DNS or no connection)? This is highly likely to be the case for a laptop for example, where the connection with the local network is only brought up by the user after a while, or on wakeup from a power outage when the net may be unstable or the router be out when ntp comes up.
If a server disappears in a running ntp, ntp keeps trying, backing off on the poll interval after a while. But what does ntp do if on the first try to a server, there is no response, or if the dns is down. Does it forever scrub that server? (that seems to be what happnes-- if so why?) or does it do the same thing as if the server disappears after a while (keep trying with increasing poll intervals)? I notice that there is a keyword dynamic which is not yet implimented but which seems to imply the second option. Also what happens to ntpd if it has no servers whatsoever, not even a local one? Does it keep running, doing nothing, or does it exit? _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
