"Richard B. Gilbert" <[EMAIL PROTECTED]> writes: >Evandro Menezes wrote: >> On Sep 12, 8:31 am, Unruh <[EMAIL PROTECTED]> wrote: >>> Sounds great. So, let me say I have pool.ntp.org as a server. when my >>> system comes up (a desktop) the network interface is there, but the dns >>> server is still dead, and the gateway is still dead. Ie, no address for >>> pool can be gotten from dns. Does the system keep trying or does it give up >>> on that server? >> >> Similarly, if a connection is dropped, will NTP query the DNS server >> about the IP of a specified server again or will it binds to an IP >> address and never give it up? >>
It does not query the dns server each time it sends out a packet. It remembers. By connection I think he means tat association of name-IP and sending out and receiving back packets. So by "connection dropped" I believe he means "send out a query packet and receive no reply". >There is NO "connection"!! UDP, which is what NTP uses is a >connectionless protocol. If a client receives no response to a query, >it is supposed to wait and try again, double the wait time and try >again, etc. I believe that a conforming implementation is supposed keep >doubling the retry time until it reaches 1024 seconds. _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
