David J Taylor wrote: > Danny Mayer wrote: >> David J Taylor wrote: >>> Danny Mayer wrote: >>> Danny, >>> >>> The problem I am referring to is a DNS issue, not related to NTP, >>> and it doesn't look to have been fixed yet: >>> >>> ------------------------------------------------------ >>> C:\>nslookup 0.uk.pool.ntp.org >>> Server: ns1-edi.blueyonder.net >>> Address: 62.31.64.39 >>> >>> *** ns1-edi.blueyonder.net can't find 0.uk.pool.ntp.org: Non-existent >>> domain >>> >>> C:\>nslookup 1.uk.pool.ntp.org >>> Server: ns1-edi.blueyonder.net >>> Address: 62.31.64.39 >>> >>> *** ns1-edi.blueyonder.net can't find 1.uk.pool.ntp.org: Non-existent >>> domain >>> >>> C:\> >>> ------------------------------------------------------ >>> >>> Something about the DNS records causes "normal" DNS servers to >>> reject the updates - sorry but I don't know the exact details. >>> >>> Cheers, >>> David >> I don't think you understand how DNS operates. If you are getting >> NXDOMAIN for this address, your DNS was unsuccessful in getting the >> record and caches that fact for a certain length of time defined in >> the TTL field of the SOA record of the domain. Once the time has >> expired it will retry the query when asked for that address. You >> might also want to turn off the "DNS Client" on your system as this >> has similar bad effects. >> >> Danny > > Thanks, Danny. > > You are indeed correct that I have less understanding of precisely how DNS > operates than how NTP operates. However, as I don't see this problem with > other NTP servers, just those from the pool, so I am forced to conclude > that it might be the way the pool operates compared to a more conventional > static DNS. > > The pool operators are aware of this problem, I believe, and are > addressing it. > > Cheers, > David
I would be able to supply expert advice to the pool operators if they need it though I don't understand what issue it is that they are trying to address. Danny _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
