[ntp:questions] http://www.ntp.org/ => a blank page?
Richard B. Gilbert
rgilbert88 at comcast.net
Tue Mar 10 13:39:54 UTC 2009
David J Taylor wrote:
> Martin Burnicki wrote:
>> David J Taylor wrote:
>>> Richard B. Gilbert wrote:
>>>> I've been using Comcast for five or six years now without a problem!
>>> There have been a few problems with my ISP, hence I moved to a 3rd
>> We did't ever have any problems using the DNS servers of our ISPs.
> At the time, mine was using servers in the USA (from the UK) and via
> non-reciprocal paths. Even now, it seems to be using servers from
> abroad, and has no local reference clock.... I don't think that anyone
> "cared" for it.
>>> I used to have my own DNS server. You do /not/ have to get the rest
>>> of the world from Comcast. DNS is /not/ like NTP, and you talk
>>> directly to the root servers to start with, which then pass you down
>>> gradually to the correct server for the domain (e.g. for
>>> microsoft.com) and in future you query the relevant domain server
>>> directly. All seems to work very smoothly and automatically.
>> IMHO DNS is not like NTP in the sense that is just *starts* sending
>> queries for domains which have not yet been resolved to the root DNS
>> servers and then are redirected/go on down to the authoritative DNS
>> for that domain, whereas NTP would stuck with the top level servers
>> if they have been configured.
> Agreed. When I first answered I had missed that Richard probably knows
> more about DNS than me!
I used to be an "expert" but time has taken its toll; I have forgotten a
lot and things have changed in the last ten years. Eleven years ago, my
then employer's "upstream provider" asked us to stop using their DNS
server. Fair enough; we had something like 2,000 student users! They
sent and received a lot of mail; it was a heavy load!
I set up a local DNS server. At first it was simply a "caching" server;
ask once and keep the answer on hand. Then I built the database to make
the server "authoritative" for the site, got our upstream provider to
host a copy. . . . It was highly educational!
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