IPVS hosting on the Internet

[Joseph Mack NA3T]

On Fri, 11 May 2007, Dr. Volker Jaenisch wrote:

> It would be a violation of the DNS if a ISP caches the 
> domain entries longer as the TTL.

I haven't looked for 10yrs or so, but back then DNS servers 
would not honour a TTL less than some reasonably long time 
(a day?) so their cache would be useful.

> Have you tested this? Our two big ISPs in germany respect the TTL set by the 
> domain provider.
>
> mira2:~# dig @195.50.140.250 inqbus.de
>
>
> ;; ANSWER SECTION:
> inqbus.de.              300     IN      A       193.239.28.142
>
> mira2:~# dig @195.50.140.250 inqbus.de
>
> ; <<>> DiG 9.2.4 <<>> @195.50.140.250 inqbus.de
>
> ;; ANSWER SECTION:
> inqbus.de.              297     IN      A       193.239.28.142

I take it that the situation is different nowadays. What's 
the point of having DNS servers if every query requires a 
hit to the root servers?

Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
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