DNS problem?

[Alexandre Bougakov]

Hello,

Wednesday, December 13, 2000, 6:33:42 AM, you wrote:

YT> I have noticed many useful Russian WEB pages are not reachable from
YT> Japan, including http://pubs.carnegie.ru
YT> I wonder if you know a solution (one way I can think of is finding
YT> out the numerical address and use it).

Maybe the problem is not in your DNS, but in the distance between Japan
and European part of Russia?

The main connection point, which is used by many ISPs in Moscow (and
most russian websites are located here), called 'M9 Point' is
connected to the nearest gateways in Finland and Germany - and there
are only few connections to the eastern part of Russia. It may happen
that your IP packets go to NY, then to Berlin, and then to Moscow
- but not directly through Khabarovsk or Vladivostok.

But wait a minute! I have just made a 'tracert tsuji.yt.cache.waseda.ac.jp'
from DOS window and look what it gave to me:

> c:\> tracert tsuji.yt.cache.waseda.ac.jp
>
> Трассировка маршрута к tsuji.yt.cache.waseda.ac.jp [133.9.103.42]
> с максимальным числом переходов 30:
>
>   1   <10 мс   <10 мс   <10 мс  ns.nispi.ru [192.168.1.1]
>   2   <10 мс   <10 мс   <10 мс  195.230.73.65
>   3   <10 мс   <10 мс   <10 мс  TCNET-GDF.tcnet.ru [195.230.65.89]
>   4   <10 мс   <10 мс   <10 мс  CORE3011-200-00.tcnet.ru [212.69.112.1]
>   5   <10 мс   <10 мс   <10 мс  CORE2011-622-5051.tcnet.ru [212.69.112.242]
>   6   <10 мс   <10 мс    10 мс  core1-bvi1.Moscow.RosTelecom.ru [195.161.4.153]
>   7   <10 мс   <10 мс    10 мс  bb-fa8-0-0.Moscow.rt.ru [195.161.0.168]
>   8   100 мс   100 мс   110 мс  aa-ser4-3.TRS-20.Rostelecom.ru [195.161.2.206]
>   9   250 мс   150 мс   161 мс  KDD-unspecified.Khabarovsk.Rostelecom.ru [195.161.4.14]
>  10   330 мс   331 мс   290 мс  gsr-ote2.kddnet.ad.jp [203.181.96.149]
>  11   160 мс   191 мс   160 мс  cm-ote4.kddnet.ad.jp [203.181.96.178]
>  12   210 мс   181 мс   160 мс  210.132.92.134
>  13   220 мс   290 мс   301 мс  202.241.2.41
>  14   180 мс   180 мс   211 мс  toumon.cfi.waseda.ac.jp [133.9.0.217]
>  15   200 мс   190 мс   211 мс  c751324c.cfi.waseda.ac.jp [133.9.0.242]
>  16     *        *        *     Превышен интервал ожидания для запроса.
>  17   210 мс   230 мс   211 мс  tsuji.yt.cache.waseda.ac.jp [133.9.103.42]
>
> Трассировка завершена.

There are normal delays when the packets cross Russian territory
through Rostelecom network and the problems begin when they reach Japan.
Look at the step 13 - the delay has doubled at this point!

Maybe the problem is not in your DNS, but in the network overload?
Call your ISP's technical support - maybe they will fix the problem.

And if you still blame your DNS - why not to install local one? Of
course, you will need a little bit more memory for your computer, but
it should help. You can also include couple of additional DNS
addresses to the list in your system's network settings. Use ones from
Cityline, Comstar, Rostelecom, Russia-On-Line etc. - if your DNS will
fail to resolve Russian hostnames to IP addresses, your system will
try using DNS servers you added.

Good luck!



Cordially,

Alexandre Bougakov <mailto:bougakov at mailru.com>
Monitoring.ru Group (http://www.monitoring.ru)
Sociological faculty of the Higher School of Economics
(http://www.hse.ru/fakultet/sociology/default.html)
My PGP key ID is 0x97F20C99, Key Fingerprint is C83C 5998 F43A BEB7
70DF B8FC CC5E 960E 97F2 0C99 (PGP version is 6.0.2i)

-------------------------------------------------------------------------
 Use your web browser to search the archives, control your subscription
  options, and more.  Visit and bookmark the SEELANGS Web Interface at:
                http://members.home.net/lists/seelangs/
-------------------------------------------------------------------------