Japan OCN FTTH network, DNS server settings…


crosspost from http://rextang.net/blogs/work/

I had my broadband connection at Tokyo about 2 months ago. it’s a VDSL link with 100Mbps speed FTTH. it’s really fast considering the dual 100M speed.

but actually the web browsing responses is not as perfect as imagine. most of the time most of the links will just be broken. I am started to wondering if there is anything wrong with my DNS settings.

looking into the manual and OCN website, there were nothing talking about DNS settings. by default setting, when one got OCN B-Flets router, just use router’s local ip address as DNS server and gateway address. but I did find that the router’s DNS server function is not so stable (or I might set something wrong!?). I did need to setup the router to open several filter ports also port mappings, and define my own DHCP segments, means I didn’t use the default settings by the router. As the router DNS is functioning not so well until now, I decided to have a check about all the settings.

First of all, I need to know where the official OCN Network’s primary and secondary DNS servers are. unfortunately there is no data on OCN website. so back to the root, using  “nslookup” to find out:

Default Server:

> set q=ns
> ocn.ad.jp
Server:  pns.ocn.ad.jp

ocn.ad.jp       nameserver = pns.ocn.ad.jp
ocn.ad.jp       nameserver = ns-os001.ocn.ad.jp
pns.ocn.ad.jp   internet address =
ns-os001.ocn.ad.jp      internet address =

I supposed “pns.ocn.ad.jp (” is primary DNS server and “ns-os001.ocn.ad.jp (” is the secondary DNS server.

In router’s LAN settings there are places for input LAN DNS server addresses. it was left blank and I decide to fill in those 2 DNS servers.

For my own home server’s DNS service (Windows 2003 Server R2), I decided to add those ISP’s dns servers to forwarder settings in order to get more faster responses.

by setting those and reset my router, I do experienced a faster and stable responses on web browsing experiences. therefore, FYI if you are in Tokyo and also using OCN B-Flets FTTH broadband network.

Technorati Tags: japan , tokyo , broadband , ftth , vdsl , OCN , b-flets 


Japan TechEd 2006 Yokohama Day 4 (The last day)…


crosspost from http://rextang.net/blogs/work/

The last day of TechEd 2006 here at Yokohama, Japan, rainy day…

In the morning there were sessions about RFID, C++/CLI Programming that’s releated to developers; also others mainly releated to IT System Management like SQL Server 2005 Disaster Recovery, SMS2003, etc.

In the afternoon, managed to attend session “T1-401 Software Factory Implementation”. actually this topic was talked at last year’s TechEd USA at Florida (my posts here and here), and this time is a nice chance to review the concept and tools that’s ready to support the process. Some DSL Tools are ready, and some still under development or in beta progress. The integration of Software Factory process into Visual Studio Team System is a good point to combine all the tools / process in a united development platform. This should take some time to read and understand all the definitions of process and what are they really mean, but after mastered them, should be a very powerful process to make software engineering to another fun and productive level!

In the rest of afternoon I choosed to stay at MVP lounge trying to know more MVPs here at Japan. There is a very big and popular private community site called mixi.jp (invitation based) here at Japan, MSMVPs here also got their own private community on mixi , sharing information and keep in touch with each others.


As a conclusion of TechEd 2006 here at Yokohama, Japan, some of the topics that should be important at Microsoft world next year:

Although I do think that LINQ should be another important topic in this year’s TechEd, didn’t see any session here at Japan talking about it (Also PowerShell !! ).

One of the other good things to attend TechEd here is that it gave me a chance to know new friends here at Japan. I would like to thank MVP lead here at Microsoft Japan again to invite me to this event and also glad to know all the MVPs here at Japan, thanks and see you all in next local event! 🙂

Today’s pic I took is here.

TechEd 2006 Yokohama, Japan: Day 1 , Day 2 , Day 3

Technorati Tags: microsoft , teched , japan