Wednesday, February 28, 2007

Perpanjangan beasiswa

Dear MEXT scholarship students:

Congratulations! You have been granted a scholarship extension. Please
read the information below and follow the procedure.

1. Inquire at the International Center or any other appropriate office
in March, concerning your extension.
2. Submit "Pledge" (attached) and "Certificate of Acceptance " (issued
by the university; only students who passed the entrance exam) by the
following dates.
・Those who stay in the same course and who enter a higher course in
April: March 15th.
・Those who proceed to a higher program in September: August 15th.

wish me luck for doctor entrance exam !

If you have any question, please feel free to ask us.

My brain

Finally, I got my brain activities figures during my friend's experiment on October 2006.
red means high activity, blue means negative activity, and uV means micro volt.

Friday, February 23, 2007

Apricot 2007

Apricot is Asia Pacific Regional Internet Conference on Operational Technologies event. This annual event now being held in Bali, Indonesia. You can read the program of Apricot 2007 on It's the first time for Indonesia become Apricot host. Apricot is important event for not only for network engineer in ISPs or companies but also for Internet community in Asia-Pacific. It's become place to study new Internet technology and new Internet operation directly from the expert. Many tutorial and workshop sessions in Apricot, such as IPv6 (Internet Protocol version 6), DNS, Internet routing, VoIP (Voice over IP) and Network security. Everyone can choose the tutorial and workshop on their interest.
From my experience when I was on Apricot 2004 at Kuala Lumpur Malaysia, this event is very usefull, beside getting new knowledge you can also get contact persons from other regions. So you can expand your business and skill to other regions.

Thursday, February 22, 2007

Minix 3

I read about Minix 3 on ;login February 2007 volume 32 number 1.
As you know it wrote by Prof Andrew Tanenbaum with his colleagues and his students.
The title: Roadmap to a failure-resilent operating system.
Here's I rewrite the abstract:
In recent years, dependability and security have become prime concerns for computer users. nervertheless, commodity operating systems, such as Windows and Linux, fail to deliver a dependable and secure computing platform. The lack of proper fault isolation in the monolithic kernel of commodity systems means that a local failure can easily spread and corrupt other components. A single bug, say, a buffer overrun in a network driver, can overwrite crucial data structures, causing a subsequent, but unrelated, action to trigger a fatal exception. Recovery is usually not possible except by rebooting the computer.

In this article Prof Andrew Tanenbaum, describe about Minix 3 operating system development and tentative roadmap for future work.
I rewrire The author's statement to achieve fault resilent:
The key principles we used to make Minix 3 failure resilent are fault isolation, defect detection, and run time recovery. Fault isolation is required to prevent problems from spreading and limit the damage bugs can do. When a bug is properly caged it becomes easier to pinpoint the defect, and rocovery may be possible. In the following we briefly discuess how we realized each principles in Minix 3.

for complete article you can read ;login magazine from usenix. :-)

Wednesday, February 21, 2007

IETF meeting

yes finally:
Congratulations! I am writing to let you know that you have been selected to receive the ISOC Fellowship to the IETF. We would like to invite you to attend the Chicago IETF meeting which will be held from the 22nd to the 27th of July 2007.

tinggal cari uang tambahan buat ongkos taxi, bikin visa amerika, makan, heheheh oh ya cek jadwal apakah selama IETF meeting tsb ada bentrok jadwal dng ujian masuk doktor.
wish me luck !

Tuesday, February 20, 2007


after reading this paper:
Brice Augustin, Xavier Cuvellier, Benjamin Orgogozo, Fabien Viger, Timur Friedman, Matthieu Latapy, Clémence Magnien and Renata Teixeira, "Avoiding Traceroute Anomalies with Paris Traceroute", Internet Measurement Conference, October 2006.
You can download the paper:

I tried it and submitted FreeBSD's ports.
how to install paris-traceroute on FreeBSD:
1.update your ports-tree /usr/ports/net/paris-traceroute
3.make install clean

example output:
freebsd# paris-traceroute
traceroute [( -> (], protocol udp, algo hopbyhop, duration 0 s
1 ( 3.422 ms 2.734 ms 2.767 ms
2 ( 0.873 ms 0.770 ms 0.829 ms
3 ( 2.074 ms 2.103 ms 2.022 ms
4 ( 8.150 ms 11.280 ms 33.093 ms
5 ( 2.157 ms 2.127 ms 2.126 ms


Indonesia's IPv6 view from AS4717 (AI3)

Oprekan ini diilhami setelah saya membaca paper:
Kenjiro Cho, Matthew Luckie and Bradley Huffaker.
Identifying IPv6 Network Problems in the Dual-Stack World.
SIGCOMM'04 Network Troubleshooting Workshop, Portland, Oregon, September 2004.

Monday, February 19, 2007

My linux-firefox crash !

My linux-firefox installed from FreeBSD's ports always crash and give me segmentation fault signal 11.
So I deinstall linux-firefox and install native FreeBSD firefox also installed from FreeBSD's ports.
Now my firefox stable :-))

Testing recursive name server for IPv6 and EDNS0

ayo silahkan dicoba :-)

Saturday, February 17, 2007

Daftar buku (1)

Internet Measurement: Infrastructure, Traffic and Applications
by: Mark Crovella and Balachander Krishnamurthy.
ISBN: 978-0-470-01461-5

Tuesday, February 06, 2007

Nanog presentation about earthquake impact to Network

I found nice presentation from Renesys, Inc. about earthquake impact to network.