Rider Space

情報加工四步驟 by大前研一

Rider — Wed, 02 Mar 2011 16:22:36 +0000

Step1：初步瀏覽RSS訂閱的新聞，剪貼下有用的部分透過瀏覽與整理一天500則的資訊，掌握世界發生了哪些事情，並汲取出當中有用的部分。

Step2：將原始新聞做成投影片，進一步摘要重點內容藉由製作投影片檔案，進行資訊的二度確認、修正與加工。

Step3：透過口頭解說，讓自己更熟習情報內容能對別人解說一件事，表示自己一定對那件事有明確而肯定的了解，透過口頭解說的訓練，讓情報被自身吸收。

Step4：與人討論情報內容，獲取更多想法透過和別人討論，可以補足一些沒有想到思考角度，讓自身對事情理解更圓滿。

In a word: 先將資料前處理後變成有用的資訊,並進一步的成為自己的 KM. 最後,發揮最大綜效!

Reference: http://www.managertoday.com.tw/?mod=locality&func=view&id=2715

遇見 NLP 大師 – 林君翰老師

Rider — Tue, 04 Jan 2011 09:55:23 +0000

邁向成功:

知道自己不要什麼
選擇自己真正想要的
去除所有負面想法,不要讓自己綁手綁腳 – NLP & 催眠
用心感覺願望實現後的願望與滿足
相信你的直覺,才能放手讓目標自行落實

智慧錦囊:

用你的過去跟別人的未來作交換
用別人的過去跟自己的未來作交換

Open Cirrus – Open Cloud Computing Research Testbed

Rider — Thu, 09 Dec 2010 08:47:03 +0000

Open Cirrus SW components:

Layer4: Application Service – Hadoop
Layer3: Virtual Machine Allocation – Tashi / Eucalyptus
Layer2: Cluster Storage DFS – HDFS
Layer1: Physical Machine Allocation – Zoni

Detail components:

Tashi

- VM instantiation service exp: MPI jobs
- Seamless Physical / Virtual migration
- Location-aware co-scheduling of compute, storage, and power

Zoni

- Used to allocate nodes for special purpose exp:Power management projects
- Allocate sets of physical co-located nodes, isolated inside VLANs – Layer 2 Switch

HDFS

- High-performance, parallel access
- High data reliability through replication

Maui/Torque – Job submission service
Hi-Spade: A hierarchy-savvy approach to algorithm design and systems for these emerging memory hierarchies
Hypervisor: qemu / kvm

Reference:
Open Cirrus: https://opencirrus.org/
Hi-Spade: http://www.pittsburgh.intel-research.net/projects/hi-spade/

Debian Backports setup HowTo

Rider — Tue, 02 Nov 2010 09:24:24 +0000

Sometimes we may meet the software outdated or dependency problem, so it’s necessary to update some of your stable packages to solve such problems.
The first, you have to add the backport source.list into /etc/apt/source.list, and than update your your package repositories.

$ sudo vim /etc/apt/sources.list

# Add your Debian Lenny Backports repository
deb http://backports.debian.org/debian-backports lenny-backports main contrib non-free

$ sudo apt-get update
$ sudo apt-get -t lenny-backports install debian-backports-keyring
—————————————————————–
Install the backports package for your dist:
$ sudo apt-get -t lenny-backports install xxx

Reference:
http://wiki.debian.org/Backports

Ubuntu 10.04 runlevel modification

Rider — Tue, 12 Oct 2010 08:10:20 +0000

The original runlevel configuration file has been moved from "/etc/inittab" to "/etc/init/rc-sysinit.conf" ,and the default normal graphic mode is also changed to "env DEFAULT_RUNLEVEL=2" — Ubuntu 10.04 after…..

Just set your new runlevel here:
PATH: /etc/init/rc-sysinit.conf
/*************************
env RUNLEVEL=
*************************/

Running Xen-4.0.1-rc6 with kernel 2.6.32.16 on Ubuntu 10.04 x86_64 installationNote

Rider — Wed, 04 Aug 2010 01:40:20 +0000

【Install Required Packages】

$ sudo apt-get install bcc bin86 gawk bridge-utils iproute libcurl3 libcurl4-openssl-dev bzip2 module-init-tools transfig tgif texinfo texlive-latex-base texlive-latex-recommended texlive-fonts-extra texlive-fonts-recommended pciutils-dev mercurial build-essential make gcc libc6-dev zlib1g-dev python python-dev python-twisted libncurses5-dev patch libvncserver-dev libsdl-dev libjpeg62-dev iasl libbz2-dev e2fslibs-dev git-core uuid-dev ocaml libx11-dev

###　Necessary package for 64bit version of Debian/Ubuntu
$ sudo apt-get install gcc-multilib

【Xen Paravirt_Ops Linux kernel – 2.6.32.16 installation】

$ cd /usr/src
$ sudo git clone git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git linux-2.6-xen
$ cd ./linux-2.6-xen
$ sudo git reset –hard
$ sudo git checkout -b xen/stable-2.6.32.x origin/xen/stable-2.6.32.x
$ sudo git pull //Update to the latest kernel revision//
$ sudo make menuconfig //See the attached kernel config file for details//
$ sudo make -j 4
$ sudo make modules -j 4
$ sudo make modules_install install
$ sudo depmod -a
$ sudo mkinitramfs -o /boot/initrd.img-2.6.32.16 2.6.32.16
$ sudo vim /boot/grub/grub.cfg

menuentry 'Xen-4.x, with Linux 2.6.32.16' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,1)'
multiboot (hd0,1)/boot/xen-4.0.gz dummy=dummy
module  /boot/vmlinuz-2.6.32.16 dummy=dummy root=UUID=XXX ro nomodeset
module  /boot/initrd.img-2.6.32.16
}

【Xen-4.x Hypersior installation】

$ cd /usr/src
$ sudo hg clone http://xenbits.xen.org/xen-4.0-testing.hg
$ cd ./xen-4.0-testing.hg
$ sudo make xen -j 4
$ sudo make tools -j 4
$ sudo make stubdom -j 4
$ sudo make install-xen
$ sudo make install-tools PYTHON_PREFIX_ARG=
$ sudo make install-stubdom
$ sudo update-rc.d xend defaults 20 21
$ sudo update-rc.d xendomains defaults 21 20
$ sudo reboot

【Up-to-date the latest changes of Xen-4.x Hypersior】

$ cd xen-4.0-testing.hg
$ make clean
$ hg pull
$ hg update

Reference:
http://wiki.xen.org/xenwiki/Xen4.0
http://wiki.xen.org/xenwiki/XenParavirtOps

PHP-GTK installationNote on Ubuntu 10.04

Rider — Fri, 16 Jul 2010 09:52:10 +0000

Thanks to the author for such useful information. Now, i can finally run the GUI of this test suite up.

$ sudo apt-get install build-essential subversion php5-cli php5-dev libglib2.0-dev libgtk2.0-dev
$ svn co http://svn.php.net/repository/pecl/cairo/trunk pecl-cairo
$ cd pecl-cairo
~/pecl-cairo $ phpize
~/pecl-cairo $ ./configure
~/pecl-cairo $ make -j 2
~/pecl-cairo $ make test
~/pecl-cairo $ sudo make install
~/pecl-cairo $ svn co http://svn.php.net/repository/gtk/php-gtk/trunk php-gtk
~/pecl-cairo $ cd php-gtk
~/pecl-cairo/php-gtk $ cat /usr/share/aclocal/ltoptions.m4 /usr/share/aclocal/ltsugar.m4 /usr/share/aclocal/lt~obsolete.m4 >> ./aclocal.m4
~/pecl-cairo/php-gtk $ ./buildconf
~/pecl-cairo/php-gtk $ ./configure
~/pecl-cairo/php-gtk $ make
~/pecl-cairo/php-gtk $ sudo make install
~/pecl-cairo/php-gtk $ sudo rm /etc/php5/cli/conf.d
~/pecl-cairo/php-gtk $ sudo mkdir /etc/php5/cli/conf.d
~/pecl-cairo/php-gtk $ sudo cp /etc/php5/conf.d/*.ini /etc/php5/cli/conf.d/
~/pecl-cairo/php-gtk $ echo "extension=/usr/lib/php5/20090626+lfs/php_gtk2.so" | sudo tee /etc/php5/cli/conf.d/php_gtk2.ini
~/pecl-cairo/php-gtk $ echo "extension=/usr/lib/php5/20090626+lfs/cairo.so" | sudo tee /etc/php5/cli/conf.d/cairo.ini
~/pecl-cairo/php-gtk $ php -m | grep php-gtk

Reference:
http://www.techbeast.net/2010/06/29/installing-php5-gtk-in-ubuntu-10-04-x64/

ICMP Block trickNote

Rider — Thu, 15 Jul 2010 18:16:18 +0000

一般我都是在 iptables 裡面多設定一各 ICMP drop all 來避免被攻擊.
發現一各小技巧可以直接修改系統參數來 block ping reply.

暫時性:

root@Rider:~# echo "1" > /proc/sys/net/ipv4/icmp_echo_ignore_all
(關閉 ping 回應)

root@Rider:~# echo "0" > /proc/sys/net/ipv4/icmp_echo_ignore_all
(開啟 ping 回應)

永久性:

root@Rider:~# echo "net.ipv4.icmp_echo_ignore_all = 1" >> /etc/sysctl.conf
(關閉 ping 回應)

root@Rider:~# sysctl -p (使系統變數生效)

Tricks for Network on Linux

Rider — Thu, 27 May 2010 08:01:04 +0000

Jazz 介紹了幾各不錯用的網路小工具:

檢查網路線有無接上?
- cat /sys/class/net/eth0/carrier ( 0: Off , 1=On)
取得網卡相關資訊:
- ethtool -i eth0
- driver: e1000
  
  version: 7.3.20-k2-NAPI
  
  firmware-version: 1.1-0
  
  bus-info: 0000:00:19.0
  
  driver: e1000version: 7.3.20-k2-NAPIfirmware-version: 1.1-0bus-info: 0000:00:19.0
判斷網卡編號,用亮燈來辨別 ( ethx ? )
- ethtool -p eth0 (檢查網卡eth0燈有無閃爍)
Cisco Discovery Protocol Reporter: 可以檢查機器是透過Switch哪個 Port 或接在哪個 Port 上.
- sudo cdpr

Ganglia installation notes

Rider — Thu, 01 Apr 2010 05:42:30 +0000

Install on Debian lenny 5.0.4
- Ganglia Web Frontend version 3.1.7
- Ganglia Web Backend (gmetad) version 2.5.7
- RRDTool version 1.3.1
- TemplatePower version 3.0.1

$ sudo apt-get install apache2 php5 php5-gd ganglia-monitor gmetad libganglia1-dev libganglia1 libapr1 libapr1-dev librrds-perl librrd2-dev libconfuse0 libconfuse-dev libpcre3 libpcre3-dev
$ wget http://downloads.sourceforge.net/ganglia/ganglia-3.1.7.tar.gz?modtime=1204128965&big_mirror=0
$ tar zxvf ganglia-3.1.7.tar.gz
$ cd ./ganglia-3.1.7
$ GANGLIA_ACK_SYSCONFDIR=1 ./configure –prefix=/opt/ganglia –enable-gexec –with-gmetad
$ make -j 4
$ sudo make install
$ sudo mkdir /var/www/ganglia
$ sudo cp -r web/* /var/www/ganglia
$ sudo /etc/init.d/apache2 restart

Ganglia host node configuration
- sudo vim /etc/gmetad.conf
  - data_source "Your_NAME" 10 IP_ADDRESS:8649
  - gridname "Your_NAME"
  - trusted_hosts IP_ADDRESS1 IP_ADDRESS2
  - interactive_port 8652
  - rrd_rootdir "/var/lib/ganglia/rrds"
- sudo /etc/init.d/gmetad restart

Ganglia client nodes configuration
- sudo vim /etc/gmond.conf
  - name "Your_NAME"
  - owner "Your_Organization"
  - trusted_hosts SERVER_IP_ADDRESS1 SERVER_IP_ADDRESS2
- sudo /etc/init.d/ganglia-monitor restart