My note

WM5/WM6 internet sharing on USB with EeePC

2008-03-02T01:16:00.002+08:00

I wrote a document about howto use WM5/WM6 internet sharing on USB with EeePC
(in Traditional Chinese)

PDF format.

Virtualbox Host Interface Networking and bridging on Linux

2007-11-13T14:06:00.000+08:00

[root@ns ~]# yum install bridge-utils.i386
[root@ns ~]# vi /etc/sysconfig/network-scripts/ifcfg-br0

DEVICE=br0
TYPE=Bridge
BOOTPROTO=static
BROADCAST=192.168.0.255
IPADDR=192.168.0.36
NETMASK=255.255.255.0
NETWORK=192.168.0.0
ONBOOT=yes

[root@ns ~]# echo "BRIDGE=br0" >> /etc/sysconfig/network-scripts/ifcfg-eth0
[root@ns ~]# /etc/init.d/network restart
[root@ns ~]# VBoxAddIF vbox0 tony br0

Start ssh server in EeePC

2007-11-05T17:33:00.001+08:00

After installing ssh server, I create a file /etc/opt/xandros/xandrosncs/hooks/post-up.d/99ssh,
below is the content:

#!/bin/sh
/etc/init.d/ssh restart

So it will start the ssh server after booting up.
Dotn't forget sudo chmod +x /etc/opt/xandros/xandrosncs/hooks/post-up.d/99ssh.

EeePC 的開關機

2007-10-25T18:37:00.000+08:00

它不是執行常見的 init, 而是跑 fastinit。

所以當你 ssh 進去時會發現 reboot、shutdown 或是 init 6 ... 等指令無法執行。

亂翻之下, 找到可用的指令了：

reboot 改用 /sbin/fastreboot.sh
shutdown 改用 /sbin/fastshutdown.sh

sysv-rc-conf in ubuntu

2007-09-29T18:32:00.000+08:00

For Ubuntu users, if you want to change the daemon sysv init setting in terminal mode, you can use sysv-rc-conf.

sudo apt-get install sysv-rc-conf

Kobo Deluxe, A multi-platform GPL Licensed game

2007-07-26T14:26:00.000+08:00

It supports Windows, OSX, Linux...
If you use Ubuntu, use the command to install:

sudo apt-get install kobodeluxe

a typo in outlook 2002

2007-06-06T16:55:00.001+08:00

想必翻譯的人是用注音輸入法。還是說我要用 OpenOffice.org 才能 "獲釋" 呢？

Linux 下的桌面操作錄影軟體 - XvidCap

2007-05-24T14:49:00.000+08:00

看到 YouTube 上有很多人放了 Beryl 的影片, 本來也想自己錄來玩玩。

第一個試用的軟體是 vnc2swf, 但當我用它連到 Ubuntu 7.04 時, 會讓 Linux 整個當掉。後來又找到 xvidcap, 這個軟體還蠻好用的, 在使用上也很簡單。

以下是我在 Fedora Core 下試錄的結果 (非 beryl), Ubuntu 下使用也沒問題 (可直接裝 .deb 檔)：

http://www.youtube.com/watch?v=tLm_BFZVmE0

[Sendmail] 原來 Sendmail 的 redirect 是這樣用

2007-05-18T15:49:00.000+08:00

在 http://www.sendmail.org/m4/features.html 看到的。

當你在 sendmail.mc 啟用此功能時 (Fedora Core 預設已啟用), 可在 /etc/aliases 裡設定 redirect 的功能。例如, 當有員工離職或換 mail address 時, 若你只在 /etc/aliases 檔替他們設定別名, 其他人還是不知道他新的 mail address, 除非他有回信。這時可在 /etc/aliases 加入下列設定：

tony: tony@new.mail.com.tw.REDIRECT

當有人寄信給 tony 時, 該信會被退回, 並在退信中加入下列訊息：

---- Transcript of session follows -----
551 5.1.1 User has moved; please try 〈tony@new.mail.com.tw〉

這時其他人就知道 tony 的新 mail address 了。

[Zaurus] 在 Zaurus 上使用 Billionton CF 藍牙卡

2007-05-17T12:13:00.000+08:00

在 PIL 接收了一張 Billionton CF 藍牙卡, 本來想說既然 Billionton USB 藍牙都可以用了, CF 應該也沒有問題才對。裝上去之後發現燈會亮, 但是無法正確驅動 (Windows XP 下可正常使用)。網路上找了一下, 發現 oesf 上很多人都有這個問題 (Sharp 原廠系統), 且似乎無解。想說是否要放棄, 直接在 fnac 買確定可用的 Ambicom CF 藍牙卡算了 (現在 CF 藍牙新品很難找)。

但想說 oesf 上 Bluetooth CF cards for the Zaurus 一文明明說有支援, 而且它與 Ambicom 一樣都是使用 CSR 晶片, 沒道理不能用啊！後來繼續在 google 上找資料, 最後到一篇德國人寫的 Sharp Zaurus SL-C750 und Billionton CF-Carte CFBT02-B2, 雖然有點舊, 但試試亦無妨, 沒想到用了它提供的設定檔就可以正確驅動了。步驟如下：

安裝 bluez-zaurus_2.12_2.4.20_arm.ipk 與 qtopia-pannetworkapplet_1.0.1_arm.ipk。
下載 /etc/pcmcia/bluetooth、/etc/rc.d/init.d/bluetooth 與 /etc/bluetooth/uart 這 3 個設定檔, 並覆蓋原來的設定檔。
/etc/rc.d/init.d/bluetooth restart 或重開機即可。

[Zaurus] 讓 Zaurus SL-C1000 透過 WM5 (AKU3) 使用 3G 上網

2007-05-07T23:47:00.000+08:00

I wrote a document about Zaurus 3G connection with WM5 (AKU3), you can download it from here.

[Zaurus] 安裝 SSH Server

2007-05-04T01:08:00.000+08:00

雖然 Zaurus 有鍵盤，但是若你要在終端機上編輯一些設定檔，這麼小的鍵盤還是不方便使用。若你外接 USB 鍵盤，鍵盤問題解決了，但螢幕又顯得太小。所以最好的方式是由 PC 上以 SSH 連進 Zaurus 來修改設定檔。

1.首先安裝 openssh-client_3.6.1p1_arm.ipk 與 openssh-server_3.6.1p1_arm.ipk。

2.開啟終端機設定 zaurus 帳號密碼：

bash-2.05$ passwd
Changing password for zaurus
Enter the new password (minimum of 5, maximum of 8 characters)
Please use a combination of upper and lower case letters and numbers.
Enter new password:
Re-enter new password:
Password changed.

3.設好密碼後如下產生金鑰：

bash-2.05$ ssh-user-keygen.sh

----- Generating User Keys
------- Generating RSA key for SSH v1
Enter passphrase (empty for no passphrase):
Enter same passphrase again: ← 直接按 [Enter] 鍵即可
Be sure to set a password: ssh-keygen -p -f ~/.ssh/identity
------- Generating RSA key for SSH v2
Enter passphrase (empty for no passphrase): ← 直接按 [Enter] 鍵即可
Enter same passphrase again: ← 直接按 [Enter] 鍵即可
Be sure to set a password: ssh-keygen -p -f ~/.ssh/id_rsa
------- Generating DSA key for SSH v2
Enter passphrase (empty for no passphrase): ← 直接按 [Enter] 鍵即可
Enter same passphrase again:
Be sure to set a password: ssh-keygen -p -f ~/.ssh/id_dsa
bash-2.05$ ssh localhost ← 測試連本機
The authenticity of host 'localhost (127.0.0.1)' can't be established.
RSA key fingerprint is 90:00:8a:7c:fd:e1:b9:24:70:b6:c5:51:fd:a3:d0:6e.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'localhost' (RSA) to the list of known hosts.

This system is for the use of authorized users only. Individuals using this computer system are subject to having all of their activities on this system monitored and recorded. Anyone using this system expressly consents to such monitoring and is advised that if such monitoring reveals possible criminal activity, system personel may provide evidence of such monitoring to law enforcement.
zaurus@localhost's password:
$ ← 成功登入

當你的 Zaurus 連上網路之後，你就可以使用如 pietty 的工具由 PC 登入了。

Zaurus 如果有方塊字的問題

2007-05-03T22:14:00.000+08:00

解決方式有很多種，最簡單的方式是刪除 /home/QtPalmtop/lib/fonts 目錄下除了 fontdir、fixed* 與 helvetica* 所有的字型。重開機後瀏覽網頁時，就如上圖不會出現方塊字了。

重拾 Zaurus

2007-04-30T23:51:00.000+08:00

之前買了一台 Zaurus SL-C1000，沒玩幾次就收起來了, 在家放了一年多。上禮拜在 pil 看到有人想買二手的 Zaurus，本來東西都整理好準備要賣了，但後來覺得自己都還沒玩熟，如果就這麼賣掉實在是蠻可惜的，於是就就留下來了。

為了重新研究，又買了一條 USB HOST 線與一張 minisd 卡 (含轉卡)。結果發現 C1000 不支援 1G 以上的 SD 卡，在惡搞的過程中遇到還原失敗導致開機會卡在開機畫面，只好重刷 FLASH。

剛好有一個重新的開始。重刷 FLASH 的步驟如下：

移除 AC 與電池，等待 5 秒。
下載 TRIsoft 提供的英文版 NAND-backup。
解開壓縮檔，置於 SD/CF 的根目錄 (檔案系統需為 FAT 而不是 FAT32)。
按住 D、M 鍵不放，然後插上 AC 電源。如此可進入 Diagnostic Menu。
切到第 3 頁，選 BACKUP RESTORE MENU/NAND FLASH RESTORE。
重新開機後安裝 Mobile01 網友提供的超新手專用中文包 (裝好後須重新開機)。

按 [Fn] + [Shife] + [C] 鍵可擷取畫面 (預設存於記憶卡的 Screen_Files 目錄)，文章開頭的圖即是還原後的基本中文操作環境。

Using Firefox extensions to check what is remote site running

2007-01-03T19:17:00.000+08:00

When I visited an interisting web site, I'd like to know
what was that site running.

I used http://www.netcraft.com/ to get the information before.
It is not convenient if you just want to know what the webserver or OS is.

Now, you can use the extensions of Firefox below to get the information:

Header Monitor & Live HTTP Headers:
https://addons.mozilla.org/firefox/575/
https://addons.mozilla.org/firefox/3829/

After installing these extensions, you can get the information from
Firefox statusbar.

how to change the MAC address of RTL8139

2006-10-25T16:39:00.000+08:00

i bought a second hand mini-itx motherboard.
while installing linux, i found the mac address was ff:ff:ff:ff:ff.

although i can use the command below to change the mac address after
installing linux, but it isn't convenient to me.
(for example, i can't upgrade packages while installing linux)

ifconfig eth0 hw ether 00:11:22:33:44:55

there is a program named Pg8139.exe, people who use 8139 A/B/C chipset
can use it to change the mac address stored in EEPROM of NIC.

you can download from:
http://www.orbitalnet.com.ar/red/RTL8139/PG/

backup & restore HPA of x31

2006-10-23T10:47:00.000+08:00

backup:
FWBACKUP size=640 file=D:\IMAGE

restore:
FWRESTOR file=x:\IMAGE

How to restore the system/boot drive letter in Windows

2006-10-19T15:19:00.000+08:00

for some reason i have to move windows 2003 server to another disk.
after ghost, i found the system drive letter has been changed.
it makes some programs can't start correctly.

below is useful to help you to change system drive letter in windows:

http://support.microsoft.com/default.aspx?scid=kb;en-us;Q223188

How to compile kernel in ubuntu

2006-08-29T16:41:00.000+08:00

it is a good reference:
http://ubuntuforums.org/archive/index.php/t-24853.html

sudo apt-get install build-essential linux-source-2.6 libncurses5-dev kernel-package

cd /usr/src
tar xvjf linux-source*
cd linux-source
cp /boot/config-2.6.10.5-386 .config
sudo make menuconfig

cofigure the heck out of your kernel

sudo make-kpkg --revision-1 --append-to-version=mykerne1 kernel_image kernel_headers

cd ..
sudo dpkg -i linux-image-2.6.10*.deb

Diagnostic tool for HITACHI harddisk

2006-08-29T16:37:00.000+08:00

http://www.hitachigst.com/hdd/support/download.htm

You can download a bootable cd image.

Windows in ATM machine

2005-06-28T11:06:00.000+08:00

This is very famous BSOD.

Planex GW-US54Mini USB wireless Linux howto

2005-06-28T11:05:00.000+08:00

http://ywwang.myweb.hinet.net/gw-us54mini.pdf

Support usb-cdrom in dos (IBM x31)

2005-06-28T11:04:00.000+08:00

http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=
lenovo&lndocid=MIGR-4TFT8J

1.download usb_cd.sys
2.read usb_cd.txt to make a dos boot disk

Using The IBM b/g Wireless Mini PCI Adapter in Fedora Core 3

2005-03-25T13:10:00.000+08:00

Using The IBM b/g Wireless Mini PCI Adapter in Fedora Core 3

By default, not all the IBM x31 notebooks are Centrino architecture.

Centrino architecture includes:Pentium M processor, Intel's 855 chipset,
and Intel's Pro/Wireless 2100 wireless network card.

Unfortunately, my x31 2672-IV6 is not Centrino architecture.
It includes all the components except Intel's Pro/Wireless 2100.

The wireless card in my x31 is IBM b/g Wireless Mini PCI Adapter, which
vendor is Atheros (http://www.atheros.com/).

IBM b/g Wireless Mini PCI Adapter is not recognized by Fedora Core 3.

The good news is that there is a open source project for Atheros.
(http://sourceforge.net/projects/madwifi/)

It does not release any files now, but you can retrieve the source code via CVS.

There are 4 steps to make the Mini PCI Adapter works in Fedora Core 3:

A.download & compile kernel source
B.download MADWIFI source code via CVS
C.compile & install
D.setup wireless card

****** detail ******
A.download & compile kernel source

MADWIF needs kernel source to compile the modules and Fedora Core 3 does not
include default.

B.download MADWIFI source code via CVS

cvs -z3 -d:pserver:anonymous@cvs.sourceforge.net:/cvsroot/madwifi co madwifi

use the command above to get MADwifi from CVS.

C.compile & install

in madwifi directory:

make;make install

The modules will be installed in /lib/modules/2.6.10/net (by my case)

D.setup wireless card

1.modprobe ath_pci
2.ifconfig ath0 up (yes, ath0)
3.iwlist ath0 scan (scan your AP)
4./etc/sysconfig/network-scripts/ifcfg-ath0:

DEVICE=ath0
ONBOOT=yes
BOOTPROTO=dhcp

5.dhclient ath0 (get ip from AP)

If everything is ok, /etc/modprobe.conf:

alias ath0 ath_pci

Then the Mini PCI Adapter will work after booting.

Re: printing in text mode

2005-03-25T13:09:00.000+08:00

> a2ps -B -1 --border=no xxx.txt
> it will print a no border, one page per sheet document.

try this:
a2ps --left-title="" -4 README -o madwifi.ps

Use GRUB to boot FreeBSD

2005-03-25T13:08:00.001+08:00

Use GRUB to boot FreeBSD：

method 1, in grub command prompt：

grub> root (hd0,a)
grub> kernel /boot/loader
grub> boot

method 2, in menu.lst：

/boot/grub/menu.lst：
...
title FreeBSD 5.3
root (hd0,a)
kernel /boot/loader

Apple Boot Key Combos

2005-03-25T13:08:00.000+08:00

http://www.jacsoft.co.nz/Tech_Notes/Mac_Keys.shtml

Bypass startup drive and boot from external (or CD).... CMD-OPT-SHIFT-DELETE
Boot from CD (Most late model Apples) ................. C
Boot from a specific SCSI ID #.(#=SCSI ID number)...... CMD-OPT-SHIFT-DELETE-#
Zap PRAM .............................................. CMD-OPT-P-R
Disable Extensions .................................... SHIFT
Rebuild Desktop ....................................... CMD-OPT
Close finder windows.(hold just before finder starts).. OPT
Boot with Virtual Memory off........................... CMD
Trigger extension manager at boot-up................... SPACE
Force Quadra av machines to use TV as a monitor........ CMD-OPT-T-V
Boot from ROM (Mac Classic only)....................... CMD-OPT-X-O
Force PowerBooks to reset the screen................... R
Force an AV monitor to be recognized as one............ CMD-OPT-A-V
Eject Boot Floppy...................................... Hold Down Mouse Button
Select volume to start from............................ OPT
Start in Firewire drive mode........................... T
Startup in OSX if OS9 and OXS in boot partition........ X or CMD-X
Hold down until the 2nd chime, will boot into 9?....... CMD-OPT
OSX: Watch the status of the system load............... CMD-V
OSX: Enter single-user mode (shell-level mode)......... CMD-S

Bootable DOS NTFS reader

2005-03-25T13:07:00.000+08:00

DOS NTFS boot disk to access NTFS partitions in Windows XP 2000 or NT
http://www.ntfs.com/boot-disk.htm

Sony handycam advertisement in Discovery

2005-03-25T13:06:00.000+08:00

I have posted it on sayya bbs :)

http://www.ecat.sony.com.tw/images/tvcf/pc350_0412.wmv

The song in the advertisement:
http://public.thehazelnut.com/Mongolian_song.mp3

A mongolia singer who lives in Germany now.This is her website:
http://www.urna.com/

This is the ninth song:
http://www.urna.com/cd/talnutag.html

The slogan in the advertisement:

It takes 3 seconds to fall in love;
but 3 decades to get along.

3 centuries to preserve a tradition;
but 3 minutes to embrace another.

3 colours to paint the world;
and 3 million pixels to capture it all.

[FreeBSD] chinese in more/less (ssh/telnet)

2005-03-25T13:05:00.000+08:00

in order to remind, too.
when you ssh/telnet in Freebsd, use:

more -r xxx.txt
less -r xxx.txt

to read file that include chinese.

[FreeBSD] chinese in ls (ssh/telnet)

2005-03-25T13:04:00.000+08:00

in order to remind.
/etc/bashrc:
alias ls="gnuls --color=auto --show-control-chars"

printing in text mode

2005-03-25T13:00:00.000+08:00

a2ps -B -1 --border=no xxx.txt

it will print a no border, one page per sheet document.

Using wep in Linux (wireless)

2005-03-25T12:59:00.000+08:00

ascii key:
iwconfig eth0 essid default key s:12345
--------
key

[FreeBSD] Set the default boot selection to slice

2005-03-25T12:58:00.000+08:00

you can use "boot0cfg" command to set the default boot selection to slice.

for example:
boot0cfg -s 2 ad0

ad0s2 will be the default selected entry.

Using Linux to build your own Soft-AP (Access Point)

2005-03-25T12:57:00.000+08:00

Yuo have to choice a wireless card with Intersil Prism chipset.

3Com 3CRWE154G72 (pcmcia)
&
PCI GW-DS54G (pci)
are good choice, because i have tested these two cards, and they do work.

1.mkdir -p /usr/lib/hotplug/firmware
2.cd /usr/lib/hotplug/firmware
3.mount /mnt/cdrom (your wireless card driver)
4.cp /mnt/cdrom/Driver/3CRWE154G72/3C154G72.arm isl3890
(cp /mnt/cdrom/Drivers/XP&2K/WLANDCB.arm isl3890) for GW-DS54G
5.chkconfig pcmcia on (for 3CRWE154G72)
6. /etc/rc.d/rc.local:

modprobe prism54 # only GW-DS54G needed
iwconfig eth1 essid Linux-3Com
iwconfig eth1 channel 7
iwconfig eth1 mode Master
ifconfig eth1 10.1.1.1 netmask 255.255.255.0 broadcast 10.1.1.255 up

7.setup your NAT & DHCP server to privide your clients to get ip
8.reboot
9.test from your wireless client

this is a snapshot of my PDA:
http://www.wretch.cc/album/show.php?i=ywwang&b=3&f=1096222587.jpg&p=1

3Com 802.11g pcmcia on Fedora core 2 success

2005-03-25T12:56:00.000+08:00

OS: Fedora Core 2

3Com 3CRWE154G72:
http://www.3com.com/products/en_US/detail.jsp?tab=features&
pathtype=purchase&sku=3CRWE154G72

bought it in Nova/Taipei NT:1600

i also bought Bufallo WLI-PCM-L11GP AirStation PCI Adapter Card:
http://www.buffalotech.com/products/product-detail.php?productid=
68&categoryid=9

because there is no pcmcia slot on my notebook (iBook), i have to
use this card on my pc in order to use 3Com pcmcia wireless card.
Bufallo WLI-PCM-L11GP works perfect on FC2.
NT:900

Reference document:
http://mysite.verizon.net/winterz/doc/prism54_fc2.txt

install steps:
1. mkdir -p /usr/lib/hotplug/firmware

2. cd /usr/lib/hotplug/firmware

3. mount your driver CD of 3Com

4. copy 3Com firmware in CD to /usr/lib/hotplug/firmware and
rename to isl3890.
for example:
[root@localhost firmware]# ls /usr/lib/hotplug/firmware
isl3890

5. plug 3Com 3CRWE154G72 into pcmcia slot

6. check if FC2 detect your 3Com card:
[root@localhost root]# iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

eth1 NOT READY! ESSID:off/any
Mode:Managed Channel:6 Access Point: 00:00:00:00:00:00
Tx-Power=31 dBm Sensitivity=0/200
Retry min limit:0 RTS thr=0 B Fragment thr=0 B
Encryption key:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

sit0 no wireless extensions.

7. bring up eth1:
[root@localhost root]# ifconfig eth1 up

8. scan your AP:
[root@localhost root]# iwlist eth1 scanning
eth1 Scan completed :
Cell 01 - Address: 00:E0:98:4C:05:6E
ESSID:"wyw"
Mode:Master
Encryption key:off
Frequency:2.462GHz
Quality:102/0 Signal level:-46 dBm Noise level:-148 dBm

9. create a new file named "ifcfg-eth1" in /etc/sysconfig/network-scripts:
DEVICE=eth1
BOOTPROTO=dhcp
ONBOOT=yes
MODE=Managed
ESSID=wyw

10. use "dhclient" command to get ip from AP:
[root@localhost root]# dhclient eth1
Internet Software Consortium DHCP Client V3.0.1rc12
Copyright 1995-2002 Internet Software Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

sit0: unknown hardware address type 776
sit0: unknown hardware address type 776
Listening on LPF/eth1/00:0d:54:a1:8f:b5
Sending on LPF/eth1/00:0d:54:a1:8f:b5
Sending on Socket/fallback
DHCPREQUEST on eth1 to 255.255.255.255 port 67
DHCPACK from 192.168.1.254
SIOCADDRT: File exists
bound to 192.168.1.88 -- renewal in 121862 seconds.

11. now your 3Com 3CWRE154G72 pcmcia wireless card works perfectly:
[root@localhost root]# ifconfig eth1
eth1 Link encap:Ethernet HWaddr 00:0D:54:A1:8F:B5
inet addr:192.168.1.88 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20d:54ff:fea1:8fb5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:20 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2480 (2.4 Kb) TX bytes:720 (720.0 b)
Interrupt:11

[root@localhost root]# iwconfig eth1
eth1 IEEE 802.11b/g ESSID:"wyw"
Mode:Managed Channel:11 Access Point: 00:E0:98:4C:05:6E
Bit Rate:11Mb/s Tx-Power=31 dBm Sensitivity=20/200
Retry min limit:8 RTS thr:2347 B Fragment thr:2346 B
Encryption key:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

****************
there is also a good web site & forum that talk about prism chipset:
http://www.prism54.org/
http://www.prism54.org/forums/

[Doc] Linux Serial Console HOWTO

2005-03-25T12:54:00.000+08:00

Reference:
http://www.vanemery.com/Linux/Serial/serial-console.html

1. /etc/inittab:
s0:2345:respawn:/sbin/agetty -L -f /etc/issueserial 9600 ttyS0 vt100

2. /etc/issueserial (option):
Connected on \l at \b bps
\U
Kernel \r on an \m

3. # init q (option):
forces the init process to re-read the configuration file.

4. /etc/securetty (option):
ttyS0

5. grub.conf:
kernel /boot/vmlinuz-2.6.5-1.358 ro root=LABEL=/ console=ttyS0,9600

6. # chkconfig kudzu off (option, Red Hat based Linux distributions needed)

7. in Windows Hyper Terminal:
Turn flow control "off"

8. reboot

Screen capture:
http://www.wretch.cc/album/show.php?i=ywwang&b=3&f=1093848703.jpg&p=0

[Doc] Installing DB2 Version 8.1.6 for Linux

2005-03-25T12:53:00.000+08:00

http://www-106.ibm.com/developerworks/linux/library/l-ss4-db2/?ca=dgr-lnxw07DB24Lin

WLAN Adapter Chipset Directory

2005-03-25T12:52:00.000+08:00

http://www.linux-wlan.org/docs/wlan_adapters.html.gz

Use MD5 Digest authentication instead of using Basic Authentication (Apache)

2005-03-25T12:49:00.000+08:00

1. httpd.conf:

AllowOverride All

2. create user account:
$ htdigest -c .htpasswd "MD5 Digest authentication test" ywwang
^^^^^^^^^^^^^^^^^^^^^^
A
Adding password for ywwang in realm MD5 Digest authentication test.
New password:
Re-type new password:
$ more .htpasswd
ywwang:MD5 Digest authentication test:223148e89875e6ff0035242a7be3abcd

3. create .htaccess file:
AuthDigestFile /home/ywwang/public_html/private/.htpasswd
AuthType Digest
AuthName "MD5 Digest authentication test"
^^^^^^^^^^^^^^^^^^^^^^
B
AuthDigestDomain /~ywwang/private/ http://192.168.0.139/~ywwang/private/
AuthDigestNonceLifetime 300
require valid-user

NOTE: Part A should be equal to part B.

Login screen:
http://www.wretch.cc/album/show.php?i=ywwang&b=2&f=1091433774.jpg

Chipsets and Wireless cards supported by the Linux prism54 driver

2005-03-25T12:47:00.000+08:00

http://prism54.org/supported_cards.php

Wireless LAN resources for Linux (from hp.com)

2005-03-25T12:43:00.000+08:00

http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/

AT76C5XXx-based Wireless Devices

2005-03-25T12:24:00.000+08:00

http://atmelwlandriver.sourceforge.net/news.html
---
Home of the OpenSource Linux Driver for Atmel AT76C5XXx-based Wireless Devices

Lemel USB wireless network card drivers (Mandrake)

2005-03-25T12:23:00.000+08:00

[root@ns root]# lsmod | more
Module Size Used by
at76c505-rfmd2958 40772 0
at76c503 70464 1 at76c505-rfmd2958
usbdfu 5156 1 at76c503

XDMCP client (X Window)

2005-03-25T12:22:00.000+08:00

X :1 -query 192.168.0.139
X :2 -query 192.168.0.135

Ctrl + Alt + F7 to switch to the original X Window

Using GRUB via a serial line

2005-03-25T12:21:00.000+08:00

grub> serial --unit=0 --speed=9600
grub> terminal serial

In windows you have to select software (Xon/Xoff) flow control.

Extract RPM package

2005-03-25T12:20:00.000+08:00

mkdir tmp
cp rpmfile tmp
cd tmp
rpm2cpio rpmfile | cpio -idum

ex:
rpm2cpio sendmail-8.12.6-2.i686.rpm | cpio -idum

[bind] allow specific IP to zone transfer.

2005-03-25T12:16:00.000+08:00

in named.conf:

zone "somecompany.com.tw" in {
type master;
file "named.somecompany.com.tw";
allow-update { none; };
allow-transfer {
11.22.33.44;
55.66.77.88;
};
};

Prevention and Recovery of XP Dual Boot Problems

2005-03-25T12:15:00.000+08:00

http://www.redhat.com/archives/fedora-devel-list/2004-May/msg00908.html

/etc/yaboot.conf

2005-03-25T12:14:00.000+08:00

boot=/dev/hda9
device=hd:
partition=12
root=/dev/hda12
timeout=30
install=/usr/lib/yaboot/yaboot
magicboot=/usr/lib/yaboot/ofboot
defaultos=macosx

image=/boot/kernel-2.4.24-wyw
label=Linux
read-only

macosx=/dev/hda10

fix the broken yaboot

2005-03-25T12:13:00.000+08:00

1.boot from Gentoo PPC live cd
2.in boot prompt:
hd:11,/boot/vmlinux root=/dev/hda11
3.after boot into previous installed Gentoo:
mkofboot -v

mkisofs

2005-03-25T12:12:00.000+08:00

mkisofs -l -R -J -V SuSE91 -v -o ./suse-9.1-ftp_install.iso /mnt/hdd1/suse/

-l Allow full 31 character filenames.
-R Generate SUSP and RR records using the Rock Ridge protocol to
further describe the files on the iso9660 filesystem.
-J Generate Joliet directory records in addition to regular iso9660
file names.
-V volid
Specifies the volume ID (volume name or label) to be written
into the master block.
-v Verbose execution.
-o filename
is the name of the file to which the iso9660 filesystem image
should be written.

XDMCP client (cygwin)

2005-03-25T12:10:00.001+08:00

XWin.exe -query 192.168.0.135
XWin.exe :1 -query 192.168.0.139
then you don't need other commerical software like XWin32 any more

enable XDMCP in Fedora Core 2

2005-03-25T12:10:00.000+08:00

a.accept 177/udp in firewall
b./etc/rc.d/init.d/xfs：
daemon xfs -droppriv -daemon -port 7100
c./etc/X11/fs/config：
#no-listen = tcp # comment
d./etc/X11/xdm/xdm-config：
! DisplayManager.requestPort: 0 # comment
e./etc/X11/xdm/Xaccess：
* # any host can get a login window (uncomment)
f./etc/X11/gdm/gdm.conf：
RemoteGreeter=/usr/bin/gdmgreeter
Enable=true

GNU softwares for OSX

2005-03-25T12:09:00.000+08:00

http://www.osxgnu.org/

Most Mac OS X users prefer to use GUI tools to make Installations of software.
By providing GNU software ported or built for the Apple Installer we are
providing a needed service for the OS X community. Our Goal is to produce
Tools for the OS X Package Installer/Maker and to port all Free/Open source
software to the OS X Installer system as is possible.
?>

Working kernel .config for my machine?

2005-03-25T12:08:00.000+08:00

from:
http://forums.gentoo.org/viewtopic.php?t=168763

---------

If you get a 2004.* livecd to boot, the configuration of the kernel that
booted your machine can be found in /proc/config.gz

An example: you booted your G5 with G5-SMP, installing a kernel is as simple
as:

emerge gentoo-dev-sources (installs a -2.6.5 kernel)
cp /proc/config.gc /usr/src/linux
cd /usr/src/linux
gunzip config.gz
cp ./config ./.config
make all modules_install

or

zcat /proc/config.gz > /usr/src/linux/.config

excute your own scripts after all the other init scripts in Gentoo PPC

2005-03-25T12:07:00.000+08:00

there is no /etc/rc.d/rc.local in Gentoo,
you have to put your own scripts in /etc/conf.d/local.start

emulate the right and middle buttons in Gentoo PPC

2005-03-25T12:06:00.000+08:00

echo "1" > /proc/sys/dev/mac_hid/mouse_button_emulation
echo "87" > /proc/sys/dev/mac_hid/mouse_button2_keycode
echo "88" > /proc/sys/dev/mac_hid/mouse_button3_keycode

F10 & F11

A project that collects configuration files for Gentoo PPC

2005-03-25T12:04:00.000+08:00

i found in Gentoo forum :
http://ppcconfdb.sourceforge.net/

XF86Config in Gentoo PPC

2005-03-25T11:57:00.000+08:00

i forget to keep /etc/X11/XF86Config in Yellowdog Linux.
after installed Gento PPC on iBook, X did not work.
one of the good reasons to use MAC is: there are only several hardware
specification in Apple's products.

so, you can steal other's configuration from internet :)

================
Section "ServerLayout"
Identifier "XFree86 Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
RgbPath "/usr/X11R6/lib/X11/rgb"
ModulePath "/usr/X11R6/lib/modules"
FontPath "/usr/X11R6/lib/X11/fonts/truetype"
FontPath "/usr/X11R6/lib/X11/fonts/misc/"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo/"
FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
FontPath "/usr/X11R6/lib/X11/fonts/CID/"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/lfp-fix/"
FontPath "/usr/X11R6/lib/X11/fonts/lfp-var/"
FontPath "/usr/X11R6/lib/X11/fonts/sharefont/"
FontPath "/usr/X11R6/lib/X11/fonts/freefont/"
FontPath "/usr/X11R6/lib/X11/fonts/ttfs/"
FontPath "/usr/share/AbiSuite/fonts/"
EndSection

Section "Module"
Load "extmod"
Load "xie"
Load "pex5"
Load "freetype"
Load "int10"
#Load "dri"
Load "dbe"
Load "record"
Load "xtrap"
Load "glx"
Load "speedo"
Load "type1"
Load "bitmap" #new
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Option "CustomKeycodes"
Option "XkbModel" "Macintosh"
Option "XkbLayout" "us"
Option "XkbRules" "xfree"
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "ZAxisMapping" "4 5"
Option "Device" "/dev/input/mice"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
UseModes "Modes0"
HorizSync 30-70
VertRefresh 50-160
EndSection

Section "Device"
### Available Driver options are:-
### Values: : integer, : float, : "True"/"False",
### : "String", : " Hz/kHz/MHz"
### [arg]: arg optional
#Option "NoAccel" # []
#Option "SWcursor" # []
#Option "Dac6Bit" # []
#Option "Dac8Bit" # []
#Option "ForcePCIMode" # []
#Option "CPPIOMode" # []
#Option "CPusecTimeout" #
#Option "AGPMode" #
#Option "AGPSize" #
#Option "RingSize" #
#Option "BufferSize" #
#Option "EnableDepthMoves" # []
#Option "CrtScreen" # []
#Option "PanelSize" # []
Option "UseFBDev" # []
Identifier "Card0"
Option "UseFBDev"
Driver "ati"
VendorName "ATI"
BoardName "Radeon Mobility M6 LY"
BusID "PCI:0:16:0"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1024x768" "640x480" "800x600"
EndSubSection
SubSection "Display"
Depth 4
Modes "1024x768" "640x480" "800x600"
EndSubSection
SubSection "Display"
Depth 8
Modes "1024x768" "640x480" "800x600"
EndSubSection
SubSection "Display"
Depth 15
Modes "1024x768" "640x480" "800x600"
EndSubSection
SubSection "Display"
Depth 16
Modes "1024x768" "640x480" "800x600"
EndSubSection
SubSection "Display"
Depth 24
Modes "1024x768" "800x600" "640x480"
EndSubSection
EndSection

#Section "DRI"
#Mode 0666
#EndSection

Section "Modes"
Identifier "Modes0"
# mode generated by Xeasyconf
Modeline "1024x768" 65.003 1024 1048 1184 1344 768 771 777 806
-HSync -VSync
EndSection

the modules that Gentoo Live CD used.

2005-03-25T11:56:00.001+08:00
in iBook
livecd root # lsmod
Module Size Used by
airport 7680 0
orinoco 53548 1 airport
hermes 14912 2 airport,orinoco
ipv6 282604 12
nls_utf8 2272 0
nls_iso8859_15 4864 0
nls_iso8859_1 4256 1
isofs 40408 1
binfmt_misc 12968 0
ide_scsi 18596 0
sr_mod 21088 0
zlib_inflate 23616 1 isofs
compressloop 8992 1
cryptoloop 5408 0
loop 20840 4 compressloop,cryptoloop

the NIC drivers of iBook in Yellowdog Linux

2005-03-25T11:56:00.000+08:00
lsmod::

on board NIC chip:
sungem 28144 1
sungem_phy 7600 0 [sungem]

wireless:
airport 4132 1
orinoco 40032 0 [airport]

NIC drivesr of ibook in Yellowdog linux

2005-03-25T11:55:00.000+08:00
lsmod::

on board NIC chip:
sungem 28144 1
sungem_phy 7600 0 [sungem]

wireless:
airport 4132 1
orinoco 40032 0 [airport]

UPS on Linux

2005-03-25T11:53:00.000+08:00
1.http://power.sourceforge.net
2.detectups /dev/ttyS0
3.chkconfig powerd on

Audit system resource usage

2005-03-25T11:51:00.000+08:00
1./etc/rc.d/init.d/psacct start
2.
[roo@ns /]# sa -m
405 13.38re 0.43cp 0avio 1239k
root 352 12.89re 0.35cp 0avio 1233k
mailman 9 0.19re 0.08cp 0avio 2089k
wyw 42 0.15re 0.00cp 0avio 1087k
smmsp 1 0.01re 0.00cp 0avio 1687k
sshd 1 0.13re 0.00cp 0avio 1488k

how to get your dmi & BIOS informations in Linux ?

2005-03-25T11:42:00.000+08:00
you can use "dmidecode" to show this informations

homepage of dmidecode:
http://www.nongnu.org/dmidecode/

what is dmi (Desktop Management Interface):
http://www.dmtf.org/standards/dmi

the Fedora Core project not release the OpenSSH security hole yet

2004-09-13T16:42:00.000+08:00
in fact, i really don't want to mess up my system.
but untill now, i don't find RPM-based security fix from Fedora Core project.
SecurityFocus.com indicated this security hole in 2003/09/16 :

Versions older than 3.7.1 are vulnerable to a flaw in the buffer management
functions which might allow an attacker to execute arbitrary commands on this
host.

in the alternative way, you can download tarball from openssh.org to solve
this problem.

./configure --prefix=/opt
make
make install

modify /etc/rc.d/init.d/sshd :
KEYGEN=/opt/bin/ssh-keygen
SSHD=/opt/sbin/sshd
RSA1_KEY=/opt/etc/ssh_host_key
RSA_KEY=/opt/etc/ssh_host_rsa_key
DSA_KEY=/opt/etc/ssh_host_dsa_key

final, restart your SSHD

Install nessus

2004-09-13T16:40:00.000+08:00
1. lynx -source http://install.nessus.org | sh
2. /usr/local/sbin/nessus-mkcert
3. /usr/local/sbin/nessus-adduser
4. nessus-update-plugins
5. /usr/local/sbin/nessusd -D
6. nessus &

XP desktop environment

2004-09-13T16:39:00.000+08:00
this is a interesting project.
they try to recrate a Windows XP interface on Linux.

http://www.xpde.com/
&
screenshots:
http://www.xpde.com/shots.php

script for the damn RPM dependencies

2004-09-13T16:24:00.000+08:00
#!/bin/bash
for i in $(ls ./);
do
echo $i >> rpm-content.txt;
echo "====================" >> rpm-content.txt;
rpm -qlp $i >> rpm-content.txt;
echo " " >> rpm-content.txt;
echo " " >> rpm-content.txt;
done

###########
PIII 500, 128MB RAM
Fedora Core 1
--------------
real 6m17.237s
user 2m54.410s
sys 0m45.850s

save iptables config in /etc/sysconfig/iptables

2004-09-13T16:23:00.000+08:00
/sbin/service iptables save

more details in /etc/sysconfig

2004-09-13T16:22:00.000+08:00
/usr/share/doc/initscripts-verson-number/sysconfig.txt

font in MCC (Mandrake Linux 10 Community)

2004-09-13T16:21:00.000+08:00
/etc/X11/xdm/Xservers:
:0 local /usr/X11R6/bin/X -deferglyphs 16 -dpi 120

NetBSD gateway

2004-09-13T16:17:00.000+08:00
1. /etc/mygate

or

2. /etc/rc.conf
host="xxx.yyy.zzz"
defaultroute="1.2.3.4"
domain name="yyy.zzz"