BSD/Linux Tutorial Zone

One major thing that happened yesterday! That was Ubuntu has announced Ubuntu 9.10 Karmic and contained Ubuntu, Kubuntu, Ubuntu Studio, Mythbuntu. Many different editions are also included in this release, and could be found on official website such as Netbook Remix, Desktop Edition, Server Edition and so on...
Today, I tried to install Ubuntu 9.10 in Xen Virtual Machine of openSUSE 11.1. This result makes me satisfied, but a problem of Firefox still existed that Firefox always suddenly shutdown automatically. I've never seen this problem in my openSUSE. If you are also interested in using Ubuntu, you can download it right now from the below official link address.

Desktop:
http://ftp.heanet.ie/pub/ubuntu-releases/9.10/ubuntu-9.10-desktop-i386.iso-> i386
http://ftp.heanet.ie/pub/ubuntu-releases/9.10/ubuntu-9.10-desktop-amd64.iso-> AMD64

Server:
http://ftp.heanet.ie/pub/ubuntu-releases/9.10/ubuntu-9.10-server-i386.iso-> i386
http://ftp.heanet.ie/pub/ubuntu-releases/9.10/ubuntu-9.10-server-amd64.iso-> AMD64

Netbook Remix:
http://ftp.heanet.ie/pub/ubuntu-releases/9.10/ubuntu-9.10-netbook-remix-i386.iso -> only for i386

You can see the default theme of Ubuntu 9.10 as below:

I encountered a problem of Stardict in openSUSE 11.1 recently. It always stayed in "loading" status when I executed this application as below snapshot. That was a strange situation and have never appeared before. However, this problem appeared in my system after the KDE upgraded to 4.3. Although I tried to downgrade KDE, but still useless.
This is my first time to encounter this problem and this problem keep loading now and anyone here know what's going on about that? If there is no solution to fix it, I have to wait openSUSE 11.2 official version to upgrade or reinstall my system.

Windows 7 has been released and joined the war of software market recently. So Linux accelerate preparations for an official version of the next release in the market. Many distributions are also do that such as openSUSE, Ubuntu. Both of them will be released the new version soon in the next few days. Especially, Ubuntu 9.10 may be able to appear this week. The official version of the FreeBSD does not have many activities like Windows. In addition to the FreeBSD 8.0 planned to be released on schedule, but also to see RC2 version of FreeBSD today. That's mean the official version will soon emerge.
The RC2 version has been amended to improve some of the previous version bugs. If you are interested in it, you can go to the following link address to check release announcement or download it.

Release Announcement:
http://lists.freebsd.org/pipermail/freebsd-stable/2009-October/052544.html

FTP Mirror Sites:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/mirrors-ftp.html

Today, I attempted to browse my site from the mobile, but it seems unable to browse. So I tried to search about Wordpress plugin from Google. After a period of searching I found this plug-in Wordpress mobile edition. It can be very simple to install in your Wordpress website, and no additional settings. If you want to try it, you can follow my simple steps as below:

• Step 1. Search this plugin and then download it from the below Wordpress plugin page:

http://wordpress.org/extend/plugins/wordpress-mobile-edition/

• Step 2. Upload this compress file into wp-content/plugins directory of server. Actually, you can also login your server via ssh tunnel and then using wget command to get it as below

# cd /usr/local/www/apache22/data/your blog root directory/wp-content/plugins
# wget http://downloads.wordpress.org/plugin/wordpress-mobile-edition.3.1.zip

• Step 3. Extract it in plugins folder and then move carrington-mobile-1.0.2 directory to themes folder

# unzip wordpress-mobile-edition.3.1.zip
# mv -f carrington-mobile-1.0.2 /usr/local/www/apache22/data/your blog root directory/wp-content/themes

• Step 4. Click the 'Activate' link for WordPress Mobile Edition on your Plugins page (in the WordPress admin interface)

PS: If you seen this message "WP Mobile is incorrectly installed" in admin page, you have to check that move carrington-mobile-1.0.2 directory to themes folder

Microsoft's Windows operating system has added UAC function and hidden the administrator account since Windows Vista first came out. However, many people still want to use the administrator account to login to their computer. If you want to activate this account, you need to turn off UAC and then refer to the following steps to enable Administrator account.

Step 1. Please input cmd command and then press Enter from Start menu




Step 2. Please input net user administrator /active:yes command to active it



Step 3. Now, please click Control Panel



Step 4. And then click Add or remove user accounts to verify whether administrator has been enabled



Step 5. Congratulations! You can use the Administrator account to login Windows 7 system if you can see the Administrator account as follow

We both know that all of the current Linux distribution can automatically mount all of the external hard drive such as usb flash drives, CDROM, usb disk and so on.... However, another bsd systems ware still necessary to manually mount all of the device no matter FreeBSD or openBSD, but in fact there is a way to let you mount external devices automatically when you insert a flash drive in your FreeBSD system. It is only need to modify a few files to achieve this goal. The emphasis is amd package. Amd is a automounter program that will make your external disk or CDROM to be mounted automatically well, but how to use it? You can refer to the following steps that will show you detailed information:

• 1. Create your directory for CDROM or USB drive as follows

# mkdir /mnt/cdrom
# mkdir /mnt/disk

• 2. Adding follow information in your /etc/rc.conf file

# vi /etc/rc.conf

portmap_enable=YES
portmap_flags=”-h 127.0.0.1″
amd_enable=YES
amd_flags=”-a /.amd_mnt -c 10 -w 2 -l syslog /host /etc/amd.map”

• 3. Modify fstab file to be created mount point for your devices

# vi /etc/fstab

/dev/acd0 /mnt/cdrom cd9660 ro,noauto 0 0
/dev/da0s1 /mnt/disk msdosfs rw,noauto 0 0 (If you ware using ntfs type, please changed msdosfs to ntfs-3g)

• 4. Adding follow information in amd.map file

# vi /etc/amd.map

localhost type:=auto;fs:=${map};pref:=${key}/

localhost/cdrom type:=program;fs:=/mnt/cdrom;
mount:=”/sbin/mount mount /mnt/cdrom”;
unmount:=”/sbin/umount umount /mnt/cdrom”

localhost/flash type:=program;fs:=/mnt/disk;
mount:=”/sbin/mount mount /mnt/disk”;
unmount:=”/sbin/umount umount /mnt/disk”

• 5. Create .amd_mnt folder and soft link to link your cdrom and usb devices directories

# mkdir /.amd_mnt
# ln -s /host/localhost/cdrom /cdrom
# ln -s /host/localhost/disk /disk

I think that will be a great event in the history of Microsoft to release Windows 7 this month. Microsoft has no further chance of failure since released Windows Vista last time! Actually, I have to say something about Windows Vista that is really difficult to use no matter on the stability and performance both worse than Windows XP. Windows 7 is a nice operation system for me when I was using Windows 7 MSDN version until now. If you want to know more about Windows 7 information, you can refer to the following link address...

Detail Information From 3Clive

Today, my friend ask me to capture some pictures about internet connection steps for Fedora. He was using Windows XP and connect to Internet through pppoe connection. However, his Windows system isn't stable right now, so want to try Fedora 12 beta. I has summarized steps to connect to internet through on Fedora 12 beta. If you also don't know how to connect to internet on Fedora, please refer to following steps:

• Step1: Using ifconfig command to check network environmen whether your network device has been enabled as below

# ifconfig

• Step2: Click Edition Connections... of network manager icon in the upper right corner

• Step3: Choose DSL table and then click Add button

• Step4: You had to fill your account information before clicked Apply button as following. This information should be provided by your telecom vendor.

• Step5: Please enter your personal password in this step

• Step6: You will see the DSL Connection 1 as below picture. Now, please click it to connect to internet

• Step7: The network manager icon will display as following When you connect to internet

• Step8: Please enter your personal password that has been created in step5

• Step9: Congratulations, you have already connect to the internet when you see the following picture.

PS: You can also use ifconfig command to check ppp0 device
# ifconfig

Due to the Fedora 12 beta has been released, so I installed it as guest OS on xen virtual machine today. However, when I installed it at the last package a strange problem appears that the installation screen will be stuck and didn't continue to next step. You can see the snapshot as below:



I do not know what caused the installation can not continue, but this screen has been stopped for 30 minutes. Finally, I have to shutdown this virtual machine through Xen VM mamanger. Now, I can only expect that the official version can be installed on the Xen Virtual Machine normally and then try it again.

Fedora has just released a new beta version of Fedora 12. This also means the final official version will be released soon. So this information is very important for Linux user. Especially, so many operation systems will release final version such as Ubuntu, openSUSE, Windows 7...
Fedora 12 beta has improved a lot of features, and fixed a lot of bugs. If you want to try it, please check the release announcement first. Here you can find the release announcement as follow:

Release announcement:
https://www.redhat.com/archives/fedora-announce-list/2009-October/msg00006.html
Download link:
http://mirrors.fedoraproject.org/publiclist/Fedora/12-Beta/

PS: "PulseAudio enhancements" is my forcus in this version. After reading release announcement I could see that that "Fedora 12 beta will be able to integrate with the Rygel UPnP media server. It means you can stream audio directly from your system to any UPnP / DLNA client, such as a Playstation 3".

Another distro MOPSLinux 7.0 alpha 2.7 has been released that is based on Slackware distribution. It's a Russian vendor so that you will see the russian language in their website. If you don't understand russian language, please see the following translated contents which translated by Google Translate.

Release Announcement:
We are happy to announce the next release of development version - MOPSLinux 7.0 alpha 2.7!
This assembly is expected to be the last before the release of alpha 3. We have upgraded a number of key components of the system, while we tried to retain maximum stability to testing are as comfortable as possible. Gradually we are beginning the transition to stabilization.
New features:
1. Linux kernel 2.6.31.4 + BFS 0.304. Kernel modesetting for Intel and Radeon.
2. Latest versions of the components of X. Org, including xorg-server 1.7.0.901, mesa 7.6, xf86-video-intel 2.9.0, radeonhd 1.3.1. Support Multipointer.
3. Last glib, gtk, cairo, pango
4. Drivers for nvidia graphics cards are now installed from packages.
5. mparted: new editor of the partition table on the basis of libparted and ncurses
6. mopsnet: a new network manager
7. preload: preload programs in memory, based on the collection of statistics on the user behavior
8. Multiple fixes in mpkg
9. new xfce from git
10. transition to grub2 with graphical menu
Furthermore, it was updated a number of other packages. Now we are being bleeding edge, while we tried to maintain maximum stability and did not break. We will be very glad if you try to use this issue MOPSLinux and tell us about their feelings and any problems!

You can download the image here:
ISO: http://mopspackages.ru/mirror/iso/MOPSLinux-7.0-alpha2.7.iso (1.6 GB)
Torrent: http://mopspackages.ru/torrents/MOPSLinux-7.0-alpha2.7.torrent

Mini-image without packages:
ISO: http://mopspackages.ru/mirror/iso/MOPSLinux-7.0-alpha2.7-netinst.iso (46 MB)

You can also see the original annoucement as below link address:
http://www.mopslinux.org/index.php?option=com_content&view=article&id=79

Sometimes I have to use the software xvidcap to record the steps for each action. This way will be more convenient for users to understand when I am teaching them. We all know that you can find many of this type of software in Windows, but there are only a small number of software have this capability in Linux. xvidcap is one of these softwares. Now, I want to share how to use it as follow:

Step1: Please make sure this software has been installed.
# xvidcap
bash: xvidcap: command not found

Step2: Install it via zypper command for opensuse
# zypper in xvidcap

Step3: You can run this application right now
# xvidcap

Step4: Click Select rectangular area to capture that you can draw a rectangle around the area you wish to record.



Step5: Here you can see the following example





Step6: Finally, you can click Start recording button to record steps

A lot of people are playing a fackbook game 'Restaurant City'. This game is very popular in the world. If you are also playing 'Restaurant City', you maybe know what the piaipRCHack patch to do for 'Restaurant City' that will enhance your level and money quickly. This patch was developed by piaip. He is a program developer from Taiwan. The new version patch v1.12 was released by him recently. More functions have been improved in this patch. Here you can find it as follow.

* piaipRCHack_v1.12.exe


If you want to know more about him, you can refer to his website as follow.

* http://www.csie.ntu.edu.tw/~piaip/index2.html

The main purpose in writing this article is to share how to protect media files. That is because I discovered that someone will copy my entire article and then paste it into their own Blog. In fact, we can not prevent it to happen. So I have to use the rewrite module of apache server to stop it. If you are using your machine as a web server, please follow my below steps to enable rewrite module...

• 1. Confirm rewrite module has been enabled in your httpd.conf file.

# cat /usr/local/etc/apache22/httpd.conf | grep rewrite

LoadModule rewrite_module libexec/apache22/mod_rewrite.so

• 2. If you have enabled virtual host function, please modify this file httpd-vhosts.conf and then add the following contents of the blue tag：

# vi /usr/local/etc/apache22/extra/httpd-vhosts.conf

<VirtualHost *:80>
ServerAdmin bryan.yu@msa.hinet.net
DocumentRoot /usr/local/www/apache22/data/ardoros
<Location />
      RewriteEngine on
      RewriteBase /
      RewriteCond %{HTTP_REFERER} !^$
      RewriteCond %{HTTP_REFERER} !^http://www.ardoros.com(.*) [NC]--->Allow this site to access media files
      RewriteRule \.(jpg|jpeg|gif|css|swf|png|bmp|rar|zip|exe)$ - [F] --->Limiting these attached file names
</Location>
ServerName www.ardoros.com
ErrorLog /var/log/dummy-www.ardoros.com-error_log
CustomLog /var/log/dummy-www.ardoros.com-access_log common
</VirtualHost>

• 3. If you don't enable virtual host function, please modify this file httpd.conf in /usr/local/etc/apache22/ directory

# vi /usr/local/etc/apache22/httpd.conf

<ifmodule mod_rewrite.c>
      RewriteEngine on
      RewriteCond %{HTTP_REFERER} !^$
      RewriteCond %{HTTP_REFERER} !^http://www.ardoros.com(.*) [NC]
      RewriteRule \.(jpg|jpeg|gif|css|swf|png|bmp|rar|zip|exe|mp3)$ - [F]
</ifmodule>

• 4. When you have completed the above steps, please modify Wordpress related file .htaccess that can be found in your website root directory. Adding the following contents of the red tag

# vi /usr/local/www/apache22/data/your_web_directory/.htaccess

# BEGIN WordPress
#

<ifmodule mod_rewrite.c>
      RewriteEngine on
      RewriteCond %{HTTP_REFERER} !^$
      RewriteCond %{HTTP_REFERER} !^http://www.ardoros.com(.*) [NC]
      RewriteRule \.(jpg|jpeg|gif|css|swf|png|bmp|rar|zip|exe|mp3)$ - [F]
</ifmodule>

# END WordPress

Today, I want to introduce a software to draw a diagram in the Web. The name of this software is XML/SWF Charts. The main purpose of this software is to allow you to easily draw the chart in the website. There are often a lot of charts to be drew in the blogs or websites to provide more detail data for customers or users. A lot of Web sites use the PHP GD Library to draw the chart before. That is really a nice solution to display detail data in the web. However, XML/SWF Charts is convenient and easy to use for me. It works in the client-side through the SWF (Flash), so as long as the focus of preparations for Server-side XML data, this would reduce the loading on Server-side. Of course, another advantage is that you can draw the three-dimensional objects and 3D rendering and animation effects.
Actually, it was a little bit complicated software especially when I began to use it first time. So I have to take a moment to understand the contents of XML that I probably know how to use it. If you are also want to try it to draw diagram in the web, you can refer to the following steps to configure and install XML/SWF Charts for your website.

Step 1: You have to download it from the official website and then extract it to the root directory of your website

http://www.maani.us/xml_charts/charts.sit--for MacOS
http://www.maani.us/xml_charts/charts.tgz--for Linux,BSD
http://www.maani.us/xml_charts/charts.zip--for Windows


# cd /usr/local/www/apache22/data/your_web_root_directory/
# mkdir charts
# cd charts
# wget http://www.maani.us/xml_charts/charts.tgz
# tar -zxvf charts.tgz

Step 2: Now, you can see the example from the sample link as below.

http://your_web_address/charts/sample.html

Step 3: In this step, you shall copy this sample.xml file to another one such as test.xml and then fill data what you want to display. Please refer to my below example:

# cp sample.xml test.xml
# vi test.xml

<chart>
<chart_type>bar</chart_type>
<chart_transition type='scale' delay='.5' duration='0.5' order='series' />
<chart_label position='right' font='arial' bold='true' size='10' color='000000' alpha='100' />
    <chart_data>
      <row>
        <null/>
        <string>Taiwan
        <string>US
        <string>UK
      </row>
      <row>
        <string>Product A
        <number>15785
        <number>15268
        <number>15094
      </row>
      <row>
        <string>Product B
        <number>15718
        <number>14633
        <number>14504
      </row>
      <row>
        <string>Product C
        <number>15150
        <number>14253
        <number>14223
      </row>
    </chart_data>
</chart>

Step 4: Please modify the following red word parts and then add the embedded code in your web page!

<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' codebase='http://download.macromedia.com/pub/shockwave/cabs/flash /swflash.cab#version=9,0,0,0' WIDTH='400' HEIGHT='250' id='charts' ALIGN=''> <param NAME=movie VALUE='http://www.ardoros.com/charts/charts.swf?library_path=http://www.ardoros.com/charts/charts_library&xml_source=http://www.ardoros.com/charts/test.xml'></param><param NAME=quality VALUE=high> </param><param NAME=bgcolor VALUE=#dddddd> <embed src='http://www.ardoros.com/charts/charts.swf?library_path=http://www.ardoros.com/charts/charts_library&xml_source=http://www.ardoros.com/charts/test.xml' quality=high bgcolor=#dddddd WIDTH='400' HEIGHT='250' NAME='charts” ALIGN='' swLiveConnect='true' TYPE='application/x-shockwave-flash' PLUGINSPAGE='http://www.macromedia.com/go/getflashplayer'> </embed> </param></object>

PS: If you want to see the effect of XML/SWF Charts, please refer to the following article.
http://lifestory.moqin.com/?p=3494

KDE 4.3.2 has been released on 6th October, so I also upgraded my KDE version from 4.1 to 4.3 in openSUSE 11.1 yesterday. Of course, there are some reasons why I upgraded KDE version. One of which is Choqok that is my favorite applications in KDE, but it can not run on KDE 4.1 environment.
I also found an big problem that it caused me to work inconvenient. Especially when I used the Dolphin of KDE 4.1. It always hang up suddenly so that I have to terminate this process by kill command.

I really happy to use KDE 4.3 right now. All applications of KDE 4.3 can be executed stable and also very agility. The most important is that KDE was very beautiful. Here is snapshot of KDE 4.3 with AIR theme.

According to the openSUSE official release, you can install Xen related packages to implement virtual machine function. It's easy to install and use for me even VMware Workstation was my favorite VM software before. Actually, this is because the VMware updated version have to reconfigure when I upgraded it.
Here are the simple steps you can follow to make sure your installation is correct and ready to work.

Step 1: Select YaST Control Center-> Virtualization-> Install Hypervisor and Tools to install Xen



Step 2: After installation you have to reboot your machine



Step 3: Now, you can click Create Virtual Machines to choose which operation system you want to install



Step 4: If you want to install Windows 7, please choose Windows Vista or Windows (other) as below



Step 5: Now, you have to click Operating System Installation to define Installation Source such as CDROM or Disk image, and then click OK to create the VM



Step 6: Here you can see the install process in this step



Step 7: Finally, you can click Virtual Machine Manager option to run or open VM

A lot of people had experience to create a script to startup/init in Linux. All of them added a script in boot.local file before, of course included me. However, when I started using openSUSE, I found this method is invalid. Whether it is adding routing, or copy file are the same, so I have to find the right way to write a script. Actually, this file has been summarized in your openSUSE system. If you have ever seen the /etc/init.d/rc file you will know the reason.

For example: If you have two network devices in your machine, and want to add a record in routing table of your openSUSE machine to connect to another network using different gateway. You shall add a scipt name "after.local" in /etc/init.d as following.

• Environment:

eth0: inet 211.10.20.30 netmask 255.255.255.0
eth1: inet 10.1.1.30 netmask 255.255.255.0
default gateway: 211.10.20.254

• Adding after.local file:

# vi /etc/init.d/after.local

route add -net 192.168.1.0 netmask 255.255.255.0 gw 10.1.1.254

You maybe want to know why i need to install 64bit flashplayer in openSUSE 11.1 x86_64, and openSUSE 11.1 default installation contains flashplyer package. That is because flashplayer dead silent when i opened any flash media for a while even 32bit flashplayer can run on x64 platform. You can see that as below picture.



How can we fix this problem? You have to download 64bit flashplayer from this link address http://download.macromedia.com/pub/labs/flashplayer10/libflashplayer-10.0.32.18.linux-x86_64.so.tar.gz and then remove 32bit flashplayer as below picture.



Finally, please refer to the following commands to put it on the right location of your system. Actually, you can follow these steps to install 64bit flashplayer in any Linux distribution.

# tar zxvf libflashplayer-10.0.32.18.linux-x86_64.so.tar.gz
# cp libflashplayer.so /usr/lib64/browser-plugins/
# reboot

openSUSE 11.2 Milestone 8 has been released today! That is really a news for openSUSE user and i am also happy to know that, but i just installed openSUSE 11.1 before. I'm afraid I have to install opensuse again. This is because so many packages maybe need to upgrade so maybe the best way is to reinstall openSUSE for me.
I wish that openSUSE 11.1 bugs can be fix in openSUSE 11.2 because i find a little bit problem after openSUSE 11.1 installation. KNetworkManager is not the default settings for network in openSUSE 11.1. I have to modify it from the YaST-> Network Devices,although I usually configure network setting via ifup command.

openSUSE 11.2 Milestone 8 Announcement:
http://news.opensuse.org/2009/10/01/opensuse-11-2-milestone-8-released/

Today, I’m quite busy with looking for a way to install ATI vga driver in openSUSE 11.1 X86_64 correctly that was because something wrong with my machine. When I restart my system after install driver it just goes to black screen. The only way that I can login my system from another machine through ssh protocol. Actually I have never encountered this issue before so i have spent this much time trying to figure it out.
Finally, i found the way to solve it. If i install ATI driver in openSUSE 11.1, i have to run sax2 command before reboot. I have to say that i mistake a step and the black screen will not happen to me. Here you can refer to the following steps and the detail installation article from openSUSE website:

Step 1: Adding ATI driver repository
# zypper ar http://www2.ati.com/suse/11.1/ ATI_driver(repo name)

Step 2: Refresh your repository and then type a to import key
# zypper ref

Step 3: install ATI driver

# zypper in x11-video-fglrxG01
# zypper in ati-fglrxG01-kmp-KERNEL

Step 4: Run sax2 command and then fglrx driver will be written in xorg.conf file.

# sax2 -r -m 0=fglrx
# reboot

*How to install ATI driver from openSUSE website.