Sharing is the power

Share your file with windows using samba safely

2012-01-08T21:01:00.000+06:00

nautilus implements graphical interface for sharing(samba) with windows. You can found sharing option to right click on an item in nautilus.

When you check on "Allow others to create and delete files in this folder" then anyone can edit and delete files in network but they need to know your samba username and password.

When anyone try to access your content he/she will be asked for your samba username and password. If he/she know the authentication information then he/she can see,edit and delete your content you share.

If you uncheck "Allow others....." then other (who knows authentication info) only see and copy the content but can not create or delete content.

If you want that Any one in the network can see your content the check the "Guest access ..." option. Where anyone can see the file without knowing your authentication information.

Add samba user in this file:

sudo gedit /etc/samba/smbusers

Format is = . So you can map your ubuntu username with different username for samba but this is not necessary. Example: say, your username is abc then add this line to /etc/samba/smbusers

abc = "abc"

Thats means anyone can access with abc username. you can use different name on right side.

Now set password for samba abc user (not your ubuntu user) password.

sudo smbpasswd -a username [abc]

Stop unnecessary applications at startup

2011-12-27T00:28:00.004+06:00

A list of applications start when ubuntu load. Most of the applications are useful and also some applications are not necessary for every user. Example: Update manager is useful but every time it appears without any warning. In the following demonstration we will learn how to discover all start-up applications, prevent them to start and re-enable them.

Discover Application's:

All the start-up application's launcher save in "/etc/xdg/autostart". You can easily see the list

ls /etc/xdg/autostart

How to Disable:

If we open a launcher(.desktop file) in text-editor(Drag & Drop on gedit) we will see a field named: NoDisplay=false

Change the false value with true which disable the application. You can edit using text editor and save it. Another easy approach is the command line

sudo sed --in-place 's/NoDisplay=false/NoDisplay=true/g' /etc/xdg/autostart/update-notifier.desktop

In this example i disable update-notifier.

Note: Do not delete any file from /etc/xdg/autostart.

Best AMD/ATI driver for ubuntu

2011-11-18T03:47:00.001+06:00

If you have new AMD/ATI graphics notebook or desktop then i am quite sure you are facing Driver problem. I did also. From my experience i will describe the best driver for ATI and also why.

There are two kinds of driver exists.
1. Provided by ATI company
2. Open source Driver (Developed by ubuntu developer)

Best Driver ever: Open source driver (Gallium3D / Gallium 0.4

Why should not use ATI provided driver ?
     Because it is a handicap driver. ATI developer just simulate windows 3D driver working procedure. So it does not provide best service for Xorg.

Open source driver is the best with KMS support. Now question is how could you install it? Way is too simple. It is already installed and you need to just enable it.

Step1: Remove AMD provided (catalyst) driver if you have install it link.
Step2: Need to help kernel to detect your hardware specification. KMS(Kernel Mode Settings) is best way to do this. It automatically detect hardware in boot. Do not need to manually change /etc/X11/xorg.conf
Step3: Enable KMS ->
                 sudo gedit /etc/default/grub
Find this line GRUB_CMDLINE_LINUX_DEFAULT = and replace the line with GRUB_CMDLINE_LINUX_DEFAULT=radeon.modeset=1
Save and close the file
Step4:  Update the grub: sudo update-grub
Step5: Restart and after restart kernel will automatically detect your PC's hardware.
Step6: You can see your driver information from System settings-> Systeminfo
Step7: See the Frame rate : glxgears [output should be around you monitor refresh rate(60)]
Step8: Your Graphics card information : glxinfo | less
Step9: Test your graphics using these options: glxgears or glxheads or glxdemo

How to install openGL(glut library) in ubuntu

2011-10-29T09:20:00.001+06:00

To develop program in openGL , you need to install freeglut lib in you system. Following discussion is how to install, compile and run a test code

What is need to be installed?

freeglut3-dev : sudo apt-get install freeglut3-dev

How to compile using g++?

g++ -o output inputfile.cpp -lglut -lGLU or
g++ inputfile.cpp -lglut -lGLU [default output file is a.out]

Run compiled file:

./output or ./a.out

Example Code:

#include
#include
#include
#include
#include
#define PI 2.0*acos(0.0)
using namespace std;
void Init()
{
   glOrtho(-320.0,319.0,-240.0,239.0,-320,319);
   glMatrixMode(GL_PROJECTION);
   glLoadIdentity();
}
void _swap(GLint &a,GLint &b)
{
   GLint tmp;
   tmp=a;a=b;b=tmp;
}

void DrawElip(GLint x,GLint y,GLint a,GLint b)
{
GLint dx,dy;
GLint d;
dx=0;
dy=b;
glColor3f(0.0f,1.0f,0.0f);
glBegin(GL_POINTS);
glVertex2i(dx+x,dy+y);
d=(b*b)-(a*a*b)+(0.25*a*a);
while((a*a*(dy-0.5)) > (b*b*(dx+1)) )
{
    if(d<0)
      d+=b*b*(2*dx+3);
    else{
      d+=(b*b*(2*dx+3)) + (a*a*(-2*dy+2));
      dy--;

    }
    dx++;
    glVertex2i(dx+x,dy+y);
    glVertex2i(-dx+x,dy+y);
    glVertex2i(dx+x,-dy+y);
    glVertex2i(-dx+x,-dy+y);
}

d=(b*b*(dx+0.5)*(dx+0.5)) + (a*a*(dy-1)*(dy-1))-(a*a*b*b);
while(dy>0)
{
    if(d<0)
    {
      d+=(b*b*(2*dx+2)) + (a*a*(-2*dy+3));
      dx++;
    }
    else d+=(a*a*(-2*dy+3));
    dy--;
    glVertex2i(dx+x,dy+y);
    glVertex2i(-dx+x,dy+y);
    glVertex2i(dx+x,-dy+y);
    glVertex2i(-dx+x,-dy+y);
}

glEnd();
}
void DrawScene()
{
glClear(GL_COLOR_BUFFER_BIT);
glPointSize(1);
glColor3f(0.0f,1.0f,0.0f);
glBegin(GL_POINTS);
for(int i=-320;i<320;i++)
     glVertex2i(i,0);
for(int i=-240;i<239;i++)
    glVertex2i(0,i);
glEnd();
GLdouble a=30;
GLdouble b=30;
GLdouble R=a*a+b*b;
GLdouble dx=1.0;
GLdouble pos=200;
GLdouble speedFactor=0.15;
dx=dx*speedFactor;
int cnt=0;
GLdouble ratio=((b*40.0)/100.00)/11.50;
while(true)
{
    glClear(GL_COLOR_BUFFER_BIT);
    if(abs(pos+222)    if(b<30 && abs(pos+222) > b) b+=ratio;
    a=sqrt((R - b*b));
    pos-=dx;
    DrawElip(0,pos,a,b);
    if(pos<-220) {dx+=speedFactor;dx=-dx;}
    else if(pos>=200) {dx+=speedFactor;dx=-dx;}
    dx+=speedFactor;
    if(abs(pos+222)<30) cnt++;
// printf("%d\n",cnt);
    glutSwapBuffers();
}
//glFlush();

}
int main(int argc,char* argv[])
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
glutInitWindowSize(640,480);
glutCreateWindow("Elips");
Init();
glutDisplayFunc(DrawScene);
glutMainLoop();

return 0;
}

Change OS selection from GRUB in ubuntu

2011-10-24T20:22:00.001+06:00

When we use multiple OS in our system, can be selected at start-up from grub2 menu. Default ubuntu is selected in grub2. Somebody claimed to change the default selection of OS. Let see how to do this.

File to change: /etc/default/grub

Step1 : open file with your text editor : sudo gedit /etc/default/grub

Step2: See the block line, GRUB_DEFAULT=0 Here 0 means 1st line. Lets see how to assign
this number for different OS

Step3: In above picture we want change default selection to Memory Test (msmtest86+) which is 2nd in list (index start from 0)

Step4: So assign 2 in GRUB_DEFAULT=? Find out the number for your OS. If there are two OS the it is typically 5 (ubuntu 11.04 or heigher) and 4 for (ubuntu 10.10 or lower).

How to recover ubuntu (9.04 or higher) grub

2011-10-24T14:57:00.000+06:00

Step 1: Login your desktop using Live CD (Ubuntu installation CD)

Step 2: Open terminal and login as root: sudo -i

Step3: Find you root partition where you ubuntu is installed: fdisk -l [Must complete step 2]

Setp4: Mount your root partition in /mnt (for me /dev/sdb3) : sudo mount /dev/sdXY /mnt
[careful about your root partition. replace sdXY with yours.]

Setp5 : Recover : sudo grub-install --root-directory=/mnt /dev/sdX
[ For me sdX is sdb, because root partition is /dev/sdb3]

Setp6: Reboot your computer. After reboot : sudo update-grub

How to mount aptoncd.iso and install using synaptic manager

2011-10-22T03:08:00.001+06:00

What to do?

Create a mount point
Mount iso file
Add mount point in synaptic manager

How to do?

Create a mount point : sudo mkdir -p /media/apt
Mount Iso : sudo mount filename.iso /media/apt -t iso9660 -o loop
Or use gmoutiso apps to mount iso
Open with synaptic : sudo synaptic --add-cdrom=/media/apt

Preview:

Note

Do not need to add each time in synaptic manager. If you do one time then just do 2nd step after reboot. (if need to install software)
You can also auto mount iso in startup
Unmount iso: sudo umount /media/apt
Install gmountiso : sudo apt-get install gmountiso

Know more your computer in ubuntu

2011-10-07T20:57:00.002+06:00

There is no good gui application default installed in ubuntu to see your computer information. Here i am providing some command to know more about your ubuntu and your machine

Whice ubuntu Distribution : cat /etc/lsb-release
About Ethernet Card : lspci | grep 'Ethernet controller:'
Know your wireless card model: lspci | grep 'Network controller:'
About Video Controller : lspci | grep 'VGA compatible controller:'
Kernel Version : uname -r
OS architecture : uname -m
Operation system : uname -o
Home folder name : echo $HOME
Environment Path : echo $PATH
User name : echo $USER
Cpu Information: cat /proc/cpuinfoCpu available speed: cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
Ram info: free -m
Details about ram: cat /proc/cpuinfo
Manual page of any command: man command

gnome-volume-control-applet gone in ubuntu

2011-09-09T20:13:00.000+06:00

If you are using ubuntu 11.04 then just install indicator-sound and logout. It will restore your volume-control-applet.

sudo apt-get install indicator-sound

If you are using < 11.04 then right click on gnome-panel, select add to panel. Add indicator applet.

Waiting for sound system to respond problem solution

2011-09-09T20:06:00.002+06:00

In this problem we can not open sound volume control menu. If occurs when we try to login with root. Fix is very simple. Delete pulse audio user file.

sudo rm -r .pulse
sudo rm -r .pulse-cookie

Now restart your computer. Problem solve. If does not solve then try to reinstall pulseaudio.

sudo apt-get --reinstall pulseaudio

Portable apps in Linux Ubuntu

2011-08-29T04:57:00.003+06:00

At last portable applications come in Linux. Who have INTERNET problem in LINUX(ubuntu) can use portable apps. It is a executable binary file and just need one double-click to run.

How to Install: Do not need to install. just run application with double click. Don't forget to change executable permission after download. Linux does not allow default executable permission for any downloaded file for security reason.

How to change Permission after Download : open terminal. Change directory to downloaded folder
sudo chmod a+x apps_name

How to run : Just double click. :)

Where to download : Now you can download some popular apps from
portablelinuxapps.org

Advantage of portable apps: One click to run. No installation problem and dependency. Can save for next use and many more

Disadvantage : It's build with redundant dependencies, so this apps file will occupy more hard disk space (Don't afraid not too much).

Careful : If you want you can same app's file anywhere (any linux pc), But only copy of apps file does not contain the previous works or settings. Most of the application save their configuration and cache file in home directory. So if you want this application ready with previous configuration and work then don't forget to copy (hidden file) .application_name folder.

Create your own repositories (install software from local folder in ubuntu)

2011-07-22T12:38:00.000+06:00

Ubuntu software are free so we can not buy it form market. We have to installed it from INTERNET. If we want to reinstall a ubuntu version do we need to download packages[software] from INTERNET again ?! No we can install from previous packages in your hard disk. If someone your friend or you already installed software from internet then backup packages for next use. copy this following folder

/var/cache/apt/archives [copy archives folder]

Now you are in a situation, install fresh ubuntu and you don't have software installed. copy following command in a file named install.sh

dpkg-scanpackages archives /dev/null | gzip -9c > Packages.gz

save this file in your archives [backup] parent directory. Now backup sources.list file
/etc/apt/sources.list [keep a copy this file]

now edit sources.list with gedit(editor) delete everything and add
deb file:your_archive_parent_direcotry ./

Your system is ready. you can install software using synaptic or terminal. use update command before install
sudo apt-get update

Ubuntu Software Installation

2011-05-18T03:00:00.000+06:00

We always know software installation is very complicated in LINUX. OH MY GOD! Is it really true?
Ok Lets find out. I will explain this with the help of some question.

1. Why we think application installation is complicated ? It is only for programmer !

ANS: Actually we are so much used to windows. In windows application installation we buy a CD containing application folder and click setup.exe to start installation and next next next ... finish. But in Linux all packages are available in INTERNET. Just install any package in oneClick from software center or synaptic manager. Even you don't have to know where is your package in internet. We do not familiar with this kind of installation process, so IT IS SO HARD OMG!

2. Why command line installation ?
ANS: LINUX architecture is based on UNIX. So it was developed when there was no graphical interface in OS. Linux doest not change there program just include a graphical interface between a program and user. But command line is more speedy if you are a skillful user. Because Graphical interface actually take input from user and run command for a commnad-line program and show the output in a organized way.

3. Basic Software installation process.

ANS: First of all when LINUX is newly installed then it does not have any information about packages where to download and install. So first up-to-date your system.
up-to-date: Click Reload button in Synaptic manager application. It automatically update package information
Second, system is ready. Just check desire package and press apply button. Installation complete in one or two click.

4. What is dependency?

ANS: Suppose someone already developed a packages which generate machine code from source code. I want to develop a IDE which will be used as source code editor , convert source code to machine code and highlight syntax and run file. So i do not need to develop a program which convert source code to machine code because which is already developed by someone. I just use it and develop my other jobs. So my application depends on other's packages. It is called dependency.

5. Why dependency?

ANS: According to previous ans it will take too many to develop a program for source code converter. SO it reduce development time, individuals application size.

6. What about others who have no INTERNET connection?

ANS: They also can use LINUX and install new applications but for that they need packages.There are some easy steps like aptoncd to install offline packages.

[ubuntu] how to install remastersys to create custom ubuntu CD

2011-03-11T12:51:00.000+06:00

Remastersys is a tool that can be used to do 2 things with an existing Klikit or Ubuntu or derivative installation.It can make a full system backup including personal data to a live cd or dvd that you can use anywhere and install. It can make a distributable copy you can share with friends. This will not have any of your personal user data in it.

Install Remastersys in Ubuntu

The Remastersys repository needs to be added to your /etc/apt/sources.list

sudo vi /etc/apt/sources.list

Paste the following into the sources.list:

# Remastersys
deb http://www.remastersys.klikit-linux.com/repository remastersys/

Save and exit the file.

Update the source list using the following command

sudo apt-get update

Install remastersys using the following command

sudo apt-get install remastersys

This will complete the installation

Using Remastersys

In order to learn how you can use remastersys, run

sudo remastersys

remastersys Syntax

sudo remastersys backup|clean|dist [cdfs|iso] [filename.iso]

remastersys Examples

1) to make a livecd/dvd backup of your system

sudo remastersys backup

2) to make a livecd/dvd backup and call the iso custom.iso

sudo remastersys backup custom.iso

3) to clean up temporary files of remastersys

sudo remastersys clean

4) to make a distributable livecd/dvd of your system

sudo remastersys dist

5) to make a distributable livecd/dvd filesystem only

sudo remastersys dist cdfs

6) to make a distributable iso named custom.iso but only if the cdfs is already present

sudo remastersys dist iso custom.iso

cdfs and iso options should only be used if you wish to modify something on the cd before the iso is created. An example of this would be to modify the isolinux portion of the livecd/dvd

Creating An ISO Image

To create an iso image of your installation, simply run

sudo remastersys dist

This will create an iso image called customdist.iso in the /home/remastersys directory. The dist option makes that your personal folder (e.g. /home/ruchi) will not be included in the iso image. You might have to insert your Ubuntu installation CD during the process.

This is how the end of the process looks:

[...]
92.16% done, estimate finish Wed DEC 28 15:31:25 2007
93.39% done, estimate finish Wed DEC 28 15:31:25 2007
94.62% done, estimate finish Wed DEC 28 15:31:24 2007
95.85% done, estimate finish Wed DEC 28 15:31:24 2007
97.08% done, estimate finish Wed DEC 28 15:31:25 2007
98.31% done, estimate finish Wed DEC 28 15:31:25 2007
99.54% done, estimate finish Wed DEC 28 15:31:25 2007
Total translation table size: 2048
Total rockridge attributes bytes: 3950
Total directory bytes: 9094
Path table size(bytes): 54
Max brk space used 0
406890 extents written (794 MB)

/home/remastersys/customdist.iso is ready to be burned or tested in a virtual machine.

Check the size and if it is larger than 700MB you will need to burn it to a dvd

796M /home/remastersys/customdist.iso

Clean Up

After you’ve burnt the iso image onto a CD/DVD, you can run

sudo remastersys clean

to remove all temporary file created during the iso generation as well as the /home/remastersys directory.

[Ubuntu] wine directory space problem

2011-03-11T11:34:00.001+06:00

Wine is a powerful emulator to run some windows software. Wine's default directory in ~/.wine/drive_c. But problem is when we try to install Window's soft it only install on this directory. And another problem is most of us do not have much space in home (filesystem) directory. So we want to move our wine to other drive. OK here is the solution.
CUT drive_c from ~/.wine to your desire drive. Right click on drive_c and make a link. Cut the link to ~/.wine and rename it to drive_c. SO problem solve. All software read it's directory on ~/.wine and works well, but actually this space on other drive.
Some useful Windows software run in wine:

1. Micromedia dreamweaver
2. Office 2007
3. IDM

Best ubuntu's applications

2011-02-20T21:48:00.000+06:00

When we want to switch to linux(ubuntu) it is problematic that we need to know about what softwares are best and easy to work. Here are some useful and popular softwares for ubuntu

1. Text editor

gedit [ It has 20+ programming syntax highlighter and so many plugins to make the application more userful]
Emacs [It is a rich text editor. Not default in ubuntu. you have to install it]
vim [It a powerful text editor for scripting or programming language. it is a command line editor. It's gtk version is gvim]
Kwrite [it actually a kde text editor]
lyx [it is a popular command line editor]

2. Programming IDE

geany [It is the best ide i ever see. light weight and has quick compile and run keys]
netbeans [It is best for java developer.]
codblock [it is also a powerful ide. It's extra advantage is it has gdb (debugger) which is easy to use ]
bluefish [best for php or html]

3. Graphics

gimp [it is very powerful photo editor. it is like adobe photoshop]
F-spot [nice photo viewer]
Picasa [it is google's awesome photo viewer and organizer ]

4. Internet Browser

Firefox
Chrome
Medori [it is light weight speedy browser]

5. Music player [video]

vlc [vlc is the best player. which supports almost all type of videos and audios]
totem [it is powerful and ubuntu's default player. But need to install plugins to see the common formate videos and audios]
mplayer [it is also a powerful video player]

6. Converter

ffmpeg [It is awesome converter. It can convert almost any video to audio video to video. I think you do not need any if you have this. It can also convert HD videos]
mkvtoolnix-gui [it a only mkv video converter]

7. Burner (dvd-cd writer)

k3b [it the best burner. it is support so many formate]
brasero [it is ubuntu's default. it also a very powerful burner]

8. Phone manager

wammu

9. Disk manager

gparted [it the best partition manager]

10. Pdf reader

Document viewer [it default and good to work]
adobe reader [It is good. but do not give good service with ubuntu]

11. wine [it is emulator. it can run some of windows applications]

Force Disk Check in ubuntu

2010-10-14T22:23:00.000+06:00

Linux generally use ext3/ext4 partition as filesystem. It is checked it's filesystem after every 30 boot and fix if find any error. But if you have any doubt about your filesystem then your can make force your os to check it on next boot.
See How linux know that it's time to check disk. It just count the boot and when the number of boot is 30 then it just create a file named forcefck on root (/) directory. When OS found forckfck file on startup then it just start the disk check. So to check your filesystem on next boot just manually create a file on root directory.

code: sudo touch /forcefck

Docbar (Supar bar in windows 7)

2010-03-18T12:52:00.001+06:00

Dockbar is a awesome feature in ubuntu. First add repositories.

-For Ubuntu Karmic Koala:

sudo add-apt-repository ppa:dockbar-main/ppa

Ubuntu Hardy, Intrepid or Jaunty:

sudo sh -c "echo 'deb http://ppa.launchpad.net/dockbar-main/ppa/ubuntu YOUR_UBUNTU_VERSION_HERE main' >> /etc/apt/sources.list"
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 38BD81CA

Update and install docxbar :

sudo apt-get update && sudo apt-get install dockbarx

Run dockbarx : (Alt + F2)
right-button on panel and select add to panel
dockbarx applet
add to panel

Add program in dockbarx:

Run the program. now click right-button on icon of the program in dockbarx and select pin application

Set the properties:

Speed UP your internet little bit.......(only for linux user)

2010-01-28T10:22:00.000+06:00

Open a Terminal via Applications->Accessories->Terminal and type the following
sudo gedit /etc/sysctl.conf

Then Paste the Following at the end of the file:
## increase TCP max buffer size setable using setsockopt()
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
## increase Linux autotuning TCP buffer limits
## min, default, and max number of bytes to use
## set max to at least 4MB, or higher if you use very high BDP paths
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
## don't cache ssthresh from previous connection
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_moderate_rcvbuf = 1
## recommended to increase this for 1000 BT or higher
net.core.netdev_max_backlog = 2500
## for 10 GigE, use this, uncomment below
## net.core.netdev_max_backlog = 30000
## Turn off timestamps if you're on a gigabit or very busy network
## Having it off is one less thing the IP stack needs to work on
## net.ipv4.tcp_timestamps = 0
## disable tcp selective acknowledgements.
net.ipv4.tcp_sack = 0
##enable window scaling
net.ipv4.tcp_window_scaling = 1

Save and exit.

Then type the following to to apply the settings.
sudo sysctl -p
You can disable all these settings by removing these lines you added via:
sudo gedit /etc/sysctl.conf

Install PHP, Apache and Mysql in fedora

2010-01-04T14:31:00.002+06:00

Open terminal(application>system tools>terminal
To install php, myqsql etc package :

yum -y install httpd php mysql mysql-server php-mysql

Configure the new services :

/sbin/chkconfig httpd on
/sbin/chkconfig --add mysqld
/sbin/chkconfig mysqld on

/sbin/service httpd start
/sbin/service mysqld start

To give a root password in myssql :

mysqladmin -u root password 'new-password'

Test Apache server:

open firefox and write "localhost" (without quote)on address bar.

Run php page :

Create a new text file. Save it with .php extension. Open it with any text editor or you can use bluefish(php editor) and write php code or script (i.e ). Save and copy the file in /var/www/http/ or /var/www/.
Now in firefox addressbar write "localhost/urfilename". example: If u save the file in /var/www/myfile/ then write "localhost/myfile/urfilename"

Use GUI tools for mysql:

You can use mysql in terminal and you can also use gui(with user interface) tools.
you can install mysql-administrator and mysql-query-browser
yum -y install mysql-administrator mysql-query-browser

USE PHP IN UBUNTU

2009-10-13T21:47:00.000+07:00

install php5, apache2, mysql-server
code :
sudo apt-get install apache2 mysql-server php5

You may install bluefish as php source editor.
code;
sudo apt-get install bluefish

Now question is, how could you show php file in firefox?

open your file browser with root permission and go to /var/www folder

code:
gksu nautilus /var/www

create a file with .php extension. open it with text editor (gedit) or bluefish editor.

You can see your created php file using firefox.

http://localhost/filename.php

if you save your file in /var/www/example then your address will be

http://localhost/example/filename.php

Setup apache2 and mysql server in ubuntu

2009-05-17T22:42:00.001+06:00

Solution how to setup mysql server and client >>>>>>>>
run those command in terminal

sudo apt-get install mysql-server
sudo apt-get install apache2
sudo apt-get install gmysqlcc

Open Gmysqlcc from application>programming>
select localhost
press edit server

give password that u give in mysql-server (when installing )
uncheck "Read only server"
Now select connection
it will open new window
select sql and write the query

install remastersys to create custom ubuntu CD

2009-02-28T17:21:00.001+06:00

Install Emerald Theme in ubuntu

2009-02-26T20:08:00.003+06:00

you must have install compiz fusion

Code:
sudo apt-get install compizconfig-settings-manager

Now add repositories in your source.list

Code:
sudo su -c 'echo deb http://ppa.dogfood.launchpad.net/amaranth/ubuntu feisty main >> /etc/apt/sources.list'

Update your system
Code:
sudo apt-get update

Install emerald manager and theme

Code:
sudo apt-get install emerald emerald-themes

Now try this process to use emerald.......
select your favourite theme from emerald-theme-manager (find in main menu)
open the session menu> Click add button and write this

name: emerald
command: emerald --replace

Save it and login again (Clt+Alt+Backspace)
Enjoy your favourite ubuntu Desktop.

Fix grub from live cd in ubuntu

2009-02-21T14:52:00.002+06:00

IF you are not enable to boot from hard disk or your grub loadder failed.Don`t worry,try this......
use live cd to boot from cd.
Select the option "Try ubuntu without any change......"
when Desktop will load, open the terminal
[code]
grub
[/code]
You will find a screen like this "grub>"
now write
[code]
find /boot/grub/stage1
[/code]
It will return which partion use for ubuntu
example: (hdX,X) my is (hd0,9)
[code]
root (hd?,?) //your partion number
setup (hd?)
quit
reboot
[\code]
Now u will able to boot from hard disk

Share internet between two pc in vista or xp

2009-02-21T14:40:00.002+06:00

You need two ethernet card(LAN) in which pc has internet connection.
IP Setting:

->pc which is connected with internet {example}
ip: 192.168.0.1
submask: 255.255.255.0

->pc which need internet connection
ip:192.168.0.5
submask:255.255.255.0
default gateway:192.168.0.1
DNS: 192.168.0.1

Now go the properties of ethernet card which is connetcted to the internet.Select Sharing (Advance) tab.Check the option(allow other network user to connect through this computer internet connection).Save and exit. Now you able to access internet from other pc.
Note:Connection speed maybe share........

Turn ubuntu to mac ( theme)

2009-02-19T14:00:00.002+06:00

The updated version of this tutorial for Ubuntu Intrepid can be found at Turn Ubuntu Intrepid into Mac Leopard.

You can’t really turn a Linux system to a Mac, but you definitely can make your Ubuntu Hardy looks like a Mac OSX Leopard.

If you want to change this

into

, follow the steps below.

Before we start…

First, create a folder in your Home and name it Mac_files. Download the following files to the Mac_files folder.

Using Archive manager, extract the ~~three Mac4Lin zip files~~ Modified Mac4Lin theme and Mac4Lin wallpaper to the Mac_files folder.

Apply Mac OSX Leopard Theme

Go to System->Preferences->Appearance.

Select Install and select the Mac4Lin GTK theme (/home/username/Mac_files/Mac4Lin_v0.4/GTK Metacity Theme/Mac4Lin_GTK_v0.4.tar.gz).

Next, click Install again and select the Mac4Lin icon theme. (~~/home/username/Mac_files/Mac4Lin_Icons_Part2_v0.4.tar.gz~~ /home/username/Mac_files/Mac4Lin_Icons_modified.tar.gz). When prompted, select “Apply new themes“.

Click Install again and select the Mac4Lin mouse cursor theme. (/home/username/Mac_files/Mac4Lin_v0.4/GTK Cursor Theme/Mac4Lin_Cursors_v0.4.tar.gz). Select “Apply new themes” when prompted.

Click ‘customize’ and choose Mac4Lin_GTK_v0.4. Go to the “Window border” tab, choose Mac4Lin_GTK_v0.4. Click Close.

On the top, go to the Background tab. Click Add and select the Leopard wallpaper. (/home/username/Mac_files/Wallpapers/Leopard.jpg). Click Close to terminate the Appearance window

Install the Dock (Avant Window Navigator)

Open a terminal (Applications->Accessories->Terminal) and type

gksu gedit /etc/apt/sources.list

and add the following lines to the end of the file:

deb http://ppa.launchpad.net/awn-testing/ubuntu hardy main
deb-src http://ppa.launchpad.net/awn-testing/ubuntu hardy main

Save and close the file. In your terminal, type

sudo apt-get update
sudo apt-get install avant-window-navigator-trunk awn-manager-trunk awn-extras-applets-trunk

Go to System->Preferences->AWN manager. On the left, click on the Theme. On the right, click Add and navigate to the Mac_files folder. Select the Elegant_glass.tgz file. Check the bullet beside the Elegant glass theme and click Apply.

Next on the left, click on the Applet icon. On the right, scroll down to the stack Applet. Highlight it, then click Activate. This will add the Mac Leopard stack to your dock.

Before you launch the AWN, remove the bottom panel from the desktop first. Right click on the bottom panel and select “delete this panel”. Open AWN via Applications->Accessories->Avant Window Navigator. Once it is activated, you can simply drag and drop the applications into the dock.

Install OSX Fonts

Open a terminal and type the following:

sudo apt-get install msttcorefonts

This will Install the Microsoft core fonts.

Next, copy the OSX fonts to the fonts folder

cd /usr/share/fonts
sudo tar xvzf /home/username/Mac_files/Mac4Lin_v0.4/Fonts/OSX_Fonts.tar.gz

Configure the fonts:

cd/
sudo tar xvjpf /home/username/Mac_files/Mac4Lin_v0.4/Fonts/fontconfig.tbz -C /etc/fonts

Open the Appearance window (System->Preferences->Appearance) and select Fonts tab. Select the following fonts according to the image below. Click Close.

Change the traffic light window control to the left

In the terminal, type

gconf-editor

This will bring up the gconf-editor window. Scroll down to App->Metacity->general. On the right, double click on the button_layout and change the content to ‘close,minimize,maximize:menu’ (without the quote). Click Ok and close the gconf-editor.

Change the menubar

Remove all the icon and applications on the left side of the top panel. Right-click on the icon and select ‘Remove from panel‘. You will left with something like this:

On the right of the top panel, remove the logout icon. Still on the right hand side of the top panel, right click and select ‘Add to panel‘. Scroll down the list and add ‘Search for files‘. This will add the spotlight icon to the panel.

On the extreme left, right-click and select ‘Add to panel‘. Scroll down the list and add ‘Main Menu‘. This will add the apple icon on the left. You can now log out and shut down from the Apple dropdown menu (same as Mac OSX).

Next, we are going to install globalmenu so as to display the menubar for each application. In your terminal,

cd Mac_files
wget http://gnome2-globalmenu.googlecode.com/files/gnome-globalmenu-0.4-svn964.tar.gz
tar zxvf gnome-globalmenu-0.4-svn964.tar.gz
cd globalmenu
sudo dpkg -i *.deb

If you have any errors when installing the package, try

sudo dpkg -i –force-overwrite *.deb

If you are having some installation problems with the gnome-globalmenu-applet, try

sudo apt-get install -f

Once finished, right click on the top panel and select ‘Add to panel‘. Scroll down the list and add ‘Global Menu Applet‘.

You might not see anything initially. Log out and log in again, you should now see the menubar for each application showing on the panel.

If your globalmenu is of a different shade of grey from the rest of the panel (as shown in the image below), right click on any empty space on the panel and select ‘Properties‘. Go to Background tab and select ‘Background image’. Under the selection, go to /home/username/.themes/Mac4Lin_GTK_v0.4/gtk-2.0/Panel and select panel-bg.png. Click OK. (Updated: If you can’t find the .themes folder, right-click and select ‘show hidden files‘.)

Drag the globalmenu to the left just beside the Apple icon. Right click on the globalmenu and select ‘Preferences’. Tick the box beside ‘Display the title of the current application‘ and put maximum width 100. Select the font to be Lucida Grande Bold. Click Apply and OK. You should now have a desktop that resemble Mac Leopard.

Configuring the Login screen

Click on the Apple icon, go to System->Administration->Login Window. On the Local tab, click Add. Navigate to the path /filesystem/home/username/Mac_files/Mac4Lin_v0.4/GDM Theme and select the file Mac4Lin_GDM_v0.4.tar.gz. Check the box beside the newly installed theme to activate it.

Underneath, there is a color selection field, select it and key in the number E5E5E5 into the color code field.

Click Ok. Log out. You should see the login screen as the diagram below.

Configure usplash screen

usplash is the screen that you see when your computer is booting up. We are going to change it to show the white apple screen. In your terminal,

sudo apt-get install startupmanager

Go to System->Administration->Start-Up Manager Go to Appearance tab. Click on the ‘Manage bootloader theme‘. Click Add and navigate to the file /filesystem/home/username/Mac_files/Mac4Lin_v0.4/GRUB Splash/appleblack.xpm.gz. Check the box “Use background image for bootloader menu” and select ‘appleblack”.

Next, click “Manage usplash theme”. Click Add and add the file /filesystem/home/username/Mac_files/Mac4Lin_v0.4/USplash Theme/osx-splash.so. Click OK. Select OSX-splash from the dropdown box.

Now reboot. You should see the following images:

Creating Dashboard effect

We will use a combination of screenlets and Compiz widget plugin to achieve the dashboard effect.

Install Screenlets

sudo apt-get install screenlets compizconfig-settings-manager

Go to System->Preferences->Advanced Desktop Effect Setting. On the Left, click on Desktop. On the right, put a check beside ‘Widget layer’

Go to Accessories->Screenlets. Activate the widgets that you want to display. Right click on the widget and select ‘Properties’. Go to Options tab and select ‘Treat as widget’. Do this for all the widgets that you have activated.

You can now see your dashboard in action by pressing F9.

Done. You have completed the transformation of your Ubuntu desktop to Mac OSX Leopard.

Some screenshots:

Fix root account theme in ubuntu

2009-02-19T13:41:00.000+06:00

When we open nautilus with sudo command, the file browser theme like a classic window. We can fix it with only three command
Code:
sudo ln -s ~/.themes /root/.themes
sudo ln -s ~/.icons /root/.icons
sudo ln -s ~/.fonts /root/.fonts

Share internet between two pc in ubuntu

2009-02-14T13:43:00.000+06:00

set ip:
example:
pc which is connected with internet
ip: 192.168.0.1
submask: 255.255.255.0

pc which need internet connection
ip:192.168.0.5
submask:255.255.255.0
default gateway:192.168.0.1
DNS: 192.168.0.1
#Open terminal and login as root
code:
su

1. Start by configuring the network card that interfaces to the other computers on you network:

$ ifconfig ethX ip

where ethX is the network card and ip is your desired server ip address (Usually 192.168.0.1 is used)

Tips: your onboard ethernet will be eth0 and extra ethernet will be eth1

2. Then configure the NAT as follows:

$ iptables -t nat -A POSTROUTING -o ethX -j MASQUERADE

where ethX is the network card that the Internet is coming from

$ echo 1 > /proc/sys/net/ipv4/ip_forward

3. Install dnsmasq and ipmasq using apt-get:

$ apt-get install dnsmasq ipmasq

4. Restart dnsmasq:

$ /etc/init.d/dnsmasq restart

5. Reconfigure ipmasq to start after networking has been started:

$ dpkg-reconfigure ipmasq

6. Repeat steps 1 and 2.

7. Add the line "net.ipv4.ip_forward = 1" to /etc/sysctl.conf

$ gedit /etc/sysctl.conf

8. Reboot.

Alternative Windows media player

2009-02-13T03:07:00.000+06:00

Process of installing Windows XP

2009-02-13T02:56:00.001+06:00

In this Tech Tip, we will give you some information about installing Microsoft Windows XP on your computer. Most Windows XP products including Windows XP Professional and Windows XP Home Edition install the same way

Before you start, ensure that your hardware is correctly installed, then place your Windows CD into the CD or DVD drive on your computer and reboot your system. If you don’t have your BIOS set to boot from CD before your hard drive, you will likely encounter problems. However you can go into the BIOS by pressing the appropriate key when prompted during the POST (Power On Self Test). Typically, you will press the “delete” or "F2" key, but this can vary from one motherboard and BIOS to another.

Once you are in the BIOS settings, look for the boot sequence tabs. Each motherboard vendor usually has a different BIOS set up. Check your motherboard owner’s manual for more information if you can’t find the boot settings menu. Once you have modified the BIOS settings, save them, exit the BIOS and reboot. If the boot sequence is correct, you should see the screen reading “Windows is preparing for installation”.

After you accept the EULA, you will be taken to a screen that asks you to choose your file system. Your options are NTFS (New Technology File System) or FAT32 (File Allocation Table 32). FAT32 is the older file system used with Windows 98. NTFS is the preferred choice for a Windows XP installation and our recommendation. The NTFS file system has improved functionality for security and data integrity and was first introduced in the Windows NT operating system. Choose the file system for your installation and press “F” to begin the formatting and installation. If you had any data on the hard drive you are using, it will be lost at this point. However, if you took our advice earlier and backed up your files, you should be okay.

Once the format is successful, the Windows installation process automatically installs the required files and reboots when needed. After a couple of reboots you will be asked to activate Windows by choosing a user name and a password. Windows activation is the process of enabling unrestricted use of Windows via your Internet connection with the Microsoft servers. If you don’t complete activation during the initial loading, Windows will shut down after 30 days and you won’t be able to use it. But don’t worry -- you do have 30 days to activate it after the first time it runs.

There are very few motherboards utilizing a network (RJ45) jack for broadband connection that do not require drivers to operate. If the network jack on your motherboard requires drivers and you use a broadband connection to access the internet, you won’t be able to use the internet to activate Windows until you install the drivers on your hard drive. If you are connecting via dial-up, you will need to make sure the drivers for your modem are installed before activating. If you don’t have an internet connection just yet, your Windows software paperwork should have come with a number you can call to activate. Once the drivers are installed, you will be able to select “Activate Windows” in the Start menu to complete with Windows activation process.

After a fresh install, the icons for some of the familiar Windows components like “My Computer”, “My Documents” and others will not be on your desktop. If you want to add them, simply right click your mouse in a vacant space on the Windows desktop. Select “properties”, then “desktop”, then choose “customize desktop” at the bottom of that window. You will see check boxes for the common desktop icons there as well as the checkbox for the clean desktop wizard. Once you choose the icons you want on the desktop, select “apply” and close the window. Your icons should now be on your desktop.

ref:http://www.geeks.com/techtips/2006/techtips-31aug06.htm

Set static IP (network) in Ubuntu 8.10

2009-02-12T12:02:00.000+06:00

It is bug of network in ubuntu 8.10. One can not save the setting of network. We have to set it manually.
Open the terminal:
Remove network-manager and network-manager-gnome
code:
sudo apt-get remove network-manager network-manager-gnome

Modify the following file (network interface)
code:
gksudo gedit /etc/network/interfaces
This file contains following line

auto lo
iface lo inet loopback
auto eth1
iface eth1 inet static
address 10.0.0.1
netmask 255.255.255.0
gateway 10.10.0.149
if your ethernet is onboard then it will be eth0 otherwise eth1
address :your ip address
netmask:submask
gateway: your default gateway
save the page (Clt +s)

SET DNS:
code:
sudo gedit /etc/resolv.conf
This file contain following line

# Generated by NetworkManager
search 204.112.194.243
nameserver 116.193.170.5
nameserver 204.112.194.243

nameserver :you DNS number
save the file
restart the network
code:
sudo /etc/init.d/networking restart

now restart you computer.