Open DNS is most accepted DNS and its performance is more good when compared to others. Also is any spelling mistakes in the domain names or urls, Open dns will display similar possibilities. If you feel that the broadband connection you are using is often getting disconnected and it takes time to reconfigure, or if you feel that the dns service is slow switch to Open DNS. You can do this by changing the Primary and Secodary DNS in your network settings in your Operating system. But, you will have to do this changes in the network setting, when ever you reconnect the internet. If you feel to permanently change it, login to the adsl router and change it. How to do this,

Check whether your ADSL modem is connected to your computer, and check whether the lan is established. Now open a new browser, enter the ip, 192.168.1.1 (router ip) in the address bar. Enter the user name and password (default username and password is admin, admin). The ADSL router setup page will appear, in that click Interface Setup-> LAN and then in the DHCP section change Primary and Secondary DNS to the following Open DNS IPs

• 208.67.222.222
• 208.67.220.220

And feel the difference…

Rosario Connecting Internet, Internet DataOne, Internet

While i was working with my hardy in Virtual Box, after installing few pacakages my hardy started mis behaving, my lap was looking fine, but i couldnt open any of my softwares not even i could open my Open Office writter in user mode. But i could open them in terminal with sudo. So i restarted my lap. After booting in, my hardy displayed a message like

Loading, pease wait…
Kinit: name_to_dev_t(/dev/disk/by-uuid/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)= sda(8,8)
kinit: No resume image, doing normal boot…

After which, i will get a login message, which would login to shell.

I tried so many things, i could solve the problem. I switched on my desktop and connected net and went to IRC to #ubuntu channel for help, but in vain. And then googled so long to get so many solutions but none of them worked.

Solutions were,

1. $fdisk -l | grep swap

$swapoff /dev/sdax

$mkswap /dev/sdax

$update-initramfs -u

1. $sudo aptitude install update-usplash-theme usplash-theme-ubuntu

$sudo update-usplash-theme usplash-theme-ubuntu

1. $sudo apt-get install ubuntu-desktop

None of the solutions worked, in IRC only one person gave a response, he too told to use a rescue cd. While googling i learned few things,

What is Resume Image?

Resume image is nothing but a file that stores the state of the machine while shutting down or suspending and is kept in the swap space while shutting down or suspending and gets back to the same state when rebooted of resumed.

So finally after trying so hard last my patience and decided to reinstall, took the Ubuntu 8.04 LTS dvd and installed it over night. After installing it and all my required packages from net, i say the clock it was 5.30 am. Went to bed…

Hi viewers do you have solution….

Rosario Ubuntu Ubuntu

You will have a question like can i boot my Windows XP or Vista inside Ubuntu of any Linux when they all reside in the same hard disk. The answer is here. The first step for that is you should create a virtual image of your hard drive.

Step 1: Creating Virtual hard drive.

$sudo VBoxManage internalcommands createrawvmdk -filename ./WinXP.vmdk -rawdisk /dev/sda -relative -register

You will get a “RAW host disk access VMDK file ./WinXP.vmdk created successfully.”

Step 2: Adding the Virtual disk file to the Virtual Box.

Open VirtualBox and choose the menu File->Virtual Disk Manager and in the window that opens click on the Add option and choose the recently created vmdk file (WinXp.vmdk)

Step 3: Creating a New Virtual Machine

Click on the New option and in the Create New Virtual Machine wizard, click Next

Enter the OS Name as WinXP and OS Type as Windows XP, and Click Next

Select the Memory based on the availabilty. In my case i have 2 gb Ram and so i selest 330 mb. And Click Next

Here comes to select the Virtual Hard drive file. Click on Existing option

Select the recently created vmdk file. (WinXP.vmdk)

Click Next and then Finish option.

Step 4: Editting the Settings of the Virtual Machine

Select the recently created virtual machine (WinXp) and Click on the Settings page. And enable Audio, Serial Ports, USB ports, CD/DVD drive as host cd/dvd drive, etc

Goto Shared Folders option and select a shared folder created some where previously (here i have selected /tmp/VirtualBox/SharedXP, which i created previously)

Now select you Start option, and for your surprice you will see your grub menu…

Note: Here in grub, the first option is the ubuntu which iam already in, its not adviced to select it again, select the Virtual OS type you have choosed already.

Rosario Applications, Ubuntu, Virtualisation Ubuntu, VirtualBox

Most of the laptop brands you purchase comes with only a single partition(or only with C drive) and few partions like Recovery, which is not for our use. Most people think of Partition Magic softwares or Boot CDs. Your choice are right but you cannot be sure, whether the preinstalled Vista will be safe. Most case, your partitioning ends in total formatting of the harddrive. Is there any way to partition the laptops, without formatting or removing vista or recovery. The answer is here.

Put the Ubuntu Live CD in the CD drive and boot in the Live cd mode. Goto Bios settings, change boot priority to cd drive, and put the cd in drive save and restart. In the live cd mode, use the menu System->Administrator->PartionEditor(Gparted) or in the terminal $sudo gparted to open the GParted software.

In a system there can be only 4 Primary partions and each Primary partions have few good number of Secondary partions. In the Gparted software you will get a good picture of your harddrive. Locate the C Drive in the list, Right Click and select Resize/Move. Now you can find the used portion of the C Drive being yellow shaded. Click and drag your left end pointer as you wish to allocate your C Drive. (Not less than the used portion). Now the C Drive will be reduced leaving a free memory. Now right click and select New option.

If you have already, three primary partions, create the fouth partion as extended to have some partition as you require as extended. Have look at the picture you will get a clear picture. Since for installing Linux, you wil require swap, home partion, etc and so only four primary partions will not be enough.

Rosario Applications, Ubuntu Laptops, Ubuntu

While using Empathy if you feel some problem, start empathy using the terminal and find the errors. Goto terminal, use

rosarioarun@ros-lap:~$ sudo empathy

Now you can find the errors displayed, try to fix the errors… If you dont get the call option in the context menu, try to solve the errors. Me getting the Call option in the context menu. or Mail me the errors we will try to find the solution.

Rosario Applications, Internet, Ubuntu Internet, Ubuntu

Here is my encounter with Virtual Box. You may download the iso file the operating system from internet, if you wish to boot them with out burning them to a cd or if you have your iso file in pendrive or external harddrive, and if you want to boot them from the drive directly, the answer is here.

Virtual box is a project developed by SUN. Download VirtualBox software from the link below, for your favourite operating system you are using and boot any operating system from any.

Here in my encounter, i have booted Ubuntu Ultimate Edition, that is as an downloaded ISO file in my home directory. Download the Virtual Box deb package from,

And then install it just by double clicking the deb file. You can start the Virtual Box software from the menu Applications->System Tools->Sun xVM Virtual Box. As Virtual Box requires some write permissions, its better to start in the command using su. So, move to the terminal and give the command

rosarioarun@ros-lap:~$ sudo VirtualBox

In the Virtual Box Window,

1. Click New Buttom, a Wizard appears
2. Click Next,
3. Type a Name you wish to give and select the OS u wish to boot (In my case name is Ultimate and type is Ubuntu) and click Next
4. Select the Base memory size, based on you the RAM u have, if you select more the Virtual box will boot the OS soon.(My case 900 MB) Click Next
5. Then click Next and in the confirmation Window Click Continue
6. Now Click Finish

Now the Virtual Box Main Window will appear back.

The ISO that i wish to boot is in the location

/home/rosarioarun/Desktop/ultimate-edition-1.8-x86/ultimate-edition-1.8-x86.iso

Click on the Name you just created (Ultimate) and click Start. Read the Capture info and click ok.A wizard will appear.

Virtual Box Software with Inserted Bootlist

1. Click Next
2. In the Media Source below, Select the path of the Image File  (In my case /home/rosarioarun/Desktop/ultimate-edition-1.8-x86/ultimate-edition-1.8-x86.iso)
3. Click Next and then Finish

The OS will be booted as a separate window, you can capture and uncapture to go inside and come out the new OS booted.

OR, Select the Name and click Settings,->CD/DVD-ROM-> ImageFile and select the Image file u wish to boot. And click Ok.

Now click Start to boot the new OS.

After Booting Ubuntu Ultimate

Inside Ultimate with VirtualBox

Rosario Applications, Ubuntu, Virtualisation Ubuntu, VirtualBox

Virtual Box is a community delovped project, by SUN for the purpose of OS Virtualisation. That is, any other operating systems can be booted inside other operating systems inside a virtualisation window. The Virtual box software will manage the resources required for the newly booted software and the currently running software. It will allocate the free resources within itself, to boot the new operating system virtually.

Presently, VirtualBox runs on Windows, Linux, Macintosh and OpenSolaris and many other guest operating systems. So this includes almost all most frequently used operating systems.

With Virtual box you can boot Guest operating systems in USB, Portable hard drive, or ISO images of operating systems in any host operating system. That is you can boot the downloaded iso images of opertaing systems(linux) in live -cd mode without burning them to a cd.

Rosario Applications, Ubuntu, Virtualisation Ubuntu, VirtualBox

Normally most the linux distros comes with gcj, which is a Java compiler for gnome. Most of the java programmers prefer only jdk. So how to compile and run a java program in linux. Download the latest jdk from the sun website. (jdk-1_5_0_16-linux-i586.bin  for a x86 system)

http://java.sun.com/javase/downloads/index_jdk5.jsp

And then to install jdk use the following

rosarioarun@ros-lap:~$ ./jdk-1_5_0_16-linux-i586.bin

This will extract the jdk and give an folder in current path as, jdk-1_5_0_16, this folder will have all bin, lib directories required by the javac compilation and execution.
All the contents inside this directory will be same as the conents when you install the jdk in the windows. You will have a question that, why not i use the extracted jdk folder in windows, in linux to compile the java program in linux.
Both the extracted jdk folders in windows and linux are not the same, the difference is the extracted contents in windows will have all exe file, where as in linux it will be binary files.
That is javac in windows will be javac.exe and in linux it will be javac.bin
Now to set the path proceed as below

rosarioarun@ros-lap:~$ PATH=$PATH:/home/rosarioarun/jdk1.5.0_16/bin/

this is just a single line script to set the path, you can view the PATH variable using echo

rosarioarun@ros-lap:~$ echo $PATH

/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/home/rosarioarun/jdk1.5.0_16/bin/

Now you can compile the java programs using javac and run them using java commands.

1. Compiling: $javac filename.java
2. Executing: $java filename

Rosario Applications, Ubuntu Java, Ubuntu

The most used IM client in Linux is Pidgin. But the problem with Pidgin is that doesnt support voice chat. Also the gtalk software is not available for linux. Its only available as exe that is supported only by Windows.

When i was chatting with my friend using pidgin and he was in gtalk, he called me for voice chat. But i couldnt. Googling this problem i found a solution. the solution is Empathy. Use Synaptic package manager, go to Settings->Repositories->Third Party Software and then click Add and add the following line

deb http://ppa.launchpad.net/telepathy/ubuntu hardy main

Then, Install the following packages using Synaptic Pagakage manager.

1. Empathy
2. telepathy-gabble
3. telepathy-mission-control
4. telepathy-stream-engine

After successful installation, open the Empathy application and use the menu, Edit->Accouts to add your gtalk account. Enjoy using voice chat with your favorite gtalk account using Empathy in Linux.

Empathy With my Gtalk account

Rosario Applications, Internet, Ubuntu Internet, Ubuntu

I had a chance of spending a day with 10 persons from Tanzania. An unforgettable day 25th July 2008. Had a wonderful time spending with them and taking them all around my native Kanyakumari.A day was not enough with them.

A special day

And In that team, Father Maina, Eric, And Frank were more interested in the way i was using Ubuntu(Hardy). Frank was more interested and wanted to intall Hardy in his New laptop(HP), which was preloaded with Vista. So i used a Hardy dvd, and booted the laptop in Live cd mode and used gparted(Gnome Partition Editor) to partion the hard drive into four partions…

He had a thought that its not possible to install other OS, with out complete formatting and partitioning the hard drive. (As there was no partition at all and Only C drive and it has Vista). He was worried that his Vista and Recovery part to go off… I took of all his worries about hin his lap…  I partitioned, Installed Ubuntu with no loss in Vista or recovery part… Hardy Live CD is more power ful, also gparted is fantastic. Partion your new laptops with out loss of any data with Ubuntu Live CDs. Happy that i imported the Power of ubuntu and linux to few people.

Rosario Ubuntu Life, Ubuntu