Wordpress Installation guide for Ubuntu 10.04/Mint isadora Linux(part 2):

According to wikipedia.org:

“WordPress is an open source CMS, often used as a blog publishing application powered by PHP and MySQL. It has many features including a plugin architecture and a templating system. Used by over 12% of the 1,000,000 biggest websites, WordPress is the most popular CMS in use today.”

                                                     (source: http://en.wikipedia.org/wiki/WordPress)

For more information on wordpress visit wordpress.org.

Installation:

First download wordpress-3.0.1.tar.gz from wordpress.org and extract it using archive manager to your desktop,now open your terminal and use the following commands to copy extracted folder from desktop to your web document root folder (see part 1 for web document root directory).

Wordpress installation guide for ubuntu 10.04 /Mint Isadora Linux(part 1):

This installation guide has two parts, this part contains instructions for installing the prerequisites: Apache,MySql,php5 and phpmyadmin.

Installing apache:

#sudo apt-get install apache2

To ensure correct installation point your browser to http://localhost/ and press enter, you will see “it works” in your browser window.

Virtual Box Guest Additions on Fedora 13 installation guide:

Before installing guest additions on fedora 13 make sure that following packages are installed on your fedora 13 virtual machine.

1. make
2. automake
3. gcc
4. gcc-c++
5. dkms
6. kernel-headers
7. kernel-devel

you can inquire your system for above packages using this command:

Virtual Box Bridged Networking:

Bridged Networking:

In bridged networking Virtual box uses a software driver interface on the host machine that enables the virtual machines to get their IP addresses from the same source to which the physical interface of the host system is connected. When connected this way guest machines see themselves as they are physically connected to the host through a wired connection.

Recovering Grub 2 using Ubuntu/Mint Live CD:

Most Linux distributions use Grub as default boot manager/boot loader, when we install Linux it changes the MBR(master boot record) by writing a small piece of code so that it can point to the Grub files installed inside the /boot/grub directory.
In some cases, like in a dual-boot system having both Linux and Windows, reinstalling windows overwrites the MBR, and Linux becomes no longer boot-able. To boot again into Linux we need to recover the lost link to Grub.
Here is a method for recovering Grub using Ubuntu 10.04 live CD and is only applicable to Grub version 2.

Linux Mint Isadora on Virtual Box installation with guest additions:

About Virtual Box and Virtual Machines:
Virtual box is a virtualization software that provides a lot of features and support for creation and installation of virtual machines .A virtual machine in every aspect is comparable to your real hardware compartment(cpu box) ,the only difference is that you just can't touch it.
In simpler words it has its own RAM ,Hard Disk,Network cards,Video capabilities ,Audio ,and processing . Actually it is an abstract layer of hardware provided by a virtuallization software, so when we run an operating system inside a virtual machine it only sees this layer as its hardware regardless of what your real hardware is.

Building Rounded corner boxes with shadows using CSS3:

With CSS3 now its easier to present the web content in more fascinating ways with less effort,the newer version includes a lot of new properties like border-radius ,text-shadow ,box-shadow,box-sizing and resizing ,word wrap and new attribute selectors etc.for more information you can visit www.w3c.org.
Here is a little example of rounded corner box with shadows :

CSS3 Rocks

How to Add and Set Custom Display Resolutions using xrandr Command on ubuntu 10.04 (lucid lynx) Linux

You can change your monitor's display resolution from system->preferences->monitors,but in some cases Linux fails to detect the proper resolutions for your monitor,in such situations we can add and set custom resolutions with a little effort by using xrandr command.

As it is said in the man pages:

     “ Xrandr  is  used  to set the size, orientation and/or reflection of the
        outputs for a screen. It can also set the screen size.

        If invoked without any option, it will dump the state of  the  outputs,
        showing  the existing modes for each of them, with a '+' after the pre‐
        ferred mode and a '*' after the current mode.......”

How to set up multiple workspaces on Windows xp ,vista and 7 using Nvidia nView:

You can set multiple desktops or workspaces on windows very easily in some simple steps if you have nvidia card installed on you computer systems . Here i am going to show you how will you do this.


Requirements :

1)Suitable drivers for your card
2)nView desktop manager utility

Now go to control panal->NVIDIA nView Desktop Manager

Vim Editor For Beginners : Commands and Things you should Know about VIM

A Brief History:

When UNIX was developed and emerged at Bell Laboratories in 70's,The initial version of UNIX that was distributed had a line editor called as 'ed'  developed by Ken Thomson,'ed' was considered very difficult to use ,many people tried to enhance the functionality of 'ed' and an enhanced version of 'ed' was developed by George Coulouris and named it as 'em' .After some time Bill Joy a student at Berkeley merged various features of 'ed' and 'em' and produced a new version called as 'ex'. Though 'ex' had many combined features of 'ed' and 'em' it was still a line editor, then in 1976 'vi' was developed and it was a rewritten version of 'ex' .Vi was not a line editor like 'ed' or 'em'  it was a screen editor and had many features  of 'ex'.Vim is now improved version of Vi.

Vim as a modal editor:

Vim is known as a modal editor which means Vim will perform certain operations depending on the mode in which it is currently set. Three modes are most important to understand the working of vim.
Command mode,Insert mode and Command-line mode.

Installing Nvidia Drivers On Ubuntu 10.04(Lucid Lynx):

Last week I bought a nvidia graphics card (geforce gt 240) for watching HD movies and casual gaming as i spent my spare time playing games like call of duty,crysis etc.

Now to be specific I found It very easy to install nvidia drivers on my PC running ubuntu 10.04 so I decided to share my experience with you. I am assuming that you have a working internet connection.

First of all make sure that you are fulfilling all requirements like,minimum power supply as recommended by nvidia for your card ,and your card is properly inserted to the required slot I.e PCI Express. 

Cool 3D Desktop Effects on Ubuntu 10.04 (LTS) using Compiz and Compiz-fusion:

By default ubuntu uses metacity as its default windowing manager that provides us with some lighter and smoother Desktop effects, but  when it comes to real 3D support for the Desktop Environment compiz has much more support as compared to the metacity .

Ubuntu comes with the compiz installed by default on it all we need is to turn it on .

Understanding X Window System and Desktop Environment of Linux

In this post I will try to explain you how a Linux Desktop Environment works, and I hope after going through this post you will have a batter understanding of the mechanism used by the Linux Systems.

To achieve a full fledge Desktop, Linux systems use following  major components :

1)    X Windowing System
2)    A Desktop Manager
3)    A Windowing Manager

Now lets have a step by step look on each of the above components.

X window System :

X window system (also know as X) was developed in 1980s at MIT by researchers working on a distributed computing project , and was the first windowing system for UNIX that was widely adopted and accepted. X window system was built to work over the network where other computers can communicate with each other and remote applications can receive and send information to other client applications on the network using X protocols .