Introduction: Bangladesh has got its independence in 1971. 42 years have passed and its population is growing from 3.7642 billion to 7.0439 billion. We have improved our life style by urbanization and agricultural success with industrialization. But people of Bangladesh are city-centric.

Drawing an Involute Curve is a tough one to draw. I will give you tips to draw easily. Involute is very important in Gear industry.

By definition, the first two Fibonacci numbers are 0 and 1, and each subsequent number is the sum of the previous two. I will show you two shell script to generate Fibonacci series recursively and iteratively. Also you will get idea about the application of Fibonacci series/numbers.

rsync is a free software computer program for Unix and Linux like systems which synchronizes files and directories from one location to another while minimizing data transfer using delta encoding when appropriate. An important feature of rsync not found in most similar programs/protocols is that the mirroring takes place with only one transmission in each direction. This tool is very appropriate to keep backup or setup mirror service. In this article you will get some clear idea.

Apache is the most used server. It is used to serve more than half of all active websites. It will be very helpful to understand Apache. Understanding the configuration of virtual host of Apache is important as sometime it will be a tough job to do. I will show you how to set default folder of a website other than root directory of Apache.

I have normally worked with linux servers but sometimes i used Windows too. I have faced password forgetting moments and then after searching and trying i have got the solution to reset Windows Server 2008 R2.

Lubuntu is good. Actually LXDE is good. I love its simplicity. One tricky thing is though how to add a keyboard layout on Lubuntu/LXDE (if you didn’t specify an additional language at installation).  To configure keyboard layouts a big flaw of LXDE. So here is what I did to add a new keyboard layout.

If you have linux server or linux operating system(distribution) in your pc then you are using bash. Bash is a command processor and Unix Shell, typically run in a text window, allowing the user to type commands which cause actions. Bash can also read commands from a file, called a script. Bash keep records of executing commands and all. Sometimes if you want to clean all your records you can follow this.

Me and also many people use WordPress to run website or blog. What is the most fascinating thing of WordPress ? Obviously its resources. It has so many plugins and themes that can make a simple WordPress website act like a super-platform. I am here to show you how to remove little smiley face on the bottom of Wordpres sites.