Wellcome back to my blog

It has been for a while that I didn't take a look at my blog or to write down my mind and my ideas.
I think it's time for me to talk more through this blog.

I've just tought my colleague about networking. It's about TCP/IP. To convert a decimal value to binary value. I know that he eager to know more about networking. Let's do it step by step (as usuall). First, he must know about the fundamental of networking. And then seven layers of OSI model and DoD model (well known as TCP/IP model).
Anyway, this morning he asked me to teach him about TCP/IP. When I told him about the power of two, he got stunned..!! Well take it or leave it. It's enough for him just study the base number 2 raised to exponent. Later I will take him to know more deeply about subnet mask and subnetting, VLSM and to understand what is CIDR.