Let us discuss these topic. These are the sequence order we will follow before we will understand how DNS resolution happens. Again, the information that is shared in this page, consider it to be at beginner level. Zone file:Well zone files are a text file that is neither encoded nor…

Personally, I consider this topic as one of those topics which are very essential not only to understand the computer networking but also in your daily IT related task. The concept will come in handy even you are able to complete the part 1 of this document. It will build…

We shall now discuss about packet flow between two different machines hosted behind two different routers which are acting as a gateway for the local machine in each respective region (Region 1 and Region 2).The local machine connects to layer 2 switch first and the switch has a connection to…

In our previous section we saw how the traffic flows between two different machines which were in the same network address. We only saw how MAC address gets exchanged within the same network. Now we will discuss about packet flow in a network topology within a single broadcast domain and…

Let’s discuss in general on how a packet from a source machine flows to the destination machine (for now we are not considering any switch or router in between). The packet details are not shown under this topic. 1) A user machine maintains two types of tables: a)Network Table and…

In my previous discussions, I mentioned about a layer 2 switch being a single broadcast domain and multiple collision domain whereas a Layer 3 switch or a router is a multiple broadcast domain and multiple collision domain. So here we will learn about little bit about both these terms and…

Well, I consider this is an important step that all our network engineer or IT professionals must be aware of. Why do you think? Let us say it is one of the steps to look in troubleshooting a network connection scenario.In a TCP handshake process, we will look into few…

I have shared a small brief of categories for networking protocols based on OSI model reference. This is not the only list rather it is just a scratch on the surface. But this will help you in troubleshooting a networking component or any application. SSL/TLS handle encryption, compression and encoding.…

OSI Model: This is a conceptual model which was published in the year 1984 by ISO (International Organization for Standardization) to establish a standard for network design and other related compute/hardware equipments. OSI stands for Open Systems Interconnection Model. In modern times, OSI model is only used for references. A…