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What Are the 7 Layers of OSI Model and How Do They Work
The OSI Model stands for Open Systems Interconnection Model, a conceptualized framework used to describe the seven layers of a telecommunication system or network. It was established as an international standard in the year 1984 by the International Organization for Standardization. This model helps visualize how networks operate and is still used today to figure out and solve network problems, such as by a web development company. In this article, we will talk about the 7 layers of the OSI Model and how each of them work. Layer 1 – Physical Layer The physical layer concerns the part of the model used for transmitting raw data bits (0s and 1s) across the network between sending and receiving devices. This can be through a physical cable or even a wireless connection between physical nodes. The physical layer can also represent voltages, frequencies, pin layouts, and other things. Any other physical devices part of this transmission, like hubs and modems, are also included. Ethernet, USB, Bluetooth, IEEE 802.11 etc. protocols work on Physical Layer. Layer 2 – Data Link Layer The data link layer is in charge of establishing or eliminating a connection between physical nodes that may be connected through a [...]
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Computer Networking Basics | February 10, 2017
Computer networking is a buzzword to the present world. By the virtue of computer networking, the world has become just like a village. So, anyone of the world can communicate with any person of the world within seconds as if they are living in a village. Computer networking does not mean a single element. A lot of networking elements and protocol work behind a computer networking. So, the computer guys who are interested to learn how computer networking works should [...]
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Unlocking Digital Opportunities: A Beginner’s Guide to Computer Networking | October 14, 2025
Summary Computer networking has created the digital world, enabling communication networks that unite various regions of the world and connect any device in some way or another. Networking provides new opportunities to secure employment, act as freelance workers, or even pursue volunteer work, which is why it is worth investing in for career development. Being practical should be valued even more than theory. Even after setting up a home lab, reviewing real projects, and consulting trusted sources, you will learn [...]
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MikroTik VPN Configuration with Site-to-Site PPTP | February 19, 2018
VPN (Virtual Private Network) is a technology that provides a secure and encrypted tunnel across a public network and using this VPN tunnel a private network user can send and receive data to any remote private network as if his/her network device was directly connected to that private network. MikroTik PPTP is a popular client-server VPN service that provides a secure and encrypted link across public network. MikroTik PPTP can be applied in two methods. Connecting remote workstation/client: In this [...]
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MikroTik VLAN and Bridge Configuration | September 19, 2017
VLAN and Bridge are two useful features in MikroTik Router. These two features are frequently used in any MikroTik network configuration. VLAN divides a physical interface into multiple logical interfaces. So, you can isolate your network into multiple logical networks on a physical interface. On other hand, MikroTik Bridge integrates multiple physical interfaces in a logical interface. So, you can extend your broadcast domain on multiple physical interfaces and can extend your popular services such as PPPoE or DHCP on [...]
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Single IP NAT Strategy in MikroTik RouterOS 7 | September 29, 2015
MikroTik Router has a lot of features which help to customize network as our requirement. Sometimes, it may be our requirement that we need to allow internet access on per IP. Normally, when we apply masquerade NAT rule in our MikroTik Router, all private IPs will be masqueraded or a network block will be masqueraded. If we do normal masqurade and enable a DHCP Server in our network, we may face a lot of unauthorized access in our network. Because [...]
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CentOS 7.5 Installation with GUI and LVM Partition | March 7, 2019
Red Hat/CentOS Linux is a popular server operating system. Specially who work on mail server, web server, web proxy server, ftp server and file server are so familiar with the Red Hat/CentOS Linux. In my previous article, I discussed how to install CentOS 7.5 Linux step by step with the standard partition. But if you want to work on mail server, web proxy server, ftp server, file server or any other application where disk space changes frequently, the standard partitioning [...]
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Turn Computer into Wi-Fi Hotspot | September 17, 2015
Internet Connection Sharing is an awesome feature in windows operating system. Using this feature, you can turn your computer which has wireless network card integrated into Wi-Fi hotspot and share your internet connection with your friends or family members. Generally, each laptop has a wireless network card integrated by default. So, if you are a laptop user, you can turn your laptop into Wi-Fi hotspot so easily. If you are a Desktop user, you can also turn your desktop as [...]
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MikroTik Configuration with PPPoE WAN Connection | July 18, 2018
MikroTik Router is a popular routing device to any network administrator because of having a lot of network features availability. MikroTik PPPoE Client is a special feature that is used to connect any PPPoE Server. If your ISP provides PPPoE connection, MikroTik Router is able to connect that PPPoE Server using PPPoE Client. In my previous article, I discussed how to configure MikroTik Router with static WAN connection and in this article I will show how to configure MikroTik Router [...]
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Network Bandwidth and Throughput | February 17, 2017
Bandwidth and Throughput are two important basic networking terms in computer network. If you wish to be an expert network administrator, you must have better understanding about these two networking terms. As a network user, you should also have better understanding about network bandwidth and throughput so that you can get maximum output from your network service provider. In this article, I will explain about network bandwidth and throughput from very beginning. I hope, this article will enrich your networking [...]
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