Linux, Windows, Security, Programming, Network Tutorials
The Internet is the most popular technology term known by billions of people around the world. What makes is the most popular is its usage, access range, abilities, and new opportunities. Internet the core of everyday life like a government, bank, etc. But who invented the internet? What Is Internet? Before answering our questions we … Read more
Open Systems Interconnection Model or OSI Model is an architecture to specify computer networks functions in a clear and compatible way. OSI provides interoperability of diverse communication systems with standard communication and transmission architecture, layers, and protocols. OSI History In the early- and mid- 1970s the computer networks largely owned and operated by the governments … Read more
Windows operating system uses Winsock technology in order to maintain network and internet communication and connection. During the usage of the Winsock especially in heavy usage, it may create network and internet connection problems because of the crash. In this tutorial, we will learn how to reset the network adaptor and TCP/IP network stack via … Read more
Internet Protocol or IP is designed to create a worldwide network to connect every computer to each other. OSI reference model creates a model where different protocols and networks can be defined and IP is used for the Network layer. There are two main versions of the IP protocol named IPv4 and IPv6. We will … Read more
Packet Sniffing is the process to capture packets. Generally, computer network packets are sniffed. Packet sniffing may seem very simple but in reality, it provides a lot of complexity related to the protocols, network mediums, etc. Packet Capture or Packet Sniffing Before starting to learn what is packet sniffing we have to learn the difference … Read more
Today Firewall is depicted as the main component of the security and networks. Firewalls provide a lot of different operations and features. In the old days, the firewall was simply used to block or allow some ports and management of the NAT. These days there are a lot of different threats where the firewall is … Read more
IP addresses are the core mechanism of Computer networks. The IP address is used to specify the host to communicate and transmit data. There are two types of IP address configuration mechanism. Dynamic and Static. In this tutorial, we will examine the static IP address configuration. Static IP Address Static means stable or not changeable, fixed, etc. … Read more
Google is a huge company that provides paid and free services. It mainly operates in the IT and internet area. The Internet uses DNS in order to solve domain names into IP addresses. Because internet infrastructure works with IP addresses. Google provides free DNS servers that can be used for fast and free domain resolution. … Read more
DNS is used to translate between a human-readable name like poftut.com and IP address like 45.79.1333.118. DNS can use both UDP and TCP protocols but generally, UDP protocol is preferred. In this tutorial, we will learn how to flush, clear the DNS cache with ipconfig /flushdns command. This tutorial can be applied to the All … Read more
Internet and most of the network infrastructures uses IP Protocol. IP protocol uses IP addresses in order to connect different hosts and networks over globe. Classless Inter Domain Routing or CIDR is hierarchical IP addressing scheme used to set IP addresses to the hosts and network. Here we will learn how to calculate IP address, … Read more