Posts about theory of networks, network equipment, network configuration, troubleshooting network issues
Routers are the silent architects behind the seamless flow of data in the complex world of networking. In this blog post, we will embark on a journey to uncover the importance of a router in networking. We’ll explore how routers align with the OSI model, demystify the routing process, draw parallels between routing and the…
In the realm of networking, uptime is the holy grail. Downtime can result in significant financial losses, damage to reputation, and frustrated end-users. To ensure maximum network availability and minimize the risk of disruption, network architects and engineers implement redundancy. Redundancy, in the context of networking, refers to the practice of building multiple, often parallel,…
Introduction Unusual traffic from your computer network can be a sign of various issues, such as a malware infection, a misconfigured device, a hardware issue, or even a sign that your network is being used for malicious activities. Resolving this issue is crucial to maintaining the security and performance of your network. Here’s how you…
Introduction Are you intrigued by the world of ethical hacking but unsure where to start? You’re not alone. Becoming an ethical hacker is an exciting journey that requires dedication, perseverance, and the right resources. This guide will walk you through a step-by-step roadmap to help you become a proficient ethical hacker, all for free! Developing…
Logical Link Control (LLC) is a sublayer of the Data Link Layer in the Open Systems Interconnection (OSI) model. It provides a service interface between the Media Access Control (MAC) sublayer and the Network Layer. LLC Functions: The LLC sublayer is responsible for several functions, including: Multiplexing and demultiplexing – Multiplexing is the process of…
Servers are computers that manage and store information for other devices on a network. Their workloads can define them, such as web servers, mail servers, DNS servers, Proxy servers, database servers… Some servers are physical, while others are virtual, meaning they run on software rather than hardware. Physical Servers vs Virtual Servers There are mainly…
SecureCRT is a popular SSH client used by network engineers and system administrators to manage network devices (switch, router, …) and servers securely. However, it is commercial software that requires a license to use. You are in the right place if you are looking for free alternatives to SecureCRT. In this post, we will discuss…
When securing your computer network, using a software firewall is an essential step. A software firewall is a program that monitors and controls the incoming and outgoing network traffic based on predetermined security rules. It helps prevent unauthorized access and protects your system from malware and cyber-attacks. In this article, we’ll take a look at…
Every device connected to a network has a unique identifier called an IP address. The IP address is used for addressing at the Network layer of the OSI model (internet level of the TCP/IP architecture). It is a unique address of every device connected to the network, more precisely, every network interface on the network….
In this article, we present the 5 best bandwidth monitoring tools for Windows that are specifically designed for network engineers. Bandwidth monitoring is an essential aspect of network administration and management. It helps in tracking the usage of bandwidth and optimizes the network’s performance. The information obtained from bandwidth monitoring can help identify the cause…