Knowledge Base

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Networking and cyber security technologies

Here you will find articles in the areas on network design, network analysis, cellular and wireless networks, IP technologies, network security and more.

Introduction One of the most important and most frequently overlooked topics in IT planning is cost, specifically how to pay for exactly what you need and nothing more. The subject

Data Network Design and Information Security Planning

Introduction Over many years of designing communication networks and network security architectures, I have consistently found that a structured, methodical planning process is the single most important factor in project

Data Networks Design

This article outlines the essential stages of communication network design, covering how to define requirements, design network architecture, and detail each step for effective project management.

Analysing Suspicious Traffic Patterns

In this article, we talk about traffic patterns and how to discover suspicious patterns, explaining he should "good" traffic patterns and how to identify patterns that should be carefully checked.

What are TCP Resets?

In this article, we talk about TCP Resets, why they happen, what is considered to be "normal" behavior and what is an indication of a potential problem.

TCP Retransmissions

In this article, we talk about TCP retransmission types, what they indicate, and whether they are a problem or normal network behavior.

TCP Zero Window

Here we talk about the TCP sliding window mechanism, Zero-Window and Window-Full symptoms, what we can learn from them, and when and why they indicate slowness problems.

Wireless Networks and Wi-Fi 6

In this article, we talk about the principles and operation of wireless networks, with emphasis on the new WiFi-6 (802.11ax) standards, along with design and implementation guidelines.

IoT Networking

In this article, we talk about communications protocols and methods used in IoT networks, including Wi-Fi and cellular implementations, LoRa and LoRaWAN, 802.15.4, ZigBee, and more.

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