Category Archives: online security

Understanding Wireless Principles.

In our interconnected world, wireless networking is crucial for seamless communication between devices. For Cisco CCNA candidates, mastering wireless principles is vital for understanding network design, security, and management. On this page we explore essential wireless concepts, including nonoverlapping Wi-Fi channels, SSID, encryption, and the basics of virtualization, particularly virtual machines. I. Nonoverlapping Wi-Fi Channels Wi-Fi networks operate… Read More »

How To Choose and Secure Your Password.

Security password policies are essential components of an organization’s cybersecurity strategy. These policies help ensure that passwords are strong, frequently changed, and managed effectively. In addition, they incorporate alternatives to traditional passwords, such as multifactor authentication, certificates, and biometrics, to enhance security. This blog post delves into the elements of security password policies, including management, complexity, and password… Read More »

Key Security Concepts: Threats, Vulnerabilities, Exploits, and Mitigation Techniques.

In the domain of cybersecurity, understanding key concepts such as threats, vulnerabilities, exploits, and mitigation techniques is essential. These terms form the backbone of how we approach and handle security in any digital environment. This blog post will provide a comprehensive and technical overview of these fundamental concepts. 1. Threats A threat is any circumstance or event with… Read More »

How To Control Password Attacks with ACLs on Cisco Router.

Network devices are susceptible to unauthorized login attempts by attackers seeking access. Cisco’s IOS offers a solution by introducing ACLs, which can block an attacker from even receiving a prompt to enter a password. This is achieved when an external user attempts to connect through Telnet or SSH. In these instances, IOS represents this connection using a vty… Read More »

Understanding Man in the Middle Attacks. Explained with Examples.

What is a Man in the Middle Attack? A man-in-the-middle (MITM) attack is carried out by intruders who successfully position themselves between two legitimate hosts. The attacker can enable normal communication between hosts while altering the conversation between them. The attacker can intercept and modify data exchanged between the two hosts, allowing them to steal sensitive information such… Read More »