Category Archives: online security

Understanding Network Trust Exploitation Attack.

What is a Trust Exploitation Attack? A Trust Exploitation Attack is a type of network security threat where an attacker takes advantage of a relationship of trust within or between computer systems. In such attacks, the attacker leverages the legitimate, trusted relationships to avoid security controls, gain unauthorized access, or perform malicious activities. This concept is important in… Read More »

What is Firewall? Explained with Examples.

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on defined security rules. Acting as a barrier between a trusted network and untrusted networks, such as the Internet, a firewall can be hardware, software, or a combination of both. Let’s delve into the key aspects of firewalls: Primary Function: Traffic… Read More »

VPN Technology Explained with Examples.

What is a Virtual Private Network? A Virtual Private Network (VPN) is a technology that creates a secure and encrypted connection over a less secure network, mainly the internet. It is widely used for various purposes, including enhancing security, privacy, and enabling remote access to network resources. Here’s a detailed overview: Fundamental Concept: Encrypted Connection: A VPN encrypts… Read More »

Troubleshooting InterVLAN Routing.

How To Troubleshoot InterVLAN Routing. What is Inter-VLAN Routing? Inter-VLAN routing involves routing network traffic between various VLANs (Virtual Local Area Networks). VLANs are utilized to divide a larger network into smaller, isolated networks to enhance security, improve traffic management, and boost performance. In order for devices in different VLANs to communicate with each other, a router or… Read More »

Troubleshooting VTP: Server as Client error and Solution.

Error Setting Server Switch as VTP Client Solution. Mistake happens,  As a network administrator, you can mistakenly configure the operating mode of the server switch as a VTP client. Only Server switches can create, delete, and modify VLANs. By reconfiguring the sever switch to VTP client mode, you lose all ability to create, delete, and manage VLANs within your network… Read More »