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Windows Workstations (XP, 7, 8, 10, 11)

Configure Windows 8 & 8.1 To Provide Secure Wirel…

Windows 8 and Windows 8.1 (including Professional edition) operating systems provide the ability to turn your workstation or laptop into a secure wireless access point, allowing wireless clients (inc…

Ethernet Protocol, CSMA/CD, Collisions

Troubleshooting techniques for Fast Ethernet

This page will primarily discuss problems unique to Fast Ethernet. The Collision Domain Incompatible Ethernet Jabber Auto-negotiation Priorities And Alternatives Incompatible Cabling Specificat…

Network Fundamentals

Introduction to Content Switching - Application &…

Content switches (also sometimes called application switches) is a class of network device that is becoming increasingly common in medium to large sized data centres and web-facing infrastructures…

Windows Servers

The Importance of a Hyper-V & VMware Server Backu…

Using Hyper-V Server virtualization technology, you can virtualize your physical environment to reduce the cost of physical hardware. As part of IT best practices, you implement monitoring solutions…

Cisco Switches

VLAN Security Tips - Best Practices

This article focuses on VLAN Security and its implementation within the business network environment. We provide tips and Cisco CLI commands that will help you upgrade your VLAN network security. Ev…

Cisco Switches

Cisco Catalyst 4500 Series Zero-Downtime IOS Upgr…

The Supervisor Engine is the heart of the Cisco Catalyst 4500 and 6500 series switches. It is the equivalent of an engine in a car. Every packet that enters or exits your switch passes through the Su…

Windows Servers

Creating Windows Users and Groups with Windows 20…

In a Windows server environment, it is very important that only authenticated users are allowed to log in for security reasons. To fulfill this requirement the creation of User accounts and Groups is…

Cisco Wireless

Cisco Aironet 1100 & 1200 Series (1110, 1121, 114…

Resetting a Cisco Aironet access point can be required if you’ve lost your password or need to wipe out the configuration of a previously configured access point. Cisco provides two main methods to p…

Network Protocols

Understanding VPN IPSec Tunnel Mode and IPSec Tra…

IPSec’s protocol objective is to provide security services for IP packets such as encrypting sensitive data, authentication, protection against replay and data confidentiality. As outlined in our IP…

VLAN Networks

VTP Protocol - In-Depth Analysis

The previous article introduced the VTP protocol, we examined how it can be used within a network, to help manage VLANs and ease the administrative overhead, providing a stress-free VLAN environment…

Linux - Unix

Implementing Virtual Servers and Load Balancing C…

What is Server Virtualization? Server virtualization is the process of apportioning a physical server into several smaller virtual servers. During server virtualization, the resources of the ser…

Web Application Vulnerability Scanners

Creating a Cross-site Scripting (XSS) Attack. Und…

Part two of our Cross-site scripting (XSS) series shows how easy it is to create & execute a XSS attack, helping readers & network security engineers understand how XSS attacks work and how t…