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Network Fundamentals

Network Data Transmission

Network data transmission refers to the process of sending and receiving information between two or more devices connected to a network. It is a critical aspect of modern-day networking, and it enabl…

Windows Servers

Windows Server 2016 Licensing Made Easy – Underst…

This article describes the new Windows Server 2016 Licensing model (per-core licensing) Microsoft has implemented for its new server-based operating system. While the Windows Server 2012 Licensing mo…

Windows Servers

How to Easily Change Network Card Profile / Netwo…

Network Location Awareness (NLA) is a feature offered on Windows Server 2012 R2 and all Windows workstation editions from Windows 8.1 and above, including Windows 10. When connecting to a network (LA…

ICMP Protocol

ICMP Protocol - Part 4: Destination Unreachable M…

The 'ICMP Destination unreachable' message is quite interesting, because it doesn't actually contain one message, but infact six! This means that the ICMP Destination unreachable futher breaks down i…

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…

Ethernet Protocol, CSMA/CD, Collisions

The Ethernet II Frame Format

The following is a description of the frame format described by the original Ethernet Version II specification as released by DEC, Intel, and Xerox. Like the 802.3 spec, the Version II spec defines a…

ManageEngine Firewall Analyzer

Achieving Modern Compliance: Navigate PCI DSS v4…

In an era where cyber threats are growing in both volume and sophistication, failing to meet security compliance standards is no longer just a legal issue—it’s a business risk with potentially catast…

ManageEngine

Artificial Intelligence For IT Operations (AIOps)…

In the rapidly evolving landscape of IT operations, organizations are increasingly turning to Artificial Intelligence for IT Operations (AIOps) to streamline their processes, enhance efficiency, and…

Cisco Routers

Cisco Router 'Privileged' Mode

To get into Privileged Mode we enter the "Enable" command from User Exec Mode. If set, the router will prompt you for a password. Once in Privileged Mode, you will notice the prompt changes from ">…

VLAN Networks

VLANs - Access & Trunk Links

If you've read our previous article The VLAN Concept - Introduction to VLANs then you should feel comfortable with terms such as 'VLAN', 'Static & Dynamic VLANs', however this is just…

Routing

Link State Routing Protocols

Link State routing protocols do not view networks in terms of adjacent routers and hop counts, but they build a comprehensive view of the overall network which fully describes the all possible routes…

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…