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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…
Cisco Routers
How To Configure Dynamic DNS Server On A Cisco Ro…
Hosting your own webserver or email server would normaly require a static IP address from your ISP. This ensures that your services are always reachable using the same IP address or domain name.
If…
Ethernet Protocol, CSMA/CD, Collisions
Propagation Delay
You may know that the minimum frame size in an Ethernet network is 64 bytes or 512 bits, including the 32 bit CRC. You may also know that the maximum length of an Ethernet cable segment is 500 meters…
Domain Name System (DNS)
The DNS Protocol - Part 2: DNS Queries & Resoluti…
This section will help you understand how the DNS queries work on the Internet and your home network. There are two ways to use the domain name system in order to resolve a host or domain name to an…
Security Service Edge (SSE)
Security Service Edge (SSE) Limitations & Disadva…
This article explores the Security Service Edge (SSE) portion of Secure Access Service Edge (SASE) and the need for holistic cybersecurity protections.
We lightly touch upon the drivers for tighter…
Linux - Unix
Configuring Linux to Act as a Firewall - Linux IP…
What exactly is a firewall? As in the non-computer world, a firewall acts as a physical barrier to prevent fires from spreading. In the computer world too, the firewall acts in a similar manner, only…
Windows Workstations (XP, 7, 8, 10, 11)
The Importance of Windows Hosts File - How to Use…
This article explains how the Windows operating system makes use of the popular Host file, where it is located for various operating systems, how it can be used to manipulate DNS lookups and redirect…
VLAN Networks
VTP Pruning
VTP (VLAN Trunking Protocol) pruning is a feature that is used in Cisco switches to reduce unnecessary traffic in VLAN (Virtual Local Area Network) trunks. When VTP pruning is enabled on a trunk, the…
Windows Servers
Configuring Domain Group Policy for Windows 2003
Windows 2003 Group Policies allow the administrators to manage a group of people accessing a resource efficiently. The group policies can be used to control both the users and computers.
They give b…
Network Fundamentals
Need for Speed – The Data Tsunami & Advancements…
A long-long time ago (not long ago in earth time) 100 Mbps was THE technology. 100 Mbps uplinks bundled with ether-channel was the ultimate uplink technology. This was the prevailing technology durin…
ICMP Protocol
ICMP Protocol - Part 1: Introduction
The Internet Control Message Protocol (ICMP), is a very popular protocol and actually part of an Internet Protocol (IP) implementation. Because IP wasn't designed to be absolutely reliable, ICMP came…
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…
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