Articles That Might Interest:

ICMP Protocol

ICMP Protocol - Part 2: Echo / Echo Reply (Ping)…

As mentioned in the previous page, an Echo is simply what we networking engineers call a 'ping'. The Echo Reply is, as most would guess, the 'ping reply'. ICMP Echos are used mostly for trouble…

SASE & SD-WAN Networks

MPLS vs. SD-WAN vs. Internet vs. Cloud Network. C…

The Wide Area Network (WAN) is the backbone of the business. It ties together the remote locations, headquarters and data centers into an integrated network. Yet, the role of the WAN has evolved in r…

Cisco CallManager-CCME

IP Phone 7900 Series (7940, 7941, 7942, 7960, 796…

This article explains how to reset your Cisco 7940, 7941, 7942, 7960, 7961, 7962 & 7920 IP phone to factory defaults, and how to upgrade its firmware to the latest available version. When initia…

Cisco Switches

Installation and Setup of Cisco SG500-52P - 500 S…

The SG500 series Cisco switches are the next step up from the already popular SG300 Layer-3 switches. Cisco introduced the SG Small Business series switches to compete against DELL’s and HP’s offerin…

Cisco Routers

Cisco Router Basics

This article will focus on Cisco's routers which can be found in almost any organization due to their popularity and market penetration. Cisco has a number of different routers, amongst them are the…

Windows Servers

Renaming Windows 2000 Domain Name

Sometimes renaming a domain is an essential business requirement. There are many situations, such as mergers, change of company name or migration from a test environment to a production environment…

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

How to View Hidden Files and Folders In Windows 8…

Windows 8 & 8.1 hides two types of files so that normally, you do not see them while exploring your computer. The first type is the files or folders with their 'H' attribute set to make them hidd…

Network Protocol Analyzers

How to Detect SYN Flood Attacks with Capsa Networ…

This article explains how to detect a SYN Flood Attack using an advanced protocol analyser like Colasoft Capsa. We’ll show you how to identify and inspect abnormal traffic spikes, drill into captured…

IP Protocol

IP Protocol - Part 3: IP Classes, Network & Host…

This article explains the 'Network-ID' and 'Host-ID' concept found in IP addressing and subnetting. We analyse the structure of IP addresses and network classes and show their Network-IDs and Host-ID…

Palo Alto Networks

Introduction to Palo Alto Next-Generation Network…

During the past decade, we’ve seen the global IT security market flooded with new network security and firewall security appliances. New vendors emerging into the market while existing well-known ven…

Cisco Data Center (Nexus/UCS)

Introduction to Cisco Nexus Switches – Nexus Prod…

This article introduces the Cisco Nexus product family (Nexus 9000, Nexus 7000, Nexus 5000, Nexus 3000, Nexus 2000, Nexus 1000V and MDS 9000). We explain the differences between Nexus and Catalyst sw…

Network Fundamentals

Media Access Control - MAC Addresses

A MAC address, or Media Access Control address, is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. It i…