Articles That Might Interest:

VLAN Networks

VTP Introduction & Modes

The invention of VLANs was very much welcomed by all engineers and administrators, allowing them to extend, redesign and segment their existing network with minimal costs, while at the same time maki…

ManageEngine Firewall Analyzer

Ensuring Compliance and Business Continuity in a…

In the wake of digital transformation, the work landscape as we know it has undergone a dynamic shift. People can now work from home, from the office, or anywhere with a stable internet connection. L…

Cisco Routers

How To Configure ISDN Internet Dialup On A Cisco…

Some time ago, when broadband and ADSL wasn't available, analog and digital (ISDN) modems were the only way to connect to the Internet. Even though today ISDN isn't used much for Internet connectivit…

Web Application Vulnerability Scanners

Precision Web Application Vulnerability Scanning…

There are two primary approaches to web application security testing. Dynamic Application Security Testing (DAST), also called black box testing, imitates an attacker. The application is tested from…

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…

Network Protocols

IPv6 - Analysing the IPv6 Protocol Structure and…

As discussed in the previous tutorial, we were made painfully aware that we were running out of IP address spaces and literally did in 2011. A new proposal or RFC was released for creation of a new…

Web Application Vulnerability Scanners

Web Application Vulnerabilities – Benefits of Aut…

This article examines the differences between logical and technical web application vulnerabilities which tends to be a very confusing topic especially for web application developers and security – p…

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

How to Join a Windows 8, 8.1 Client to Windows Do…

In this article, we will show how to add a Windows 8 or Windows 8.1 client to a Windows Domain / Active Directory. The article can be considered an extention to our Windows 2012 Server article coveri…

Cisco CallManager-CCME

CallManager Express Setup for IP Phone Firmware U…

This article will show how to configure CallManager Express (CME) for the IP phone firmware upgrade process. Upgrading your Cisco IP phones is generally a good practice, especially when upgrading you…

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…

SASE & SD-WAN Networks

The Most Common Worst Networking Practices and Ho…

In the rush to keep pace with the many challenges facing today’s organizations, all too often networking teams end up adopting practices and processes that are, shall we say, less than perfect. You p…

Virtualization & VM Backup

How to Fix VMware ESXi Virtual Machine 'Invalid S…

In this article, we'll show you how to deal with VMs which are reported to have an Invalid Status as shown in the screenshot below. This is a common problem many VMware and System Administr…