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Windows Servers

How to Recover & Create "Show Desktop" Icon Funct…

The Show Desktop feature, included with almost all versions of Windows up to Windows 7, allows a user to minimize or restore all open programs and easily view the desktop. To use this feature, a use…

Web Application Vulnerability Scanners

Automate Web Application Security - Why, How & Th…

In this article, we’re going to talk about automating your web security in the safest and most effective way. We’ll also touch on a few Web Application Security automation tools worth considering…

Virtualization & VM Backup

The Backup Bible. A Free Complete Guide to Disast…

The Free Backup Bible Complete Edition written by backup expert and Microsoft MVP Eric Siron, is comprised of 200+ pages of actionable content divided into 3 core parts, including 11 customizable tem…

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 Switches

Spanning Tree BPDU Guard and Errdisable Interface…

Running Spanning Tree Protocol (STP) in a large network environment can be a challenging task especially when features/enhancements such as BPDU Filter and BPDU Guard need to be configured to help ST…

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…

Cisco Services & Technologies

WEB SSL VPN - The Next Wave Of Secure VPN Services

Fifteen years ago Virtual Private Networks (VPN) access was a fairly new concept to most businesses. While large corporations already had a good head-start with VPN technologies, the rest were starti…

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…

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…

Web Application Vulnerability Scanners

Free Web Application Vulnerability Report (2019)…

Acunetix has just released their annual Web Application Vulnerability report which aims to provide security professionals, web application developers, system administrators, web server administrators…

Subnetting

IP Subnetting - Part 3: Subnet Mask Bits & Analys…

So we have covered to some depth the subnetting topic, but there is still much to learn ! We are going to explain here the available subnet masks and analyse a Class C network, using a specific subne…

Palo Alto Networks

Complete Guide to Upgrading Palo Alto Firewall PA…

Upgrading your Palo Alto Firewall or Panorama Management System to the preferred PAN-OS release is always recommended as it ensures it remains stable, safe from known vulnerabilities and exploits but…