Articles That Might Interest:

TCP - UDP Protocol Analysis

Transmission Control Protocol - Part 3: The TCP H…

This article shows the TCP Header and Segment. We explain where the TCP Header and Segment are located in an Ethernet frame and also briefly view the available options in the TCP Header. Our easy-to-…

Cisco Data Center (Nexus/UCS)

NEXUS NX-OS: Useful Commands, CLI Scripting, Hint…

Whether you’re new to Cisco Nexus switches or have been working with them for years this article will show how to get around the Nexus NX-OS using smart CLI commands and parameters, create your…

Cisco Firewalls

Understand & Configure NAT Reflection, NAT Loopba…

This article examines the concept of NAT Reflection, also known as NAT Loopback or Hairpinning, and shows how to configure a Cisco ASA Firewall running ASA version 8.2 and earlier plus ASA version 8…

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

Revealing & Backing Up Your Windows 8 – Windows 8…

Backing up your Windows License Product Key is essential for reinstallation of your Windows 8 or Windows 8.1 operating system. In some cases, the Genuine Microsoft Label or Certificate Of Authenticit…

Windows Servers

Creating Windows Users and Groups with Windows 20…

In a Windows server environment, it is very important that only authenticated users are allowed to log in for security reasons. To fulfill this requirement the creation of User accounts and Groups is…

Linux - Unix

Understanding Linux File System Quotas - Installa…

When you are running your own web hosting, it is important to monitor how much space is being used by each user. This is not a simple task to be done manually since one of the users or group could fi…

Cisco Routers

How To Configure Windows VPDN (PPTP) Dialup Conne…

Setting up a Windows VPDN connection is a required task in order to connect to a remote network. In previous articles we covered the set up of a VPDN - PPTP server on a Cisco router. Click here to fi…

Linux - Unix

Understanding The Linux Init Process & Different…

Different Linux systems can be used in many ways. This is the main idea behind operating different services at different operating levels. For example, the Graphical User Interface can only be run if…

ManageEngine Firewall Analyzer

Dealing with Security Audit Challenges: Discoveri…

The utilization of log analyzers, such as Firewall Analyzer, in network infrastructure plays a pivotal role in enhancing cybersecurity and fortifying the overall security posture of an organization…

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…

Subnetting

IP Subnetting - Part 2: Subnet Masks & Their Effe…

There are a few different ways to approach subnetting and it can get confusing because of the complexity of some subnets and the flexibility they offer. For this reason I created this little paragrap…

Ethernet Protocol, CSMA/CD, Collisions

Ethernet Troubleshooting - Physical Frame Corrupt…

When troubleshooting your Ethernet network, the first thing to look for is physical frame corruption. In this essay, we will discuss the different causes of physical frame corruption and the characte…