Articles That Might Interest:

SASE & SD-WAN Networks

WAN Optimization vs SD WAN Networks. Today’s Chal…

Enterprises have been successfully running WAN optimization appliances at their many distributed sites for years. The devices have done a good job of helping businesses squeeze as much capacity as po…

Palo Alto Networks

Palo Alto Firewall Application-based Policy Enfor…

Our previous article examined the benefits of Palo Alto Networks Firewall Single Pass Parallel Processing (SP3) architecture and how its combine with the separate Data and Control planes to boost fir…

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…

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…

Spanning Tree Protocol (STP)

Spanning Tree Protocol – Part 1: Understand STP P…

One of the most used terms in network is LAN (Local Area Network). It’s a form of network that we encounter in our daily lives, at home, at work, study, and in various other areas of life. Unless wor…

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…

Virtualization & VM Backup

8 Critical Features to Have in a VM Backup Soluti…

Businesses that rely on virtual machines for their day-to-day operations should think twice about securing their infrastructure. Modern use of virtual machines stems from the benefits of virtualizati…

Network Address Translation - NAT

Network Address Translation (NAT) Concepts

Before we dive into the deep waters of NAT, we need to make sure we understand exactly what NAT does. So let me give you the background of NAT, why it's here today and how it works. Even though there…

Cisco Switches

Cisco Catalyst Err-disabled Port State, Enable &…

Errdisable is a feature that automatically disables a port on a Cisco Catalyst switch. When a port is error disabled, it is effectively shut down and no traffic is sent or received on that port…

VLAN Networks

VLAN InterSwitch Link (ISL) Protocol Analysis

Deciding whether to use ISL or IEEE 802.1q to power your trunk links can be quite confusing if you cannot identify the advantages and disadvantages of each protocol within your network. This article…

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…

Network Fundamentals

Firewall Topologies

In this section we are going to talk about the different ways a firewall can be set up. Depending on your needs, you can have a very simple firewall setup which will provide enough protection for you…