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ManageEngine Firewall Analyzer
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…
Windows Servers
With Windows 2016 Server already making its way into data centers Windows 2016 Server Licensing is becoming a very hot topic. Windows 2016 Server is jam-packed with a number of advanced features incl…
Cisco Routers
This article serves as an extension to our popular Cisco VPN topics covered here on Firewall.cx. While we’ve covered Site to Site IPSec VPN Tunnel Between Cisco Routers (using static public IP addres…
Linux - Unix
Below are some of the most common recommendations and method to effectively secure a Linux Server or Workstation. Boot Disk One of the foremost requisites of a secure Linux server is the boot disk…
Web Application Vulnerability Scanners
Successful web application attacks and the data breaches that are resulting from these attacks, have now become everyday news, with large corporations being hit constantly. Our article covering majo…
Ethernet Protocol, CSMA/CD, Collisions
Now that Fast Ethernet is here, the question becomes, "How do I start using it ?" Integrating Fast Ethernet into existing networks need not be done all at once. Here are some aspects of 100Mbps impl…
Linux - Unix
The db.192.168.0 zone data file is the second file we need to create and configure for our BIND DNS server. As outlined in the DNS-BIND Introduction, this file's purpose is to provide the IP Address…
Palo Alto Networks
Discover the ins and outs of using Palo Alto Networks’ Software NGFW (Flex) credits to seamlessly renew your cloud-based or virtualized software NGFW devices! Dive into this exciting guide where we u…
Network Fundamentals
Network Switches are the evolution of Hubs and Repeaters, and enable the creation of networks by connecting multiple devices together. They are critical components in computer networking and are used…
Network Fundamentals
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…
Subnetting
When we subnet a network, we basically split it into smaller networks. For example, when a set of IP Addresses is given to a company, e.g 254 they might want to "break" (the correct term is "partitio…
Subnetting
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…

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