Mike Chapple is a teaching professor of IT, analytics and operations at the University of Notre Dame. Network firewalls are one of the mainstay security controls that organizations rely on to protect ...

Do note that you have to launch Windows PowerShell as an administrator, otherwise, the commands will not execute and you will receive an error in PowerShell. Let’s ...

Securing your home network is more critical than ever, as the Internet is a scary place full of terror, and automated tools have made the job of cybercriminals even easier. Setting up a powerful ...

Now you're ready for the next step: configuring the firewall rule-set, or policy file. A rule-set specifies what services to let through your firewall, and which ones to keep out. A rule defines the ...

To properly protect your network, you need to know who and what has access to your network, and where all sensitive information is located. To better control access, start by limiting the devices that ...

Imagine this: your smart home devices, guest Wi-Fi, and workstations all coexist on the same network. A single compromised IoT device could expose sensitive data or disrupt your entire system. It’s a ...

When I first started using Linux, back in '97, working with the built-in firewall was not something just anyone could do. In fact, it was quite complicated. Starting around 1998, if you want to manage ...

As a foundational network defense, firewalls continue to be enhanced with new features, so many that some important ones get overlooked. Firewalls continuously evolve to remain a staple of network ...

Mike Chapple is a teaching professor of IT, analytics and operations at the University of Notre Dame. Network firewalls are one of the mainstay security controls that organizations rely on to protect ...