11 articles in this category
Every professional today relies on a digital perimeter—the invisible boundary between trusted internal systems and the wilds of the internet. A networ...
If you have ever watched a firewall rulebase grow from a tidy dozen rules into a chaotic tangle of exceptions and duplicates, you know that managing n...
If your firewall strategy still revolves around blocking port 80 and allowing port 443, you are leaving the door open for attackers who have long sinc...
Introduction: Why Basic Blocking Fails in Modern NetworksWhen I first started working with firewalls in 2010, basic port blocking and IP filtering wer...
Firewalls have been the cornerstone of network security for decades, but the old model of blocking ports and allowing everything else no longer cuts i...
Network security has changed. The days when a simple stateful firewall at the perimeter could keep a business safe are long gone. Today's threats—rans...
Most teams start with a simple firewall philosophy: block bad ports, allow good ones. That worked when networks were smaller and threats were less cle...
If your firewall is still just blocking ports and allowing everything else, you are leaving the door open for modern attacks. Traditional stateful ins...
If your team is still treating the network firewall as a single appliance at the edge, you are not alone—but you may be falling behind. The perimeter ...
If you have shopped for a firewall in the last five years, you have almost certainly been offered a “next-generation firewall” (NGFW). The term sounds...
Network firewalls have evolved far beyond simple packet filtering. In 2024, threats are more sophisticated, and remote work, cloud adoption, and IoT d...