Firewalls are an essential part of network security, yet Gartner says 95% of all firewall breaches are caused by misconfiguration. In my work I come across many firewall configuration mistakes, most ...

Configuring Windows Firewall settings is one of the most fundamental security precautions. It is a built-in security feature that comes with all versions of Windows, acting as a barrier between your ...

Firewalls are essential for restricting and controlling Internet traffic sent between the web and your company's network. You can further enhance the security of your LAN by having a strict firewall ...

This chapter looks at the management of firewalls. From the perspective of the small office/home user, the firewall is a single device that protects the home network from malicious traffic—it keeps ...

Many enterprise networks require redundant HA (High Availability) infrastructure for key systems like network firewalls. This article demonstrates how you can use a combination of open-source packages ...

Mike Chapple is associate teaching professor of IT, analytics and operations at the University of Notre Dame. Does your firewall rulebase remind you of that drawer in your kitchen where you throw all ...

Netsh, short for Network Shell, is a command-line utility designed to assist IT administrators in configuring and viewing various network-related functions on Windows 11/10. This tool can also be ...

So far, in my previous articles on Nmap, we've looked at how the scanner can be used to map and audit a network, as well as track down noncompliant devices and services. But hackers can also use Nmap ...

The firewall is one of the most important security features in a computer environment. In the classic sense, a firewall is set up on an appliance, such as a computer that fulfills just a single, ...