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 ...

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 ...

iptables is the user-space tool for configuring firewall rules in the Linux kernel. It is actually a part of the larger netfilter framework. Perhaps because iptables is the most visible part of the ...

What Does a Firewall Do To Protect My Home Network Your email has been sent Understanding what firewalls do (and don't do) takes just a few minutes. Learn what a firewall does to keep intruders out in ...

At its most basic level, a firewall is anything that preventsunauthorized access to a computer. The firewall can be hardware orsoftware, and the protected computer can be a typical PC, ...

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 ...

Linux firewalls can be very complicated. With the help of a GUI, firewall configuration is easier. These GUIs are easy to install and free to use. A firewall is often the heart and soul of desktop ...

Stories of compromised servers and data theft fill today's news. It isn't difficult for someone who has read an informative blog post to access a system via a misconfigured service, take advantage of ...