port filtering is when a router monitors the destination ports of the tcp/udp and/or other port-based network protocol packets that pass through it. with port filtering you can have the router block ...

A software firewall is a standard tool for protecting computers from viruses and other malware. Some routers -- the device that carries packets of data between your network and the Internet -- offer ...

The humble firewall has come a long way since the packet-filtering days of yore. The first firewalls were developed by the Digital Equipment Corporation (DEC) back in the late 1980s. These early ...

Version 2.6.12 of the Linux kernel is likely to include packet filtering that will work with IPv6, the latest version of the Internet Protocol. Netfilter/iptables, the firewall engine that is part of ...

When you hear of the term firewall, you might believe there is only a single type, but that is not the case. There are different types of firewalls, and luckily for you, we aim to explain them in this ...

Understanding what firewalls do (and don’t do) takes just a few minutes. Learn what a firewall does to keep intruders out in A firewall is a security protocol that protects your internal network from ...

Understanding the stateful firewall vs stateless firewall distinction will help you decide on the best strategy for protecting your network. A stateful firewall keeps track of the state of network ...

Firewalls monitor and regulate the data moving on and off your computer or network. They can keep criminals out while allowing legitimate network traffic in. Mac OS X comes with not one but two ...