Learn how firewalls have progressed from simple packet filtering to more sophisticated application-level filtering. Webopedia.com defines a firewall as “a system designed to prevent unauthorized ...

With cybercrime taking the enterprise ecosystem by storm, the issue of securing a network infrastructure along with restricting employee access to unwanted internet resources is a top-of-mind priority ...

When deciding on a firewall implementation, most Unix-savvy administrators have usually chosen to use ipfilter on OpenBSD for their combination of capabilities and stability, as the capabilities of ...

Floodgate-Packet Filter is an embedded firewall from Icon Labs that allows networked devices to control the packets they process. It protects against potentially malicious attacks by filtering packets ...

The latest Internet defense technology – deep packet inspection firewalls – is being touted as the best line of defense against worms that can sneak past earlier technology to wreak havoc in corporate ...

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, ...

Two months ago, we published Everything you need to know about IPv6, telling you the following about firewalling IPv6 in relationship to the Network Address Translation that is common in today's IPv4 ...

For those of you who have taken the plunge and upgraded from kernel 2.2.X (or even 2.0.X) to 2.4.X, congratulations. If, like a number of folks, you're running some form of firewall using either ...

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 ...