Linux is highly secure, but you should still have a firewall. You should know if your ISP's hardware (gateway) uses a firewall. One of the easiest Linux firewalls is UFW and its GUI sidekick, GUFW.

I've been writing a multipart series on building a transparent (bridging) firewall using Linux. Specifically, I'm using the distribution OpenWrt running on a Linksys WRT54GL broadband router, a ...

What Is a Host Based Firewall and Is it Secure Enough? Your email has been sent Most devices come with a host based firewall, but is it enough? Learn about this vital ...

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 ...

Network firewalls were created as the primary perimeter defense for most organizations, but since its creation the technology has spawned many iterations: proxy, stateful, Web app, next-generation ...

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 ...

Every organization that connects its network to the Internet needs a firewall to protect against intrusions and attacks from "out there." And today's security vendors make firewall products to fit ...

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 ...