If one was to ask a group of strangers on the street to name some of the most popular computer security tools, one of the first things that would pop into their minds is firewalls. Though other ...

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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 ...

Most devices come with a host based firewall, but is it enough? Learn about this vital layer of security and how it keeps you safe. A host-based firewall is installed and run on a single device, like ...

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 ...

You’d think a mature security device like a firewall by now is just a matter of set it and forget it. But not so: Even the slightest tweak to one firewall rule can wreak havoc on another firewall, and ...

To properly protect your network, you need to know who and what has access to your network, and where all sensitive information is located. To better control access, start by limiting the devices that ...

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 ...