Four basic types of firewall protection exist--network level, circuit level, application-level and stateful multilayer. Each type has advantages and disadvantages, ranging from ease of implementation ...

In the first installment of this column, I discussed some of the key criteria for selecting the appropriate firewall for your organization. Here are a few more features you should consider: Most ...

Some of the most commonly-used firewalls are subject to a hacker exploit that lets an attacker trick a firewall and get into an internal network as a trusted IP connection. More on security: 20 hot IT ...

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 ...

The Linux kernel includes some of the most powerful and flexible firewall code in any general-purpose operating system. This code is called Netfilter, though most of us refer to it by the name of its ...

In today's world of permanent Internet connectivity, whether through Wi-Fi or Ethernet, a firewall is an essential component of your device's security. This software – or in some cases, a separate ...

Huge data center, check. Multiple 10G Ethernet pipes, check. Load balancer, check. Firewall? Really? Do network architects need to buy yet another box, and likely take a performance hit? Not according ...