A firewall is a security device that controls the flow of traffic across a network. A firewall may be a hardware appliance, or it may be a piece of software that runs on a third-party operating system.
Source: Tripwire – The State of Security
A firewall is a security device that controls the flow of traffic across a network. A firewall may be a hardware appliance, or it may be a piece of software that runs on a third-party operating system.
Source: Tripwire – The State of Security