Many of the planets in our Solar System have a system of moons. But among the rocky planets that make up the inner Solar System, having moons is a privilege enjoyed only by two planets: Earth and Mars.
Functionally, the two arenât so different. Hardware firewalls are basically a specialized device running software. They can be set-and-forget solutions if the default configuration works for your company. Plus, because they run on a dedicated, hardened device, they provide a higher level of security.
Outside of computer security, a firewall is simply a wall built to stop (or slow down) the spread of a fire. In terms of computer security, a firewall is a piece of software. This software monitors the network traffic. A firewall has a set of rules which are applied to each packet. The rules decide if a packet can pass, or whether it is discarded.