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.
Firewalls and Their Evolution. A firewall is a network security device that grants or rejects network access to traffic flows between an untrusted zone (e.g., the Internet) and a trusted zone (e.g., a private or corporate network).