Internet Firewall Security

Proxy services can provide additional security in addition to firewalls. Inspecting the way they work reveals they may also be considered firewalls themselves.

In this article, we shall take a look at how hardware-based or network layer firewalls work and how they differ from firewall software.

Firewalls come in two variants: hardware and software. Most firewalls of the latter type are personal firewalls, which are programs installed on a computer that control communications made to and from that PC.