Here are the major types of firewalls. Proxy-based firewalls These firewalls act as a gateway between end users who request data and the source of that data.

This type of firewall checks connections against specific criteria. When those criteria are met, it connects to a “state table” to enable the connection; otherwise, it rejects it.

Types of Firewall Routers. A software firewall is a standard tool for protecting computers from viruses and other malware. Some routers -- the device that carries packets of data between your ...

The good news is, there are just two basic types of firewalls to consider: hardware-based and software-based. Here is a rundown of how they work and why they may or may not work for you.

Different types of firewalls Among the distinct forms and types of firewalls in use today, the following are some of the most common. Packet-filtering firewall: This is the most ubiquitous type.