![]() ![]() They prevent security issues like malware threats from impacting the entire network by blocking unauthorized access to all connected devices. Network firewall: Network-based firewalls monitor incoming and outgoing traffic from the internet to secure local area networks (LANs). Examples include web application firewalls (WAF), which protect web servers and sites, and database firewalls (DB). ![]() For this reason, software firewalls are popular among individuals and small businesses.Īpplication firewall: This type of firewall is designed to control outgoing and incoming traffic and provide protection at the application layer. To provide protection to several computers, a version of the software must be installed on each one. Software firewall: Software firewalls are installed onto a host device to prevent malicious traffic. Hardware firewalls are popular among larger organizations with many computers in their network. ![]() Hardware firewall: Also known as an appliance firewall, this type of firewall is a separate, self-contained piece of hardware designed to filter network traffic. The list below outlines a few examples of firewall types: ![]()
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