The firewall performs a simple check of the data packets coming through the router-inspecting information such as the destination and origination IP address, packet type, port number, and other surface-level details without opening the packet to examine its contents. How do these firewalls work? And which ones are the best for your business's cybersecurity needs?Īs the most “basic” and oldest type of firewall architecture, packet-filtering firewalls create a checkpoint at a traffic router or switch.
Here are the five types of firewalls and their three modes of deployment. You can divide firewall types into several categories based on their general structure and method of operation. 8 Types of Firewalls and Deployment Architectures The primary goal of a firewall is to block malicious traffic requests and data packets while letting through legitimate traffic. Firewalls can be software, hardware, or cloud-based, with each type of firewall having unique pros and cons.
Firewalls can separate network nodes from external traffic sources, internal traffic sources, or even specific applications. What is a Firewall?Ī firewall is a type of cybersecurity tool used to filter traffic on a network. Even for a common tool such as a firewall (sometimes called a network firewall), many businesses might not know how to find the right firewall (or firewalls) for their needs, how to configure those firewalls, or why such firewalls might be necessary. One of the major challenges that companies face when trying to secure their sensitive data is finding the right tools for the job.
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