What is a Firewall?

A firewall is the key component of network security, acting as the guard against malicious traffic, data loss, and unauthorized access. Traditionally, a firewall was put at the perimeter to determine which traffic to let into the network and which to keep out. Today, it’s recommended to have a firewall at the core of your network as well, such as an internal segmentation firewall, as threats do slip in and spread. A firewall platform can be hardware, software, or a combination. 


What are the key types?

Network firewalls today are typically next-generation firewalls, or enterprise firewalls. These devices deliver a number of security technologies, such as IPS, web filtering, VPN, SSL inspection, identity management integration, bandwidth management, and more. 


What are the main challenges?

Threats are constantly evolving and increasing in number at the same time there are more devices connected to networks than ever. A firewall must be able to keep up with the latest threats, while maintaining high performance, even when all controls are turned on, such as SSL inspection.


How can today's requirements be addressed?

Deploying a firewall with purpose-built security processors to ensure no network slowdowns is critical to maintaining a usable network. Ensuring top threat intelligence services are being delivered in real time is just as important.

No matter how great a firewall is, however, it’s not a complete solution. To cover an organization’s entire attack surface, security solutions for network, endpoint, application, data center, cloud, access, and email must work together as an integrated and collaborative security fabric. The FortiGate next-generation firewall platform (hardware and virtualized) is the heart of the Fortinet Security Fabric, which delivers true end-to-end network security.


Where can I learn more about Fortinet's Enterprise Firewall solution?

Visit the Next-Generation firewall product page to learn about the various firewalls available to support your network security deployment needs.