Best Firewall Software44Firewalls are designed to block unauthorized access to and from networks, but chiefly to stop Internet users from accessing private networks.Sophos SG Firewall Appliances1 Firewall (Discontinued)2 Point VSX3 Point UTM-14 Next Generation Firewall (Discontinued)5 Network Security6 Point VPN-17 Point 12000 Appliances8 Point 13000 Appliances9 Point 21000 Appliances10 Point 41000 Security Systems11 Thunder CFW12 Unified Firewall13 Adaptive Network Security Services14 Unified Security Gateway15 T-Series Intelligent Next-Generation Firewalls (NGFW)16 X-Series Data Center Next-Generation Firewall17 E10000 Series18 SuperMassive 9000 Series19 NSA Series20 Advanced Firewall Manager21 Firewall22 on IBM Cloud23 NGAF24 TrusGuard25

Firewall Software

Best Firewall Software

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Firewall Software Overview

What are Firewall Software?

Firewalls are filters that stand between a computer or computer network and the Internet. Each firewall can be programmed to keep specific traffic in or out. All messages passing through the firewall are examined and those not meeting pre-defined security criteria are blocked.

For example, on the outbound side, firewalls can be configured to prevent employees from transmitting sensitive data outside the network, while on the inbound side, firewalls can be configured to prevent access to certain kinds of websites like social media sites.

Firewall Software Features & Capabilities

  • Application visibility and control

  • Identify and control evasive app threats

  • Intrusion Prevention integration

  • Physical and virtual environment support

  • Integration with LDAP and Active Directory

  • "Sandbox," or isolated, cloud-based threat emulation

Firewall vendors are beginning to bundle firewall offerings with other security or privacy features, although this is not a universal practice. The most common example is support for Virtual Private Networks (VPN), and load-management is often featured as well.

Firewall methods

Firewalls use several methods to control traffic flowing in and out of a network:

  • Packet filtering: This method analyzes small pieces of data against a set of filters. Those that meet the filter criteria are allowed to pass through, while others are discarded.

  • Proxy service: In this method, computers make a connection to the proxy which then initiates a new network connection based on the content of the request. In this way, there is no direct connection or packet transfer on either side of the firewall. Network addresses are effectively hidden.

  • Stateful inspection: Stateful inspection is the new standard firewall security method that monitors communications packets over a period of time. Outgoing packets that request specific types of incoming packets are tracked. Only incoming packets that are an appropriate response are allowed to pass. Firewalls using this method are often referred to as next-generation firewalls (NGFW).

Pricing Information

The cost of firewalls can vary from free (for personal use) to significant sums of money for enterprise firewalls. Firewalls are often on-premise appliances, but can also be purchased as software which must be installed on a server, or as a cloud service. The range of pricing models is broad making it difficult to compare across vendors. However, an enterprise firewall may cost upwards of $30,000, depending on capability and type.

Firewall Products

Listings (26-50 of 51)

We don't have enough ratings and reviews to provide an overall score.

Check Point VSX is a firewall option, from Check Point Software Technologies in San Carlos, California.

We don't have enough ratings and reviews to provide an overall score.

The Stormshield Network Security is the company's line of SN series Next-Generation Firewalls (NGFW). The SN series is based on the NETASQ Firewalls acquired and merged into Stormshield after that company was formed from the merger of the original companies Netasq and Arkoon.

We don't have enough ratings and reviews to provide an overall score.

A10 Networks offers A10 Thunder CFW (for Convergent Firewall), a combined firewall and secure web gateway.

We don't have enough ratings and reviews to provide an overall score.

Comodo Cybersecurity headquartered in New Jersey offers the Comodo Firewall to deliver security controls to moderate size businesses.

We don't have enough ratings and reviews to provide an overall score.

Sangfor NGAF is a combined NGFW and Web Application Firewall. It provides a full core suite of firewall services scaled for enterprises.

We don't have enough ratings and reviews to provide an overall score.

Korean company AhnLab offers TrusGuard, an integrated firewall, IPS, VPN, anti-virus, and anti-spam security appliance featuring DDoS protection and secure connectivity with internal systems through an IPSec/SSL VPN.