Comparison of firewalls

Columns: Firewall | License | Cost | OS
Clavister | Proprietary | Included on all Clavister NGFWs | Proprietary operating system cOS Core | Check Point | Proprietary | Included on Check Point security gateways | Proprietary operating system Check Point IPSO and Gaia ( Linux -based ) | FortiGate | Proprietary | Included on all Fortigate devices | Proprietary , FortiOS , Based on the Linux kernel | Palo Alto Networks | Proprietary | Included on Palo Alto Networks firewalls | Proprietary operating system PANOS | Sophos | Proprietary | Included on Sophos UTM | Linux -based appliance | Cisco ASA Firepower | Proprietary | Included on all CISCO ASA devices | Proprietary operating system | Cisco PIX | Proprietary | Included on all CISCO PIX devices | Proprietary operating system

Example questions:
What is the OS of the comparing firewall appliance that has 550+ employees across the Earth ? | What is the cost of the comparing firewall appliance that was created in 1994 as an IT reseller termed NetPartners ? | What is the license of the comparing firewall appliance that can be equipped on any IA-32 computer with almost any Ethernet interface ? | What is the comparing firewall appliance whose license allows users to use the software for any reason without burden for royalties ?

Answers:
Windows | Included on all Forcepoint NGFW devices | GPL | pfSense