A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Major vendor providing firewall solutions includes AhnLab (KR), Barracuda Networks, Check Point, Cisco, Forcepoint, Fortinet, Hillstone Networks, Huawei , Juniper Networks (JunOS and ScreenOS), New H3C Group, Palo Alto Networks, Sangfor (CN), Shopos (UK), Stormshield and WatchGuard.
Related Topics: Software solution vs Hardware Solutions, Stateful vs stateless inspection, ACLs, Firewall placement: Internal, External
- Firewall Software:
- OS: PAN-OS FortiOS SonicOS IPFire JunOS
- Concepts: DMZ
- Wikipedia:Comparison_of_firewalls Comparison of firewalls
- Gartner Magic Quadrants