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Firewalls
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Introduction
There are four primary categories of firewall:
- Physical firewalls
- Virtual firewalls
- Hypervisor-integrated firewalls
- Client Firewalls
Physical firewalls
e.g. Juniper SSG, Cisco PIX, Cisco ASA, etc
Virtual firewalls
e.g. Fortigate, pfSense, etc
Hypervisor-integrated firewalls
e.g. VMware NSX
Client Firewalls
e.g. Windows Firewall, iptables, etc