What are the different kinds of firewalls that are out there? From what I gathered, I see there are application, proxy and UTM firewalls. Are there any others? Could you tell me if they differ in any way from the ones I already know of?
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National Institute of Standards and Technology (NIST) 800-10 divides firewalls in to five basic types:
- Packet filters
- Stateful Inspection
- Proxys
- Dynamic
- Kernel
This was first published in November 2007
Network Management Strategies for the CIO

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