First Step Toward Cloud-Based Firewalling

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Provided by: Michigan State University
Topic: Cloud
Format: PDF
With the explosive growth of network-based services and attacks, the complexity and cost of firewall deployment and management have been increasing rapidly. Yet, each private network, no matter big or small, has to deploy and manage its own firewall, which is the critical first line of defense. To reduce the complexity and cost in deploying and managing firewalls, businesses have started to outsource the firewall service to their Internet Service Providers (ISPs), such as AT&T, which provide cloud-based firewall service. Such firewalling model saves businesses in managing, deploying, and upgrading firewalls. The current firewall service outsourcing model requires businesses fully trust their ISPs and give ISPs their firewall policies. However, businesses typically need to keep their firewall policies confidential.
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