Cloud Firewall

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What is a cloud firewall?

A firewall offering in cloud infrastructure from the firewall vendors. Few vendors already have a cloud infra built across and offer their firewall from the cloud service edges. Some traditional firewall vendors also offer their firewall instance which we can install in the cloud availability zone of our choice. The basic idea would be if we are unwilling to purchase a firewall, we can take cloud firewall as a service and tunnel all the traffic to cloud  firewall for filtering our traffic.   

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