The Cloud Adoption Playbook by Moe Abdula & Ingo Averdunk & Roland Barcia & Kyle Brown & Ndu Emuchay

Author:Moe Abdula & Ingo Averdunk & Roland Barcia & Kyle Brown & Ndu Emuchay
Language: eng
Format: epub
Published: 2018-05-03T00:00:00+00:00

Cloud-hosted firewalls

Purpose-built network security devices typically reside at the edge, or ingress/egress points, of a workload. These devices may include cloud-provider-ordered physical devices such as dedicated firewalls and virtual appliances such as gateway routers.

Cloud-hosted firewalls enforce settings that protect your environment at the Internet–cloud border as well as at the cloud-on-premises border (although the latter border is equally well protected by an on-premises hosted firewall).

Firewalls, including those at network level and web application level, are designed to prevent malicious activity from reaching your environment. You (or your managed services provider such as IBM’s Managed Security Services) must define and implement the appropriate firewall policies based on the allowed or denied traffic for a given workload.

By blocking unwanted traffic from your environment, you can improve the performance of your entire system’s network availability, workload, and security.

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