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DevOps for Networking

You're reading from   DevOps for Networking Bringing Network Automation into DevOps culture

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Product type Paperback
Published in Oct 2016
Publisher
ISBN-13 9781786464859
Length 364 pages
Edition 1st Edition
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Author (1):
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Steven Armstrong Steven Armstrong
Author Profile Icon Steven Armstrong
Steven Armstrong
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Table of Contents (13) Chapters Close

Preface 1. The Impact of Cloud on Networking 2. The Emergence of Software-defined Networking FREE CHAPTER 3. Bringing DevOps to Network Operations 4. Configuring Network Devices Using Ansible 5. Orchestrating Load Balancers Using Ansible 6. Orchestrating SDN Controllers Using Ansible 7. Using Continuous Integration Builds for Network Configuration 8. Testing Network Changes 9. Using Continuous Delivery Pipelines to Deploy Network Changes 10. The Impact of Containers on Networking 11. Securing the Network Index

Securing a software-defined network

So far in this chapter, we have focused on a set of minimal network security requirements to make sure that a software-defined network is secure.

But to maximize the security of a software-defined network, we should look at how overlay and underlay networks could potentially be exploited in new ways by attackers and look at different mechanisms that can be put in place to prevent this from happening.

Software-defined Networks are split into the overlay (which holds all the virtualized networks that houses virtual, physical machines, and containers) and the underlay (which holds all bare metal machines such as hypervisors, network devices, and SDN controllers).

Attacks at Overlay

Overlay networks are created to allow networks to be automated programmatically via APIs and increase the speed of change by simplifying the network in software.

Within the remit of Continuous Delivery, self-service ACL rules can be set up by developers to govern north to south and...

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