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Mastering OpenStack

Mastering OpenStack

By : Omar Khedher
3.9 (8)
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Mastering OpenStack

Mastering OpenStack

3.9 (8)
By: Omar Khedher

Overview of this book

This book is intended for system administrators, cloud engineers, and system architects who want to deploy a cloud based on OpenStack in a mid- to large-sized IT infrastructure. If you have a fundamental understanding of cloud computing and OpenStack and want to expand your knowledge, then this book is an excellent checkpoint to move forward.
Table of Contents (13 chapters)
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8
8. Extending OpenStack – Advanced Networking Features and Deploying Multi-tier Applications
12
Index

Chapter 5. Implementing OpenStack Networking and Security

 

"To have security, plan ahead."

 
 --A Sicilian Proverb

The first networking concepts in OpenStack introduced you to some easy ways to manage networking by the means of the nova-network daemon. Different network providers such as FlatManager, FlatDHCPManager, and VlanManager are used to construct the network configurations for the internal and external OpenStack networks. These network managers eventually included a bridging tool as a default gateway for instances in a compute node.

On the other hand, for management and security reasons, it might be considered limited for the following reasons:

  • Flat network: This is a single IP pool and layer 2 domain without tenant isolation
  • VLAN network: This requires manual VLAN configuration on the layer 2 device (switch) for port tagging and trunking

You might have noticed the different existing networks that were deployed in a large OpenStack infrastructure and...

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Mastering OpenStack
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