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Enterprise Cloud Security and Governance

You're reading from Enterprise Cloud Security and Governance

Product type Book

Published in Dec 2017

Publisher Packt

ISBN-13 9781788299558

Pages 410 pages

Edition 1st Edition

Languages

Concepts

Author (1):

Zeal Vora

Table of Contents (11) Chapters

Preface

1. The Fundamentals of Cloud Security

2. Defense in Depth Approach

3. Designing Defensive Network Infrastructure

4. Server Hardening

5. Cryptography Network Security

6. Automation in Security

7. Vulnerability, Pentest, and Patch Management

8. Security Logging and Monitoring

9. First Responder

10. Best Practices

Firewalls

In simple terms, the firewall is a component that is responsible for monitoring and controlling the incoming and outgoing traffic depending on the rules configured.

If we look into a cloud environment, such as AWS, they provide firewall functionality through a security group, which is attached to each EC2 instance and through NACL, which is attached to an entire subnet.

How a firewall works?

The firewall acts as the front end for receiving packets from remote servers. Whenever a request comes, it is first received at the firewall end:

The firewall will check its Rule table to see if a particular IP is allowed to connect to the remote Server on the specified Port.

If the rule is Allow, then the firewall will allow...

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Authors (1)

Zeal Vora

Zeal Vora works as a DevSecOps Engineer primarily in the area of Defensive Security. He spends his days protecting and implementing security controls to help mitigate attacks both on the Cloud and servers. He is actively involved in security consultation, helping various startups which have been breached to overcome the breach and start again with a secure infrastructure.

See other products by Zeal Vora

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