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Hands-On Linux Administration on Azure

You're reading from   Hands-On Linux Administration on Azure Explore the essential Linux administration skills you need to deploy and manage Azure-based workloads

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Product type Paperback
Published in Aug 2018
Publisher Packt
ISBN-13 9781789130966
Length 410 pages
Edition 1st Edition
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Author (1):
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Frederik Vos Frederik Vos
Author Profile Icon Frederik Vos
Frederik Vos
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Table of Contents (14) Chapters Close

Preface 1. Exploring the Azure Cloud FREE CHAPTER 2. Getting Started with the Azure Cloud 3. Basic Linux Administration 4. Managing Azure 5. Advanced Linux Administration 6. Managing Linux Security and Identities 7. Deploying Your Virtual Machines 8. Exploring Continuous Configuration Automation 9. Container Virtualization in Azure 10. Working with Azure Kubernetes Service 11. Troubleshooting and Monitoring Your Workloads 12. Assessments 13. Other Books You May Enjoy

Chapter 6: Managing Linux Security and Identities

  1. Using the firewall-cmd file or by deploying XML files in the /etc/firewalld directory.
  2. Otherwise it's runtime only and not persistent across reboots.
  3. In Linux, you can restrict access using ACLs in Systemd. Some applications also provides other Host Allow/Deny options. In Azure, you have the network security groups and the Azure Firewall service.
  4. DAC restricts access based on users/groups and permissions on files. MAC further restricts access based on classification labels for each resource object.
  5. If you gain access illegally to an application or system, in DAC, there is no way to prevent further access, especially for files with the same user/group owner and files with permissions for others. MAC frameworks utilitizing the Linux Security Modules to fix this problem are as follows:
    • SELinux: Red Hat-based distributions...
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