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Mastering Proxmox. - Second Edition

You're reading from Mastering Proxmox. - Second Edition

Product type Book

Published in May 2016

Publisher Packt

ISBN-13 9781785888243

Pages 418 pages

Edition 2nd Edition

Languages

Concepts

Cloud Computing

Author (1):

Wasim Ahmed

Table of Contents (21) Chapters

Mastering Proxmox - Second Edition

Credits

About the Author

About the Reviewer

www.PacktPub.com

Preface

1. Understanding Proxmox VE and Advanced Installation

2. Exploring the Proxmox GUI

3. Proxmox under the Hood

4. Storage Systems

5. KVM Virtual Machines

6. LXC Virtual Machines

7. Network of Virtual Networks

8. The Proxmox Firewall

9. Proxmox High Availability

10. Backup/Restore VMs

11. Updating and Upgrading Proxmox

12. Monitoring a Proxmox Cluster

13. Proxmox Production-Level Setup

14. Proxmox Troubleshooting

Index

Configuring the Datacenter-specific firewall

As mentioned earlier, Datacenter-specific firewall rules affect all resources, such as cluster, nodes, and virtual machines. Any rules created in this zone are cascaded to both hosts and VMs. This zone is also used to fully lock down a cluster to drop all incoming traffic and then only open what is required. In a freshly installed Proxmox cluster, the Datacenter-wide firewall option is disabled.

Note

CAUTION! Attention must be given to this section to prevent full cluster lock out.

Configuring the Datacenter firewall through the GUI

The following screenshot shows the firewall option for the Datacenter zone through the Options tab by navigating to Datacenter | Firewall | Options:

As we can see, in the preceding screenshot, the Proxmox firewall for the Datacenter zone is disabled by default, with Input Policy set to Drop and Output Policy set to Accept. If we did enable this firewall option right now, then all inbound access would be denied. You would...

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Authors (1)

Wasim Ahmed

Wasim Ahmed, born in Bangladesh and now a citizen of Canada, is a veteran of the IT world. He first came into close contact with computers in 1992 and never looked back. Wasim has a deep understanding of networks, virtualization, big data storage, and network security. By profession, Wasim is the CEO of a global IT support and cloud service provider based in Calgary, Alberta. He serves many companies and organizations through his company on a daily basis. Wasim's strength comes from his experience, which comes from learning and serving continually. Wasim strives to find the most effective solution at the most competitive price. He has built over 20 enterprise production virtual infrastructures using Proxmox and the Ceph storage system. Wasim and his team are notorious for not simply accepting a technology based on its description alone, but putting it through rigorous testing to check its validity. Any new technology that his company provides goes through months of continuous testing before it is accepted. Proxmox made the cut superbly.

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