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Mastering Proxmox - Second Edition by Wasim Ahmed

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Configuring a host-specific firewall

Any rules created in the host zone only apply to the node itself where the rule is created and the VMs are in that host node. Rules for one node do not get replicated to the other nodes although the rule files are stored in the Proxmox cluster filesystem. There are no options to create IPSet or Security Groups in the host zone. We can only create firewall rules. The following screenshot shows the Firewall feature for the host node pm4-1 in our example cluster:

Configuring a host-specific firewall

Creating host firewall rules

The process of creating new rules for the Host zone is identical to the rule creation process that we have already discussed ...

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