Mastering Proxmox - Third Edition

Creating VM firewall rules

Creating new rules for a VM is identical to the rule creation process that we have already seen in the Configuring the Datacenter firewall through the CLI section earlier in this chapter. Besides creating rules from scratch, we can also assign predefined rules in the form of a security group to a VM. The preceding screenshot shows that our example VM has three firewall rules to allow standard web server and HTTPS traffic, but drop all HTTP or port 80 traffic.