Good afternoon! I am facing a challenge with a cluster hosted on OVH consisting of 5 servers, each with a public IP. The cluster is working fine with IPv6, but I have identified some vulnerabilities, such as public communication between servers, the absence of a private network, and direct access to servers via public IPs (IPv4 and IPv6). The client's contract does not cover the Vrack option, and adding a VM with pfSense or OPNsense seems to interfere with the cluster. I need to restrict...
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