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    On-Premises Network Communications and Ports

    network_communication_ports.png

    Management Platform

    PortDirectionPurpose
    HTTPS (tcp/443)INBrowser/API access to Management Platform
    SSH (tcp/22)INTroubleshooting via SSH (optional)
    NATS (tcp/4222)INMessage Bus for workload clusters
    HTTPS (tcp/443)OUTVSphere vCenter API, Registry (packs, integrations), Pack containers, app updates.
    HTTPS (tcp/6443)OUTWorkload K8s cluster API Server

    Workload Cluster

    PortDirectionPurpose
    HTTPS (tcp/6443)INKubernetes API Server
    SSH (tcp/22)INTroubleshooting via SSH (optional)
    NATS (tcp/4222)OUTAgent communication via Message Bus
    HTTPS (tcp/443)OUTVSphere vCenter API, Registry (packs, integrations), Pack containers, Application updates.