Vsphere Vcenter Server 70 Installation Guide | PDF | Port (Computer Networking) | Domain Name System
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nat - Connecting to vCenter Server, Unable to connect to the MKS: Failed to connect to server xxx.xxx.xxx.xxx:902 - Network Engineering Stack Exchange
Ports that must be open for Site Recovery Manager 1.0.x to 5.5.x, vSphere Replication 1.0.x to 5.5.x, and vCenter Server (1009562) | VMware KB
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