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VMware vSphere Management
Port 902 is primarily used by VMware vSphere for communication between the vSphere Client, ESXi hosts, and VMware management agents. It facilitates remote management, tasks automation, and host operations. The port enables secure communication pathways for remote console access, management functionalities, data transfers within VMware infrastructures, and integration with vCenter Server for centralized management..
Overview:
VMware vSphere utilizes port 902 to establish connections between the vSphere Client or vCenter Server and ESXi hosts. It plays a critical role in VMware's host management and remote console operations. When a user opens a console to a VM through vSphere Client or Web Client, communication typically flows through port 902.
Data Exchange:
This port is used by VMware's hostd and vpxa management agents to facilitate operations such as VM power controls, migrations, backups, and host monitoring. Backup solutions, third-party management tools, and VMware services rely heavily on port 902 to interact with ESXi hosts effectively.
Protocol and Service Context:
Port 902 primarily uses TCP (and UDP for some legacy heartbeat communication, though less commonly now). It does not utilize SCTP. Traffic traversing this port is largely unencrypted unless additional security layers (like SSL) are configured. The port is essential for the internal communication within VMware deployments but is less frequently exposed beyond trusted internal management networks.