Port 9024 services

4 entries are registered on port 902. It is a well-known port (0–1023) — assignments here are IANA's, and a service found on one is usually the service that was assigned it.

entries
4

services registered on this number

transport
udp · tcp

2 transports in use

in transit
0/4

entries encrypted on the wire

worst risk
4/10

2 of 4 iana-registered

Services on this port

ranked by lookups

01IdeaFarm Door Protocoludp · iana-registered · risk 4/10

The IdeaFarm Door Protocol utilizes UDP port 902 for communication purposes, mainly associated historically with the IdeaFarm software systems. Though it is officially registered, the protocol is obscure and largely deprecated, primarily serving as a proprietary communication channel. Its presence on modern networks is rare, and most contemporary uses of port 902 relate instead to VMware services over TCP, not UDP, which can sometimes lead to confusion during network assessments.

port 902 as IdeaFarm Door Protocol

02IdeaFarm Doortcp · iana-registered · risk 4/10

Port 902 is officially assigned to IdeaFarm Door, a self-documenting service where sending a single byte (0x00) prompts an informational response. This mechanism allows clients to quickly understand the service's capabilities. The port is primarily used over TCP, and it is part of legacy systems with niche deployment, seldom encountered in mainstream environments today.

port 902 as IdeaFarm Door

03VMware vSphere Managementtcp · unofficial · risk 4/10

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.

port 902 as VMware vSphere Management

04VMware Console UDPudp · unofficial · risk 4/10

UDP port 902 is primarily used by VMware Server Console for communication between the managed VMware server and the management console. It enables important service functions like remote management, control, and monitoring of virtual infrastructure, ensuring administrators can maintain oversight of VMware environments efficiently through network communications.

port 902 as VMware Console UDP

Which one is on your host

ask the machine, not the registry

The registry says what 902 is registered to. What is listening on it right now is decided by the host, and only the host can be asked. Each of these prints the process behind the socket.

linux
ss -ltnp | grep ':902\b'
macos
lsof -nP -iTCP:902 -sTCP:LISTEN
windows
netstat -ano | findstr :902

On Linux and Windows the process name comes back with the socket; on macOS lsof needs sudo to name a process that isn't yours. Match what it prints against the 4 entries above.

A port number is not a service. Anything may listen on 902 — what you actually met is decided by the host, not the registry. If a service is missing here, it belongs in the registry.

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