:900
(TCP)
Medium Risk
OMG Initial Refs
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TCP — Other
Port Overview
Port Number
900
Service Name
OMG Initial Refs
Transport Protocol
TCP
Category
Other
Security Risk
Medium
Port Range
Well-Known (0-1023)
What is Port 900?
OMG Initial References, used by CORBA for obtaining initial object references. CORBA was dominant enterprise middleware in the late 1990s. Largely replaced by REST, gRPC, and microservices.
TCP
Other
Security Considerations
Port 900 (OMG Initial Refs) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.
Recommendation: Keep the service updated. Monitor logs for unusual activity.