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Port 261

Port
Protocol
Service Name
Description
Source
261
TCP UDP
nsiiops
IIOP Name Service over TLS/SSL
IANA
261
TCP UDP
nsiiops
IIOP Name Service over TLS/SSL
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A port is an application-specific or process-specific software construct serving as a communications endpoint in a computer's host operating system.

Service names and port numbers are used to distinguish between different services that run over transport protocols such as TCP, UDP, DCCP, and SCTP.

Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535);