1142 User Discovery Service - User Port

1142 is a User Port. Transport Protocol TCP UDP , 1142 Service Name edtools, Service Name Description: User Discovery Service.

Port	Protocol	Service Name	Description	Source
1142	TCP UDP	edtools	User Discovery Service	IANA
1142	TCP UDP	edtools	User Discovery Service	bekkoame

Port	Service Name	Description
2306	tappi-boxnet	TAPPI BoxNet
2575	hl7	HL7
4154	atlinks	atlinks device discovery
4167	ddgn	DeskDirect Global Network
4202	vrml-multi-use	VRML Multi User Systems
4225	vrml-multi-use	VRML Multi User Systems
4613		Unassigned
6334		Unassigned
7007	afs3-bos	basic overseer process
7245		Unassigned

A port is an endpoint of communication in an operating system. While the term is also used for hardware devices, in software it is a logical construct that identifies a specific process or a type of service.

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);

The Well Known Ports are assigned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users. Ports are used in the TCP [RFC793] to name the ends of logical connections which carry long term conversations. For the purpose of providing services to unknown callers, a service contact port is defined. This list specifies the port used by the server process as its contact port. The contact port is sometimes called the "well-known port". To the extent possible, these same port assignments are used with the UDP [RFC768]. The range for well-known ports managed by the IANA is 0-1023.
DYNAMIC AND/OR PRIVATE PORTS Registered Ports are those from 1024 through 49151.
The Dynamic and/or Private Ports are those from 49152 through 65535