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
4861		Unassigned
5625		Unassigned
5956		Unassigned
6373		Unassigned
6796		Unassigned
7140		Unassigned
8687		Unassigned
9712		Unassigned
9717		Unassigned
10541	MOS-upper	MOS Running Order Port

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