1542 gridgen-elmd - User Port | Service Name:gridgen-elmd

1542 is a User Port. Transport Protocol TCP UDP , 1542 Service Name gridgen-elmd, Service Name Description: gridgen-elmd.

Port	Protocol	Service Name	Description	Source
1542	TCP UDP	gridgen-elmd	gridgen-elmd	IANA
1542	TCP UDP	gridgen-elmd	gridgen-elmd	bekkoame

Port	Service Name	Description
1187	alias	Alias Service
3426	arkivio	Arkivio Storage Protocol
3800	pwgpsi	Print Services Interface
4785		Reserved
4996		Unassigned
6507	bdir-priv	BoKS Dir Server, Private Port IANA assigned this well-formed service name as a replacement for "bdir_priv".
7695		Unassigned
8201	trivnet2	TRIVNET
9271		Unassigned
9461		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