112 McIDAS Data Transmission Protocol - System Port

112 is a System Port. Transport Protocol TCP UDP , 112 Service Name mcidas, Service Name Description: McIDAS Data Transmission Protocol.

Port	Protocol	Service Name	Description	Source
112	TCP UDP	mcidas	McIDAS Data Transmission Protocol	IANA
112	TCP UDP	mcidas	McIDAS Data Transmission Protocol	bekkoame

Port	Service Name	Description
2031	mobrien-chat	mobrien-chat
2299	pc-telecommute	PC Telecommute
3847	msfw-control	MS Firewall Control
5374		Unassigned
5727	asgenf	ASG Event Notification Framework
6039	x11	X Window System
6125		Unassigned
6409	boe-resssvr3	Business Objects Enterprise internal server
6529		Unassigned
6861		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