441 decvms-sysmgt - System Port | Service Name:decvms-sysmgt

441 is a System Port. Transport Protocol TCP UDP , 441 Service Name decvms-sysmgt, Service Name Description: decvms-sysmgt.

Port	Protocol	Service Name	Description	Source
441	TCP UDP	decvms-sysmgt	decvms-sysmgt	IANA
441	TCP UDP	decvms-sysmgt	decvms-sysmgt	bekkoame

Port	Service Name	Description
618	dei-icda	DEI-ICDA
1370	us-gv	Unix Shell to GlobalView
1641	invision	InVision
1655	dec-mbadmin	dec-mbadmin
1776	femis	Federal Emergency Management Information System
2637	imdocsvc	Import Document Service
3294	fg-gip	fg-gip
3604	bmc-jmx-port	BMC JMX Port
4102	brlp-1	Braille protocol
4338		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