436 DNA-CML - System Port | Service Name:dna-cml

436 is a System Port. Transport Protocol TCP UDP , 436 Service Name dna-cml, Service Name Description: DNA-CML.

Port	Protocol	Service Name	Description	Source
436	TCP UDP	dna-cml	DNA-CML	IANA
436	TCP UDP	dna-cml	DNA-CML	bekkoame

Port	Service Name	Description
704	elcsd	errlog copy/server daemon
731	netviewdm3	IBM NetView DM/6000 receive/tcp
2189	radware-rpm-s	Secure Radware Resource Pool Manager
2365	dbref	dbref
4796		Unassigned
5596		Unassigned
5951		Unassigned
6104	dbdb	DBDB
6834		Unassigned
7728		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