536 opalis-rdv - System Port | Service Name:opalis-rdv

536 is a System Port. Transport Protocol TCP UDP , 536 Service Name opalis-rdv, Service Name Description: opalis-rdv.

Port	Protocol	Service Name	Description	Source
536	TCP UDP	opalis-rdv	opalis-rdv	IANA
536	TCP UDP	opalis-rdv	opalis-rdv	bekkoame

Port	Service Name	Description
749	kerberos-adm	kerberos administration
2761	dicom-iscl	DICOM ISCL
4022	dnox	DNOX
5592		Unassigned
7331	swx	The Swiss Exchange
9568		Unassigned
9817		Unassigned
11554		Unassigned
11964		Unassigned
12645		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