769 - System Port | Service Name:vid

769 is a System Port. Transport Protocol TCP , 769 Service Name vid, Service Name Description: .

Port	Protocol	Service Name	Description	Source
769	TCP	vid		IANA
769	UDP	vid		IANA
769	TCP UDP		Mac OS X RPC-based services, Used by NetInfo, for example	Apple.com
769	TCP UDP	vid		bekkoame

Port	Service Name	Description
413	smsp	Storage Management Services Protocol
461	datasurfsrv	DataRampSrv
1397	audio-activmail	Audio Active Mail
1407	dbsa-lm	DBSA License Manager
2676	simslink	SIMSLink
3164	imprs	IMPRS
3556	sky-transport	Sky Transport Protocol
4075	perimlan	ISC Alarm Message Service
4462		Unassigned
5296		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