764 - System Port | Service Name:omserv

764 is a System Port. Transport Protocol TCP , 764 Service Name omserv, Service Name Description: .

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

Port	Service Name	Description
1672	netview-aix-12	netview-aix-12
2664	patrol-mq-gm	Patrol for MQ GM
2783	aises	AISES
4118	netscript	Netadmin Systems NETscript service
5900	rfb	Remote Framebuffer
6123	backup-express	Backup Express
6278		Unassigned
7405		Unassigned
7473	rise	Rise: The Vieneo Province
7573		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