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TCP/UDP Ports List - 819 (TCP/UDP)
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819 Unassigned


819 is a System Port. Transport Protocol , 819 Service Name , Service Name Description: Unassigned.
Port
Protocol
Service Name
Description
Source
819
 
Unassigned
IANA
819
TCP UDP
Mac OS X RPC-based services, Used by NetInfo, for example
Apple.com
Port
Service Name
Description
495
intecourier intecourier
761
rxe
3178
radclientport Radiance UltraEdge Port
3976
opswagent Opsware Agent
4794
Unassigned
4936
Unassigned
6682
Unassigned
7009
afs3-rmtsys remote cache manager service
7032
Unassigned
7155
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

Tcp Upd Port Nnumbers
Service Name Description

decAuth

SOAP over BEEP

npmp-trap

rsync

self documenting Telnet Panic Door

Netnews Administration System

Socks

 
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