Sockets
A socket identifies several pieces of information about a communication channel:
-
Protocol: How the operating systems exchange application data
-
Destination host: The destination host address(es) for packets sent on
this socket
-
Destination application ID or port: Identifies the appropriate socket
on the destination host
-
Source host: Identifies which host is sending the data
- Information rarely needed
-
Local application ID or port: A 16 bit integer that identifies which application
is sending data along this socket
Example of the URL : protocol://Destination.host:destinationPort/