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The end user would choose Community ports or both Open and Community ports. If the end user chooses Community ports only, the end user could then decide to allow all IP's from foreign countries or just the IP's from compliant countries or no foreign IP's, all of this configuration would happen at the ISP level.
The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...
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In the case of FTP, this port differs from the listening port. Some protocols—including FTP, FTP Secure, FASP, and Tsunami—listen on a "control port" or "command port", at which they receive commands from the client. Similarly, the encryption scheme indicated in the "Encryption" column applies to transmitted data only, and not to the ...
In computer networking, a port or port number is a number assigned to uniquely identify a connection endpoint and to direct data to a specific service. At the software level, within an operating system , a port is a logical construct that identifies a specific process or a type of network service .
Among the ports they propose designating as a community port is port 80, the standard port for the hypertext transport protocol , the transport mechanism used to support the World Wide Web. This is advocated in order to permit easier filtering of such material by firewalls , content-control software , and other devices or programs.
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A network socket is a software structure within a network node of a computer network that serves as an endpoint for sending and receiving data across the network. The structure and properties of a socket are defined by an application programming interface (API) for the networking architecture.