Скачать или смотреть Session, connections, sockets, & ephemeral ports

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Today my topic is session, connection, sockets, and ephemeral port numbers.
In the TCP/IP world, any single connection between two computers is a session. Session and connection are interchangeable in general, though technically, a connection means medium linked for communication while a session refers to the process of the communication between two systems.

One side’s session information is called a socket or endpoint.
Two sides’ session information is socket pairs or endpoints.
A socket is the combination of an IP address and a port number. TCP/UDP applications utilize sockets to communicate with one another.

servers use well-known port numbers, and they are reserved and long-lived port numbers. Clients use dynamic/private port numbers. They are short-lived and temporary. That is why it is also called ephemeral port numbers.

Playlists:

Ports, port #, & TCP/IP applications

   • CompTIA Network+  Performance-based Tests ...  


Topology & cabling, & physical cabling structure:
https://www.youtube.com/watch?v=T5xQJ...
Ethernet Basics:
https://www.youtube.com/watch?v=FkH_J...
IPv4 Basics:
   • Tricks to five classes of IPv4  
OSI Model and related:
   • OSI Model