Port

From Oracle FAQ
⧼orafaq-jumptonavigation⧽⧼orafaq-jumptosearch⧽

A port is a number that TCP uses to route transmitted data to and from a particular program.

Some examples:

  • The Oracle Listener listens for incoming connections on a predefined port number (normally 1521 or 1526)
  • FTP used port 21
  • Telnet uses port 23
  • SMTP used port 25
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