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Telnet.
Telnet use port number 23,and connected to TCP
telnet hostname.com 1521
because telnet sucks!!
full form of telnet is tele network.
Telnet operates over TCP Port 23.
Because the telnet session is in clear text and programs can capture the passwords to log in to telnet sessions.
Windows: Open start menu, click "Run", type in "telnet" Linux: Open a Terminal window, type in "telnet"
Telnet use port number 23,and connected to TCP
i think is Telnet
no they are cousins but still diffrent species