IP addresses Telnet traffic Upper-layer IP protocols
Telnet.
Telnet use port number 23,and connected to TCP
telnet hostname.com 1521
because telnet sucks!!
full form of telnet is tele network.
A telnet program is essentialy a remote terminal application, used to connect to a remote computer and interact with it in text mode (command line) only. It operates over a TCP/IP network, and uses TCP port 23. The telnet conversation is completely open, not encrypted in any way, starting from the logon (username/password entry), and therefore should be avoided on untrusted networks, where it can be easily sniffed ("overheard" by anybody that analyzes the network traffic). A secure alternative to telnet is called ssh (secure shell).
Telnet operates over TCP Port 23.
Demand is unit elastic.
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