1969
Telnet, a network protocol, first opened for business in 1969. It was one of the first internet standards. It is still one of the standards used today.
Telnet is non secure, travel data in open form you can easily theft/capture data, ssh is secure transmission of data over network, telnet is little bit faster than SSH, because it is not encrypting data, SSh is little slower than telnet because encrypt data when transmitting over network
Telnet.
Telnet use port number 23,and connected to TCP
telnet hostname.com 1521
full form of telnet is tele network.
because telnet sucks!!
To use a Telnet app on an Android smartphone, first, download a Telnet client from the Google Play Store, such as "Termux" or "JuiceSSH." Open the app and enter the Telnet command along with the desired hostname or IP address and port number (e.g., telnet example.com 23). Once connected, you can interact with the remote server using the command line interface. Make sure your phone is connected to the internet for the connection to work.
Telnet operates over TCP Port 23.
Telnet is a network protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communications facility using a virtual terminal connection. User data is interspersed in-band with Telnet control information in an 8-bit byte oriented data connection over the Transmission Control Protocol (TCP). Telnet was developed in 1969 beginning with RFC 15, extended in RFC 854, and standardized as Internet Engineering Task Force (IETF) Internet Standard STD 8, one of the first Internet standards. Historically, Telnet provided access to a command-line interface (usually, of an operating system) on a remote host. Most network equipment and operating systems with a TCP/IP stack support a Telnet service for remote configuration (including systems based on Windows NT). Because of security issues with Telnet, its use for this purpose has waned in favor of SSH.
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"