It can be used for a lot of protocols, including Telnet and VNC.
Telnet does not encrypt anything; that is why it is too insecure to use as a network protocol.
ssh protocol
Telnet can be used to get into certain routers and other devices in the network. This will aid in the troubleshooting process because the devices support that protocol but it should be noted that it is a very insecure protocol and should never be used from outside the network to the inside of the network.
Telnet
Yes, you can, but this is a very dangerous thing to do. Firstly, telnet is an insecure protocol, and anyone with a packet sniffer can find out your root password. Secondly, one should really never log in as the root account; use su or sudo after logging in as an ordinary user using a more secure protocol such as ssh. There are some settings in some versions of telnet that may prevent root logins, but the standard telnet will allow that.
Telnet
i think is Telnet
Telnet is similar to HTTP and FTP in that all three use the TCP protocol for connection-oriented
Telnet is a protocol for transferring plain text over TCP .
ssh
telnet..