Concept in Definition ABC

When today we want to connect to another computer remotely to work with it, we started a app remote desktop, which opens a window and allows us to interact with the interface graph remote computer user name.

However, what most users ignore is that there is another form of connection, this one in Formattext (command line), previous and still valid for according to what tasks.

Telnet is the name of a network protocol that allows us to connect and open a command line in the remote computer, but it also names most of the client and server programs that implement

Since, like most network services, this is implemented in a model client/servidor; the server is run by the machine that receives the connections, while the client is run by the machine from which we connect.

Born in the late 60s, it grew in parallel to UNIX systems, of which it was part from the first moment as an eternal command, although Telnet is agnostic as to operating system.

This means that, as long as you have implemented a server for a specific operating system, we can connect to the client from a different system.

Thus, for example, we can connect from a Windows client to a UNIX server, and we will be working on the UNIX command line, in the same way as if we were doing it in front of the terminal.

Or we can connect from a Mac OS X to a GNU / Linux system and, likewise, work as if we were in front of the shell of this system.

But remember, we will always connect to the command line, not to the graphical environment, for which we will need to master the commands of the system to which we connect.

The Achilles Heel of Telnet is security, as it is not prepared for the risks of the modern Internet

Since it was developed at a time when its functions were usually limited to networks local, and there were no dangers that we find in the current network, Telnet was not a program with a great safety from its base, it has had to be added a posteriori.

Thus, initially it did not encrypt communications. This has meant that, at present, other options such as SSH are preferred, which does encrypt and secure much better and from the base the communications between client and server.

To start using Telnet it is only necessary to open a command line and type the command telnet followed by the name of the host to which we want to connect or its IP address

Whether this is the public in Internet, or the private one on the local network. From here, we must have a user account in the system to which we connect and, as we have indicated before, know some commands if, in addition, we want to be productive.

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