There are vulnerabilities in TCP / IP (it is not encrypted), it must have Computer Knowledge (knowledge of commands) since it is not used graphical environment, the commands must be used to be able to maneuver in the server to which we connect remotely.
This impressive Telnet and SSH client will allow you to connect to any remote machine to use it through your terminal in a simple way from windows. Despite its simplicity, it has many more options than other paying customers. This manual also offers an introduction to the use of SSH, explaining the differences between SSL Shell and Telnet. Discover the main PuTTY features and learn how to start an SSH session using your username and password.
The Telnet client part is more unknown to me, but the clearest example of use is to connect to our home router to configure it through Telnet and open ports, etc. In short, with PuTTY we managed to open a command line session on the remote server to manage. One question that may arise is why use PuTTY? What are its advantages? This application is like all, it has its good parts and bad parts, but if it is true that it mostly has great advantages such as the following: It is free and open source.
Available for several platforms (Windows and Linux).
It is a portable application.
Simple and manageable interface.
Very complete and offers great flexibility with many options.
It is in constant development.