Putty is SSH client and free Telnet for platforms Windows 32 bits. He allows to be connected to a distant server from a computer linked to Internet.Using this type of interface, there is no need for you to be sitting at the same machine you are typing commands to. The commands, and responses, can be sent over a network, so you can sit at one computer and give commands to another one, or even to more than one.
Features of Putty : The storing of hosts and preferences for later use.
Control over the SSH encryption key and protocol version.
Command-line SCP and SFTP clients, called "pscp" and "psftp" respectively.
Control over port forwarding with SSH (local, remote or dynamic port forwarding), including built-in handling of X11 forwarding.
Emulates most xterm, VT102 control sequences, as well as much of ECMA-48 terminal emulation.
IPv6 support.
Supports 3DES, AES, Arcfour, Blowfish, DES.
Public-key authentication support.
Support for local serial port connections.