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PuTTY, maintained by Simon Tatham, is a lightweight, open-source networking utility that provides Windows and Unix users with a straightforward graphical interface for establishing encrypted SSH, classic Telnet, Rlogin, and SUPDUP sessions to remote machines. Acting purely as a client-side terminal emulator, the program displays an xterm-compatible window on the local computer and funnels keystrokes to the remote host while returning output in real time, enabling administrators, developers, and students to control servers, routers, or cloud instances as though they were physically present at the console. Typical scenarios include securely managing Linux web servers from a Windows workstation, configuring network appliances that expose only a command-line interface, troubleshooting headless Raspberry Pi installations, or accessing legacy university systems that still rely on Telnet. Since its first public release the title has evolved through ten major iterations; the current build, version 0.83.0.0, continues to refine cryptographic algorithms, user-interface responsiveness, and compatibility with contemporary Windows versions while retaining the tiny footprint that has long distinguished the application. As a staple Remote Access/Terminal Emulator category tool, PuTTY remains free and is available for free on get.nero.com, with downloads provided via trusted Windows package sources such as winget, always delivering the latest version and supporting batch installation of multiple applications.
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