PuTTY is a popular, open-source software tool primarily used for connecting to remote servers via various network protocols, such as SSH (Secure Shell), Telnet, and Rlogin. It is widely used by system administrators and developers to securely manage servers, transfer files, and perform various tasks remotely. PuTTY allows users to create a secure terminal session with a server, providing a command-line interface for interacting with the server's operating system.
PuTTY is especially favored for its simplicity, lightweight nature, and support for various encryption protocols, making it a go-to tool for secure communications. It is available for Windows, Linux, and macOS, and while it's most commonly used for SSH connections, it also supports other network protocols like SCP (Secure Copy Protocol) for file transfers. With its customizable settings for terminal appearance, session management, and logging, PuTTY is an essential tool for managing remote systems efficiently and securely.