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PuTTY is a free SSH and Telnet client for Windows, but is now also available for UNIX systems including Linux. It is small and includes a terminal emulator, which makes it ideal to use when you're stuck on a Windows machine, but need to access your Linux machine.

Besides PuTTY, there are also several companion tools available:

  • PSCP -- PuTTY Secure Copy, a SCP client.
  • PSFTP -- PuTTY sftp client
  • Plink -- PuTTY Link, command line interface, useful in scripts
  • PuTTYgen -- generate SSH public and private keys
  • Pageant -- SSH authentication agent for PuTTY, PSCP and Plink
  • pterm -- PuTTY's terminal emulator for UNIX

For GUI SCP and SFTP client see WinSCP

See also