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PuTTY facts for kids

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PuTTY main configuration dialog on Windows
Developer(s) Simon Tatham
Stable release
0.72 / July 20, 2019 (2019-07-20)
Written in C
Operating system Cross-platform
Type Terminal emulator
License MIT License

PuTTY is a terminal emulator application which can act as a client for the SSH, Telnet, rlogin, and raw TCP computing protocols. The word "PuTTY" has no meaning, though 'tty' is sometimes used to refer to the Unix terminals, as an acronym for 'teletype'.

PuTTY was first written for Microsoft Windows, but it has been ported to other operating systems including some Unix-like platforms. Mac OS and Mac OS X are still being ported, while unofficial ports have been ported it to the Symbian and Windows Mobile operating systems.

PuTTY is currently beta software. Licensed under the MIT License, and it is free and open source software.


Some features of PuTTY are:

Main Programs

Putty windowsvista
PuTTY running a session on Windows Vista.

The versions available are made up of some or all of the following programs:

  • PuTTY - the Telnet and SSH client itself;
  • PSCP - an SCP client, i.e. command-line secure file copy;
  • PSFTP - an SFTP client, i.e. general file transfer sessions much like FTP;
  • PuTTYtel - a Telnet-only client;
  • Plink - a command-line interface to the PuTTY back ends;
  • Pageant - an SSH authentication agent for PuTTY, PSCP and Plink;
  • PuTTYgen - an RSA and DSA key generation utility;
  • pterm - a standalone terminal emulator.

Related pages

  • Development libraries related to PuTTY
    • Other versions of PuTTY (for Windows):
              • Other programs related to PuTTY
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