PuTTY

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This article is about the remote shell client. For the type of material, see Putty.

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PuTTY
PuTTY icon 128px.png
PuTTY Ubuntu.png
A screenshot of PuTTY running under Ubuntu MATE
Developer(s) Simon Tatham
Initial release November 19, 1998; 26 years ago (1998-11-19)[1]
Stable release 0.66 / November 7, 2015; 9 years ago (2015-11-07)
Written in C
Operating system Windows, Linux and OS X
Type Terminal emulator
License MIT license
Website www.chiark.greenend.org.uk/~sgtatham/putty

PuTTY (/ˈpʌti/[2]) is a free and open-source terminal emulator, serial console and network file transfer application. It supports several network protocols, including SCP, SSH, Telnet, rlogin, and raw socket connection. It can also connect to a serial port (since version 0.59). The name "PuTTY" has no definitive meaning.[3]

PuTTY was originally written for Microsoft Windows, but it has been ported to various other operating systems. Official ports are available for some Unix-like platforms, with work-in-progress ports to Classic Mac OS and Mac OS X, and unofficial ports have been contributed to platforms such as Symbian,[4][5] Windows Mobile and Windows Phone.

PuTTY was written and is maintained primarily by Simon Tatham and is currently beta software.

Features

PuTTY supports many variations on the secure remote terminal, and provides user control over the SSH encryption key and protocol version, alternate ciphers such as 3DES, Arcfour, Blowfish, DES, and Public-key authentication. It also can emulate control sequences from xterm, VT102 or ECMA-48 terminal emulation, and allows local, remote, or dynamic port forwarding with SSH (including X11 forwarding). The network communication layer supports IPv6, and the SSH protocol supports the zlib@openssh.com delayed compression scheme. It can also be used with local serial port connections.

PuTTY comes bundled with command-line SCP and SFTP clients, called "pscp" and "psftp" respectively.

History

PuTTY's development dates back to late 1998,[1] and it has been a usable SSH-2 client since October 2000.[6][7]

Components

PuTTY consists of several components:

  • PuTTY: the Telnet, rlogin, and SSH client itself, which can also connect to a serial port (since version 0.59)
  • 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

Reception

Justin James of TechRepublic cited its reliability, cost, cross platform support, and features as positives. He faulted complex configuration, extended beta testing, and lack of support for scripting.[8] J. Peter Bruzzese of InfoWorld included it in his list of 15 Essential Open Source Tools for Windows Admins and wrote that its imitators are not as good.[9]

See also

References

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External links

  1. ↑ 1.0 1.1 Revision 1 in PuTTY SVN
  2. ↑ Putty FAQ – Pronunciation
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found. though "tty" is the name for a terminal in the Unix tradition, usually held to be short for Teletype, and putty is material for sealing glass in window frames, and may refer to Microsoft Windows lacking a built in SSH client.[citation needed]
  4. ↑ PuTTY for Symbian OS
  5. ↑ Forum Nokia Wiki – PuTTY for Symbian OS
  6. ↑ PuTTY FAQ: Does PuTTY support SSH-2?
  7. ↑ PuTTY Change Log
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
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