PuTTY is a client program for the SSH, Telnet and Rlogin community protocols.
those protocols are all used to run a faraway consultation on a pc, over a community. PuTTY implements the customer end of that session: the cease at which the consultation is displayed, instead of the give up at which it runs.
In definitely easy phrases: you run PuTTY on a windows gadget, and tell it to connect with (as an instance) a Unix machine. PuTTY opens a window. Then, whatever you type into that window is despatched directly to the Unix gadget, and the entirety the Unix device sends lower back is displayed inside the window. so that you can paintings at the Unix system as in case you had been sitting at its console, whilst truly sitting some place else.
This down load includes the subsequent gear:
PuTTY (the Telnet and SSH purchaser itself)
% (an SCP purchaser, i.e. command-line cozy file replica)
PSFTP (an SFTP purchaser, i.e. popular report transfer sessions similar to FTP)
PuTTYtel (a Telnet-most effective patron)
Plink (a command-line interface to the PuTTY back ends)
pageant (an SSH authentication agent for PuTTY, percent and Plink)
PuTTYgen (an RSA and DSA key technology application).
- Security fix: an integer overflow bug in the agent forwarding code.
- Security fix: the Windows PuTTY binaries should no longer be vulnerable to hijacking by specially named DLLs in the same directory (on versions of Windows where they previously were).
- Windows PuTTY no longer sets a restrictive process ACL by default, because this turned out to inconvenience too many legitimate applications such as NVDA and TortoiseGit. You can still manually request a restricted ACL using the command-line option -restrict-acl.
- The Windows PuTTY tools now come in a 64-bit version.
- The Windows PuTTY tools now have Windows's ASLR and DEP security features turned on.
- Support for elliptic-curve cryptography (the NIST curves and 25519), for host keys, user authentication keys, and key exchange.
- Support for importing and exporting OpenSSH's new private key format.
- Host key preference policy change: PuTTY prefers host key formats for which it already knows the key.
- Run-time option (from the system menu / Ctrl-right-click menu) to retrieve other host keys from the same server (which cross-certifies them using the session key established using an already-known key) and add them to the known host-keys database.
- The Unix GUI PuTTY tools can now be built against GTK 3.
- There is now a Unix version of Pageant.