Free pscp software for linux

sshproxy is a pure Python implementation of an SSH proxy.
sshproxy allows users to connect to remote sites without having to remember the password or key of the remote sites.
How do I use it ?
Here is an overview of a normal ssh session:
me@myhost $ ssh -tp 2242 me@proxy remote-site
root@remote-site #
... doing some administration commands ...
root@remote-site # exit
me@myhost $
Here is the same with the pssh shell wrapper:
me@myhost $ pssh remote-site
root@remote-site #
... doing some administration commands ...
root@remote-site # exit
me@myhost $
You can also execute remote commands:
me@myhost $ pssh remote-site uname -a
nova.wallix.com
me@myhost $
Here is an example of an scp transfert:
me@myhost $ scp /etc/issue me@proxy:root@remote-site:/etc/issue.new
me@myhost $
And the same with the pscp shell wrapper:
me@myhost $ pscp /etc/issue remote-site:/etc/issue.new
me@myhost $
Enhancements:
- Since the 0.4 branch, the database backend has been split in three different and independent backends: client, ACL, and site.
- Authorization policies are now easier to define, and limited only by your imagination.
- A simple and powerful ACL engine has been put into the heart of sshproxy.
- The plugin architecture allows virtually any extension or modification of sshproxy.

PuTTY project is a client program for the SSH, Rlogin and Telnet network protocols.
These protocols are all used to run a remote session on a computer, over a network. PuTTY implements the client end of that session: the end at which the session is displayed, rather than the end at which it runs.
In really simple terms: you run PuTTY on a Windows machine, and tell it to connect to (for example) a Unix machine. PuTTY opens a window.
Then, anything you type into that window is sent straight to the Unix machine, and everything the Unix machine sends back is displayed in the window. So you can work on the Unix machine as if you were sitting at its console, while actually sitting somewhere else.
Main features:
- 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)
LEGAL WARNING: Use of PuTTY, PSCP, PSFTP and Plink is illegal in countries where encryption is outlawed. I believe it is legal to use PuTTY, PSCP, PSFTP and Plink in England and many other countries, but I am not a lawyer and so if in doubt you should seek legal advice before downloading it.
Enhancements:
- Mostly bugfixes.