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Spelling: SSH
SecureSHell is an enhanced Shell [1] used for secure (encrypted)
communication with a remote computer. It is the preferred replacement
for Telnet [2].
SSH
SSH [3] encrypts ALL traffic.
The login transaction and all further traffic is secured against
casual eavesdropping.
It is worth mentioning that SCP is a Secure CoPy program that adheres
to the same principal and is usually (?) packaged with the SSH
program.
TELNET
Telnet [4] is a shell WITHOUT any security features (encryption).
Login passwords and all further transmissions are _sent in the
clear_. ie:- anyone with access to the traffic has the potential to
read it.
Telnet [5] still has it's uses (checking mail accounts, server
versions) and SSH [6] can be vulnerable, however for any traffic sent
over an open network (MelbourneWireless), SSH provides a suitable
level of protection.
WHERE TO GET IT.
SSH [7] - commercial version
OpenSSH [8] - a FREE version of the SSH protocol suite (BSD Licence)
Putty [9] - PuTTY [10] is a free implementation of Telnet and SSH for
Win32 and Unix platforms
The front page of OpenSSH.org [11] has a comprehensive listing of SSH
alternatives for most Operating Systems, under the ALTERNATIVES menu.
Links:
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[1] http://melbournewireless.org.au/?Shell
[2] http://melbournewireless.org.au/?Telnet
[3] http://melbournewireless.org.au/?SSH
[4] http://melbournewireless.org.au/?Telnet
[5] http://melbournewireless.org.au/?Telnet
[6] http://melbournewireless.org.au/?SSH
[7] http://www.ssh.com/
[8] http://www.openssh.org/
[9] http://putty.obengelb.de/
[10] http://melbournewireless.org.au/?PuTTY
[11] http://www.openssh.org/
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