Florian,
thjere was a long thread on this subject early last year either
here or on k12osn list. We all agreed that some things are possible, but
hard to implement. The only easy implementation is full network traffic
encryption done in hardware. Intel makes cards that do this.
Quick reality check - if you can run a sniffer, you can put a
keyboard intercept module on a pc .... julius
On Wed, 19 Feb 2003, Florian Thiel wrote:
> Hi!
>
> Can anyone issue any suggestions or report experiences encrypting the
> network traffic in an LTSP environment? Since keypresses and everything
> (e.g. every password you enter on a LTSP workstation, be it ssh or not)
> travel the LAN in plaintext (X events), encryption is crucial for
> large-scale adoptions.
>
> (To demonstrate the effects, I once created too small perl scripts, one
> that sniffed X magic cookies and one that iterated over the list of
> known cookies and used them to switch display background colors. After a
> few minutes I had a whole room of machines happily blinking... Very
> impressive).
>
> IPSec would come into mind but is very expensive (CPU cycles) and would
> need a powerful centralized IPSec Gateway...
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