PLINK and/or PuTTY -- Logon to Linux with no Privileges



I need a forwarding application that people I'm working with can run from
behind restrictive firewalls so VNC can be tunneled through it. I figured
it would be possible to use putty or plink on port 443 so it would look
like HTTPS to a firewall (is that right -- will the firewall think
encrypted data from putty/plink is the same as HTTPS?).

The biggest problem I see is that I'll have several different people using
putty or plink to log into my system and there is no need for them to
actually have access to anything (other than the ability to log out). All
I need is the port forwarding.

I'm running Linux. Is there a way to set up a restricted login (even if I
have to kill it with a kill command instead of them logging out) for putty
or plink? Or is there a way to set up an account for others to log in to
that has no rights except the ability to log out?

Thanks for any help, links or info on this.

Hal
.



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