[lug] replacing login shell

[Hugh Brown]

It just needs to show the login prompt.  It is an attempt to secure more
of the traffic between an end user and the legacy telnet host.

Right now the host is mostly wide open with straight telnet access.  We
are setting up an ssh port forwarding tunnel to a machine that is "next
to" the legacy host.  This way, only the last leg is unencrypted instead
of the whole path.

I'm just trying to be careful so that even though anyone can log on to
the port forwarding host, all they get is a login prompt to the legacy
application instead of the ability to play around on the linux system.

Hugh


On Tue, 2002-06-25 at 13:55, Chip Atkinson wrote:
> It depends on the complexity of the telnet session, but you may wish to
> consider either expect or the expect perl modules.
> 
> One of the best things about expect is that you can control the speed at
> which characters are sent.  This is very important in some situations
> because most of the characters that are just blasted at the speed of a
> bash here document come so fast that they get lost.
> 
> Chip
> 
>  On 25 Jun 2002, Hugh Brown wrote:
> 
> > I have tasked with creating a replacement login shell to force telnet to
> > another machine.
> >
> > We have a web applet that uses jta to login via ssh (no keys) to a
> > system.  when it logs in we want it to start up telnet to a legacy host
> > that only accepts telnet.
> >
> > what is the right way to do it?
> >
> > I was looking at writing a bash script that trapped all signals and
> > started up a telnet session.
> >
> > Are there any gotchas I should watch out for?
> >
> > Hugh
> >
> >
> >
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