Rsh works one direction

[Matt Alexander]

Roderick Ford wrote:
> Okay Darrin,
> I do have a question for you.
> Is rsh bad for security on an internal LAN if the members of the LAN
> are fully trusted?
>
> The situation is this: I use ssh as my PVM_RSH already for the Linux
> boxes, but am trying to pull in the childrens' Windows (please excuse
> the bad language) boxes using PVM3.4.  So if my 5 year oldest child
> wants to hack into my internal boxes via the insecurities of RSH, then
> I will encourage him to do so at my expense, for his experience. 
> However, behind my firewall that gives me some sense of security, is
> rsh still a external network risk?
>
> Rod
>

You could also use SSH with PVM if you want to give your 5 year old a
bigger challenge.  ;-)
Set  PVM_RSH=/usr/bin/ssh and setup password-less logins with
ssh-keygen.  This would simplify your server config too.
~M