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Re: Securing telnet



On Tue, Jul 04, 2000 at 03:29:16PM +0100, Patrick Kirk wrote:
> Hi all,
> 
> I've just installed a Debian server for a chap who insists on using
> telnet from Windows boxes within the LAN if he wants to login.  I want
> to restrict this so that telnet can be done from the 10.0.0.0 range but
> ssh can be used from anywhere, even if reverse DNS isn't available.
> That's because I want to be able to login myself and fix things from
> wherever I happen to be.
> 
> I have set hosts.deny as blank and hosts.allow as ALL: ALL

This is dangeroous.  /etc/hosts.deny should be "ALL:ALL", and selected
clients should be allowed for selected domains in /etc/hosts.allow.

> Any thoughts on how to set up the rules to allows the setup above?

I'd also look into ssh clients for Windows.  I know there are Java
clients available.

-- 
Karsten M. Self <kmself@ix.netcom.com>     http://www.netcom.com/~kmself
 Evangelist, Opensales, Inc.                    http://www.opensales.org
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   http://gestalt-system.sourceforge.net/    K5: http://www.kuro5hin.org
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