Great Circle Associates Firewalls
(November 1996)
 

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Subject: Re: Plain-text passwords
From: Chai Harjo <c . harjo @ student . anu . edu . au>
Date: Fri, 08 Nov 1996 21:00:05 +1100
To: Damien Miller <dmiller @ vitnet . com . sg>
Cc: Lawrence Beobachter <larry @ spmu . runnet . ru>, firewalls @ GreatCircle . COM
References: <Pine . LNX . 3 . 92 . 961108113028 . 206B-100000 @ mothra . io . com . au>
Reply-to: c . harjo @ student . anu . edu . au

Damien Miller wrote:
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> 
> On Thu, 7 Nov 1996, Lawrence Beobachter wrote:
> 
> > Hello!
> >
> > I tried tcpdump on FreeBSD and it turned out that login information
> > during telnet sessions as well as USER and PASS info sent by pop-client
> > are both xmitted in plain text <shudder>.
> > Is there any solution besides S/Key (please, include pointers) to
> > block this don't-know-how-to-call-it hole.
> 
> Have a look at SSLeay and SSLtelnet. SSL is an excellent freeware
> implementation of Netscape's SSL (Secure Socket Layer) encryption
> standard. SSL telnet is a patched version of telnet and telnetd which can
> use SSL.
> 
> I have SSL telnet configured on our firewall machine to reject all
> non-encrypted telnet connections.
> 
> You can get clients for Windows and unix. There are also freely available
> SSLftp and a SSL version of apache.
> 
> ftp://ftp.psy.uq.oz.au/pub/Crypto/SSL             (SSL library)
> ftp://ftp.psy.uq.oz.au/pub/Crypto/SSLapps         (SSL apps)
> 
> Regards,
> Damien Miller
> 

Does Linux do the same thing too?


Regards,

Chai


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