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> Isn't there a perl script designed to help out with this that is 
> available with SSH?
Don't know.

> Dow
Bob


> Bob Toxen wrote:
> 
> >On Sat, Oct 23, 2004 at 07:26:17PM -0400, Jim Popovitch wrote:
> > 
> >
> >>I believe the man-in-middle message is derived from accessing a server
> >>that has a different server key cached in ~/.ssh/known_hosts.  You
> >>should be able access the same box by multiple names/IPs without getting
> >>that notice.  I suspect that you are reusing a host name from one box on
> >>anther box and that your known_hosts file still has an entry from old
> >>host.
> >>   
> >>
> >Yes, the warning about the MITM is if the known_hosts host key is 
> >different.
> >However, SSH is too stupid to correlate with the IP rather than the one of
> >many names used to derive the IP -- OR --- maybe they are trying to cope
> >with dynamic IP, in which case their scheme does work.  If the latter, it
> >was a poor design choice as it's rare that a server has a dynamic IP.
> >
> >I too find this annoying.
> >
> >Bob Toxen
> >bob at verysecurelinux.com               [Please use for email to me]
&gt; &gt;<a  rel="nofollow" href="http://www.verysecurelinux.com";>http://www.verysecurelinux.com</a>        [Network&amp;Linux/Unix security 
&gt; &gt;consulting]
&gt; &gt;<a  rel="nofollow" href="http://www.realworldlinuxsecurity.com";>http://www.realworldlinuxsecurity.com</a> [My book:&quot;Real World Linux Security 
&gt; &gt;2/e&quot;]
&gt; &gt;Quality Linux &amp; UNIX security and SysAdmin &amp; software consulting since 
&gt; &gt;1990.
&gt; &gt;
&gt; &gt;&quot;Microsoft: Unsafe at any clock speed!&quot;
&gt; &gt;  -- Bob Toxen 10/03/2002
&gt; &gt;
&gt; &gt; 
&gt; &gt;
&gt; &gt;&gt;-Jim P.
&gt; &gt;&gt;   
&gt; &gt;&gt;
&gt; &gt;
&gt; &gt; 
&gt; &gt;
&gt; &gt;&gt;On Sat, 2004-10-23 at 16:44 -0400, David Corbin wrote:
&gt; &gt;&gt;   
&gt; &gt;&gt;
&gt; &gt;&gt;&gt;If I ever reference a host on a ssh command by an alternate name, it 
&gt; &gt;&gt;&gt;&quot;fails&quot; with a message warning about the possibility of a man in the 
&gt; &gt;&gt;&gt;middle attack.  Is there any way to tell ssh to not pester me about 
&gt; &gt;&gt;&gt;this, or to list several hostnames for the same RSA key?
&gt; &gt;&gt;&gt;
&gt; &gt;&gt;&gt;david
&gt; &gt;&gt;&gt;     
&gt; &gt;&gt;&gt;
&gt; &gt;_______________________________________________
&gt; &gt;Ale mailing list
&gt; &gt;Ale at ale.org
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&gt; &gt;
&gt; &gt; 
&gt; &gt;


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<li><strong><a name="00885" href="msg00885.html">[ale] ssh - no spoofing check</a></strong>
<ul><li><em>From:</em> esoteric at 3times25.net (Geoffrey)</li></ul></li>
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<li><strong><a name="00841" href="msg00841.html">[ale] ssh - no spoofing check</a></strong>
<ul><li><em>From:</em> dcorbin at machturtle.com (David Corbin)</li></ul></li>
<li><strong><a name="00845" href="msg00845.html">[ale] ssh - no spoofing check</a></strong>
<ul><li><em>From:</em> jimpop at yahoo.com (Jim Popovitch)</li></ul></li>
<li><strong><a name="00871" href="msg00871.html">[ale] ssh - no spoofing check</a></strong>
<ul><li><em>From:</em> bob at verysecurelinux.com (Bob Toxen)</li></ul></li>
<li><strong><a name="00876" href="msg00876.html">[ale] ssh - no spoofing check</a></strong>
<ul><li><em>From:</em> Dow.Hurst at mindspring.com (Dow Hurst)</li></ul></li>
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