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Date: Mon, 3 Mar 2008 22:00:05 GMT
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To: freebsd-bugs@FreeBSD.org
From: Bruce Cran <bruce@cran.org.uk>
Cc: 
Subject: Re: bin/97499: one of sshd_config(5) options does not work
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The following reply was made to PR bin/97499; it has been noted by GNATS.

From: Bruce Cran <bruce@cran.org.uk>
To: bug-followup@FreeBSD.org, arnoldlee_chn@yahoo.com
Cc:  
Subject: Re: bin/97499: one of sshd_config(5) options does not work
Date: Mon, 03 Mar 2008 21:58:10 +0000

 The UseDNS option doesn't enable/disable DNS lookups, but 
 enables/disables validation of connections
 based on host information.  As discussed at 
 http://lists.freebsd.org/pipermail/freebsd-stable/2006-November/030886.html
 there are more reasons a DNS lookup may be done.  I'm not sure why the 
 behaviour would have changed
 between 6.0 and 6.1 though.  I've checked that setting UseDNS to "no" on 
 6.3 results in DNS lookups being
 done even with the sshd flag "-u0". I'll try 6.0 and see if I can track 
 down what's changed.
 
 --
 Bruce