Subject: Sendmail and IPv6 was Re: DNS issues with Mozilla
To: None <netbsd-users@netbsd.org>
From: None <ipthomas@mac.com>
List: netbsd-users
Date: 05/08/2002 19:07:27
On Wednesday, May 8, 2002, at 02:00 PM, Noah L. Meyerhans wrote:

> On Wed, May 08, 2002 at 03:02:54PM +0100, Andrew Basterfield wrote:
>> In my experience Mozilla doesn't timeout and fall back to IPv4. If a 
>> site
>> has an AAAA record, and Mozilla is running on a machine with an IPv6
>> capable kernel it will assume you have an IPv6 link to the 'net.
>
> That used to be the case, but shouldn't be any more.  See mozilla bug
> http://bugzilla.mozilla.org/show_bug.cgi?id=86917  It should now try
> each address returned by getaddrinfo.
>
>> Try disabling IPv6 on the NetBSD machine (or better still get a free
>> IPv6 tunnel with freenet6.net, but remember the IPv6 firewall!)
>
> In the past, not even a good 6bone connection would help you much, since
> many web sites with AAAA records do not have reliable AAAA connections.
> I had www.netbsd.org in /etc/hosts for a while, since I could never
> access it via IPv6.

	Seeing as how the culprit is IPv6, when I disable it in the kernel 
and recompile, how do I get sendmail to behave and not produce an error 
message on startup?  I have seen mention of sendmail's problems with 
IPv6 by searching on Google, but I didn't see a fix for them.  The error 
is

opendaemon socket : daemon MTA6 : can't create server SMTP socket

	Any suggestions?  The culprit is Mozilla on NetBSD, as the web 
browser links doesn't suffer from these problems.  I'll check out the 
bug report listed above and send another one to the Mozilla developers.  
Thanks for the guidance so far.

Ian
	
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