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From: Owen DeLong <owen@delong.com> In-Reply-To: <20110126191710.GB1495@sekishi.zefyris.com> Date: Wed, 26 Jan 2011 12:44:24 -0800 To: Francois Tigeot <ftigeot@wolfpond.org> Cc: nanog@nanog.org Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org On Jan 26, 2011, at 11:17 AM, Francois Tigeot wrote: > On Wed, Jan 26, 2011 at 10:22:40AM -0800, Charles N Wyble wrote: >> For the most part, I'm a data center/application = administrator/content >> provider kind of guy. As such, I want to provide all my web content = over >> ipv6, and support ipv6 SMTP. What are folks doing in this regard? >>=20 >> Do I just need to assign ip addresses to my servers, add AAAA records = to >> my DNS server and that's it? I'm running PowerDNS for DNS, Apache for >> WWW. Postfix for SMTP. >=20 > Depending on your local configuration, you may have to change some = minor > options (e.g add a IPv6 Listen line for Apache), but yeah, in general = it's > as simple as adding an AAAA record in the DNS. >=20 > The only troublesome applications I still encounter these days are > Munin (monitoring stuff: http://www.munin-monitoring.org/) and = anything > that's Java based. >=20 > If its running on a IPv6-enabled host, Java wants to use IPv6 sockets = for > everything - including IPv4 connections. If you're not on a broken BSD or Windows implementation, that shouldn't = be a problem. It would be nice if BSD would correct their IPV6_V6ONLY behavior instead of putting up an alleged security red herring. I'm not sure why = Micr0$0ft suffers from this braindeath. > Most modern operating systems do not allow this; you have to force the = use > of either IPv4 or IPv6 and disable the other protocol. >=20 Not true. Other than BSD/Windows, most modern operating systems actually follow the RFCs in this regard. Even most of the BSD derivatives will = allow you to correctly set IPV6_V6ONLY=3DFalse to correct the errant default behavior. Owen
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