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? >> >> 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. > > 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. > > The only troublesome applications I still encounter these days are > Munin (monitoring stuff: http://www.munin-monitoring.org/) and anything > that's Java based. > > 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. > 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=False to correct the errant default behavior. Owen
