On Wed, Apr 29, 2015 at 10:10:26AM +0200, Rafał Radecki wrote: > Hi Everyone :) > I have a quite annoying problem on several ubuntu 12.04 servers. I know > that I should use ubuntu mailing list but I tried that with no success :) > Maybe someone here will be able to help. > When I force a dns query using: > time wget --waitretry=1 [1]http://xxx.yyy -O - > I get (tcpdump & wireshark) the info that an AAAA IPv6 query is first send > to a DNS server from /etc/resolv.conf. The server is only serving IPv4 Are you saying that xxx.yyy has both a A and an AAAA record, but is only listening on IPv4? If so, then the server is misconfigured. This is effectively the same has having two A records and not listening to requests on one of them. > queries so it responds with an error. Then an IPv4 query is sent. Overall > the process takes ~10 seconds every time so its painful. [cut] > Any clues? :D > BR, > Rafal. > > References > > Visible links > 1. http://xxx.yyy/
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