Hi Ceki, Thank you for your response. It seems to be working.
Regards, Takuma Tsutsumi 2017-03-31 14:09 GMT+09:00 Ceki Gulcu <[email protected]>: > > > I am afraid there is not much I can do regarding the DNS queries since the > provider for the host which does not have an AAAA record does not support > IPv6. Anyway, the router/IPv6 and the Apache/IPv6 issues have been fixed. > > Even http://ready.chair6.net/?url=https://logback.qos.ch seems happy. > > > Best regards, > > -- > Ceki > > > On 3/30/2017 9:25 PM, Ceki Gulcu wrote: > >> Hi Takuma, >> >> >> There were multiple issues involved. >> >> 1) There was a router issue which dropped all IPv6 packets. >> 2) there are two DNS servers for the qos.ch domain. They are configured >> differently. >> 3) There is indeed an APache configuration problem which I am trying to >> identify. >> >> -- >> Ceki >> >> >> On 3/30/2017 6:52 AM, Takuma Tsutsumi wrote: >> >>> Hi, >>> >>> If using a user-agent that prefer IPv6 such as the Squid proxy, a >>> timeout may frequently occur on logback.qos.ch <http://logback.qos.ch>. >>> >>> It seems to me that the IPv6 site does not exist. >>> References: >>> - http://ready.chair6.net/?url=https://logback.qos.ch >>> <http://ready.chair6.net/?url=https://logback.qos.ch> >>> - http://ipv6-test.com/validate.php <http://ipv6-test.com/validate.php >>> > >>> >>> In addition, it seems that AAAA records may not be returned depending on >>> DNS query timing. >>> ``` >>> $ date; dig +noall +answer @8.8.8.8 <http://8.8.8.8> logback.qos.ch >>> <http://logback.qos.ch> aaaa >>> Thu Mar 30 22:34:03 DST 2017 >>> logback.qos.ch <http://logback.qos.ch>. 279 IN CNAME >>> yvo.qos.ch <http://yvo.qos.ch>. >>> yvo.qos.ch <http://yvo.qos.ch>. 279 IN AAAA >>> 2a02:121e:969:1:201:c0ff:fe1c:5f7c >>> >>> $ date; dig +noall +answer @8.8.8.8 <http://8.8.8.8> logback.qos.ch >>> <http://logback.qos.ch> aaaa >>> Thu Mar 30 22:34:05 DST 2017 >>> logback.qos.ch <http://logback.qos.ch>. 299 IN CNAME >>> te.qos.ch <http://te.qos.ch>. >>> ``` >>> >>> Would you please investigate this? >>> >>> Regards, >>> >>> Takuma Tsutsumi >>> >>> >>> >>> _______________________________________________ >>> logback-user mailing list >>> [email protected] >>> http://mailman.qos.ch/mailman/listinfo/logback-user >>> >>> _______________________________________________ >> logback-user mailing list >> [email protected] >> http://mailman.qos.ch/mailman/listinfo/logback-user >> > _______________________________________________ > logback-user mailing list > [email protected] > http://mailman.qos.ch/mailman/listinfo/logback-user >
_______________________________________________ logback-user mailing list [email protected] http://mailman.qos.ch/mailman/listinfo/logback-user
