Hi Ceki, Sorry to bother you again... Unfortunately, it seems that the same problem is occurring. Would you please investigate this? Regards, Takuma Tsutsumi 2017-03-31 8:37 GMT+09:00 Takuma Tsutsumi <t.tsutsumi.dev@gmail.com>:
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 <ceki@qos.ch>:
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
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