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
logback-user@qos.ch
http://mailman.qos.ch/mailman/listinfo/logback-user
_______________________________________________
logback-user mailing list
logback-user@qos.ch
http://mailman.qos.ch/mailman/listinfo/logback-user
