<div dir="ltr">Dominik,<div><br></div><div>Follow the records for <a href="http://www.linkedin.com">www.linkedin.com</a>.  LinkedIn uses GLB DNS resolution off of www and since glb-eu isn't working for you, that means they probably are not using that right now.</div><div><br></div><div>-Grant</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Oct 4, 2014 at 12:50 PM, Dominik Bay <span dir="ltr"><<a href="mailto:db@rrbone.net" target="_blank">db@rrbone.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I'm seeing this strange issue where LinkedIn is not working properly via<br>
IPv6.<br>
At least 2620:109:c007:102::5be1:f881 is not working in several eyeball<br>
networks in Germany, 2620:109:c006:102::6cae:281 is working, but not<br>
returned often via DNS lookup.<br>
Also the DNS RR entries change often so I can not really pinpoint what<br>
customer got which IP address back that didn't work.<br>
<br>
Is this a known issue? I'm seeing it for about 2-3 days already.<br>
<br>
Best,<br>
Dominik<br>
<br>
<br>
<br>
$ host <a href="http://www.linkedin.com" target="_blank">www.linkedin.com</a><br>
<a href="http://www.linkedin.com" target="_blank">www.linkedin.com</a> is an alias for <a href="http://pop-ela4-alpha.www.linkedin.com" target="_blank">pop-ela4-alpha.www.linkedin.com</a>.<br>
<a href="http://pop-ela4-alpha.www.linkedin.com" target="_blank">pop-ela4-alpha.www.linkedin.com</a> has address 199.101.163.129<br>
<a href="http://pop-ela4-alpha.www.linkedin.com" target="_blank">pop-ela4-alpha.www.linkedin.com</a> has IPv6 address<br>
2620:109:c00d:100::c765:a381<br>
<br>
$ telnet <a href="http://www.linkedin.com" target="_blank">www.linkedin.com</a> 80<br>
Trying 2620:109:c006:102::6cae:281...<br>
Connected to <a href="http://www.linkedin.com" target="_blank">www.linkedin.com</a>.<br>
Escape character is '^]'.<br>
^]<br>
telnet> quit<br>
Connection closed.<br>
<br>
<br>
$ host  <a href="http://glb-eu.www.linkedin.com" target="_blank">glb-eu.www.linkedin.com</a><br>
<a href="http://glb-eu.www.linkedin.com" target="_blank">glb-eu.www.linkedin.com</a> is an alias for <a href="http://pop-idb2-alpha.www.linkedin.com" target="_blank">pop-idb2-alpha.www.linkedin.com</a>.<br>
<a href="http://pop-idb2-alpha.www.linkedin.com" target="_blank">pop-idb2-alpha.www.linkedin.com</a> has address 91.225.248.129<br>
<a href="http://pop-idb2-alpha.www.linkedin.com" target="_blank">pop-idb2-alpha.www.linkedin.com</a> has IPv6 address<br>
2620:109:c007:102::5be1:f881<br>
<br>
$ telnet <a href="http://glb-eu.www.linkedin.com" target="_blank">glb-eu.www.linkedin.com</a> 80<br>
Trying 2620:109:c007:102::5be1:f881...<br>
Trying 91.225.248.129...<br>
Connected to <a href="http://glb-eu.www.linkedin.com" target="_blank">glb-eu.www.linkedin.com</a>.<br>
Escape character is '^]'.<br>
^]<br>
telnet> quit<br>
Connection closed.<br>
</blockquote></div><br></div>