<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Sep 13, 2016 at 10:59 AM, <span dir="ltr"><<a href="mailto:aleksey.maksimov@it-kb.ru" target="_blank">aleksey.maksimov@it-kb.ru</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">nslookup resolves names on the engine and hosts without ipv6 address:<br>
<br>
# nslookup <a href="http://mirrorlist.centos.org" rel="noreferrer" target="_blank">mirrorlist.centos.org</a><br>
<br>
Server: 10.1.0.10<br>
Address: 10.1.0.10#53<br>
<br>
Non-authoritative answer:<br>
Name: <a href="http://mirrorlist.centos.org" rel="noreferrer" target="_blank">mirrorlist.centos.org</a><br>
Address: 67.219.148.138<br>
Name: <a href="http://mirrorlist.centos.org" rel="noreferrer" target="_blank">mirrorlist.centos.org</a><br>
Address: 85.236.43.108<br>
Name: <a href="http://mirrorlist.centos.org" rel="noreferrer" target="_blank">mirrorlist.centos.org</a><br>
Address: 212.69.166.138<br>
Name: <a href="http://mirrorlist.centos.org" rel="noreferrer" target="_blank">mirrorlist.centos.org</a><br>
Address: 216.176.179.218<br>
<br>
Why oVirt updates checking process trying to use ipv6 ?<br>
<br></blockquote><div><br></div><div><br></div><div>I had a similar problem some days ago with a CentOS 7 system, but it was general and unrelated to ovirt itself.</div><div>If I remember correctly the problem was that originally it was configured by anaconda with NetworkManager and ipv6 and yum worked well.</div><div>Then I stopped and disabled NetworkManager service (the "network" service is already enabled by default, so no action for it) but I didn't remove all the IPV6 entries inside the anaconda-configured ifcfg-eno16780032 file in my /etc/sysconfig/network-scripts directory</div><div>I also created a /etc/sysctl.d/noipv6.conf file with:</div><div><div>net.ipv6.conf.all.disable_ipv6 = 1</div><div>net.ipv6.conf.default.disable_ipv6 = 1</div></div><div><br></div><div>But I got the ipv6 problem when trying in general to run "yum update"</div><div>After wiping ipv6 entries in ifcfg-xxx file all went well.</div><div>Could it be that in some ifcfg-* files you still have any reference to ipv6?</div><div><br></div><div>Also, I had to run </div><div>systemctl restart network</div><div><br></div><div>HIH,</div><div>Gianluca</div><div><br></div></div></div></div>