[ale] DIG failing due to ipv6?

[Robert L. Harris]

Yes,

{130}:/home/rharris>sysctl -p
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1


root at basvc01
{0}:/home/rharris>dnstracer www.speedtest.net
Tracing to www.speedtest.net[a] via 127.0.0.1, maximum of 3 retries
127.0.0.1 (127.0.0.1) Got answer [received type is cname]
|\___ ns1.xicdn.net [xicdn.net] (2606:2800:0001:0000:0000:0000:0000:0005)
send_data/sendto: Network is unreachable
* send_data/sendto: Network is unreachable
* send_data/sendto: Network is unreachable

Same results.


On Tue, Apr 12, 2016 at 4:46 PM Alex Carver <agcarver+ale at acarver.net>
wrote:

> Have you tried fully disabling ipv6 via sysctl?
>
> On 2016-04-12 15:27, Robert L. Harris wrote:
> > Ok, this is un-related to my previous IPv6 question, as this is for work
> and we
> > do not have IPv6 rolled out. We are trying to look up a signle sign on
> page
> > hosted in azure and it looks like dns is failing because my bind9 is
> geting an
> > IPv6 address for the dns server but can't get to it to query the real
> DNS name.
> >
> >
> >
> > I thought I disabled IPv6 resolution and forced IPv4 only but it doesn't
> seem to
> > be working. Anyone have any ideas?
> >
> > {0}:/home/rharris>dig signin.company.com <http://signin.company.com>
> >
> > ; <<>> DiG 9.9.5-3ubuntu0.1-Ubuntu <<>> signin.company.com
> > <http://signin.company.com>
> > ;; global options: +cmd
> > ;; Got answer:
> > ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 41491
> > ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
> >
> > ;; OPT PSEUDOSECTION:
> > ; EDNS: version: 0, flags:; udp: 4096
> > ;; QUESTION SECTION:
> > ;signin.company.com <http://signin.company.com>. IN A
> >
> > ;; Query time: 194 msec
> > ;; SERVER: 127.0.0.1#53(127.0.0.1)
> > ;; WHEN: Tue Apr 12 16:21:56 MDT 2016
> > ;; MSG SIZE rcvd: 47
> >
> >
> > {0}:/home/rharris>dnstracer signin.company.com <
> http://signin.company.com>
> > Tracing to signin.company.com <http://signin.company.com>[a] via
> 127.0.0.1,
> > maximum of 3 retries
> > 127.0.0.1 (127.0.0.1) Got answer [received type is cname]
> > |\___ prd1.azuredns-cloud.net <http://prd1.azuredns-cloud.net>
> > [azurewebsites.net <http://azurewebsites.net>]
> > (2a01:0111:2005:0005:0000:0000:0000:0005) send_data/sendto: Network is
> unreachable
> > * send_data/sendto: Network is unreachable
> > * send_data/sendto: Network is unreachable
> > *
> > |\___ prd1.azuredns-cloud.net <http://prd1.azuredns-cloud.net>
> > [azurewebsites.net <http://azurewebsites.net>] (204.79.195.43)
> > |\___ prd4.azuredns-cloud.net <http://prd4.azuredns-cloud.net>
> > [azurewebsites.net <http://azurewebsites.net>]
> > (2a01:0111:2032:0001:0000:0000:0000:0005) send_data/sendto: Network is
> unreachable
> > * send_data/sendto: Network is unreachable
> > * send_data/sendto: Network is unreachable
> > .
> > .
> > .
> > <til failure>
> >
> >
> >
> >
> > Anyone have any ideas how to resolve this?
> >
> >
> > Robert
> >
> >
> >
> > _______________________________________________
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> >
>
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