[AusNOG] Optus outage last night?

[Evan Dent]

The thing is even if you have multiple name servers, if the request NS does
not time out, the client will not then move onto the next NS .

I am unsure about the specifics  Optus incident

I have it before where a site has its forwarders set to a central location.
The site has local internet connectivity and connectivity to the central
location but the central location lost its internet link.

Although. Multiple forwarders were set, because the central ones were at
the top of the list and were able to be contacted but could not resolve
anything, the site on the edge was unable to browse the web.

On 5 Jul. 2017 4:42 pm, "Narelle" <narellec at gmail.com> wrote:

> Well, my home gateway points at more than one DNS... as should all
> home gateways... ns1.<providername>.au ns2.<providername>.au (from
> memory) google-public-dns-a.google.com ...
>
> So was ns1.optusnet.com.au *and* ns2.optusnet.com.au down? Or both being
> DoSsed?
>
> One can't help wondering about dhcp settings... and redundancy
> architectures...
>
> On Wed, Jul 5, 2017 at 2:12 PM, Jason Firmino <jason.firmino at gmail.com>
> wrote:
> > I was just watching some youtube tutorials on my phone and completely
> lost
> > connection. No DNS nothing...
> > Tried to access the web. Nothing.
> >
> > Rebooted the router. Didn't work. So as I didn't have any patience to
> debug
> > after a hard day at work, I just went to sleep with the hopes of it being
> > restored once I woke up.
> >
> > And so it was :D
> >
> > Cheers,
> >
> > On Wed, 5 Jul 2017 at 14:07 A <clonemeagain at gmail.com> wrote:
> >>
> >> That's a very effective torrent blocker they've implemented. Kudos
> Optus!
> >>
> >> On 5 July 2017 at 13:52, Nathan Brookfield
> >> <Nathan.Brookfield at simtronic.com.au> wrote:
> >>>
> >>> DNS servers weren't responding to requests in any way.
> >>>
> >>>
> >>> Kindest Regards,
> >>>
> >>> Nathan Brookfield (VK2NAB)
> >>>
> >>>
> >>>
> >>> Chief Executive Officer
> >>>
> >>> Simtronic Technologies Pty Ltd
> >>>
> >>>
> >>>
> >>> Local: (02) 4749 4949 | Fax: (02) 4749 4950 | Direct: (02) 4749 4951
> >>>
> >>> Web: http://www.simtronic.com.au | E-mail:
> >>> nathan.brookfield at simtronic.com.au
> >>>
> >>>
> >>>
> >>> ________________________________
> >>> From: AusNOG <ausnog-bounces at lists.ausnog.net> on behalf of Narelle
> >>> <narellec at gmail.com>
> >>> Sent: Wednesday, 5 July 2017 1:49 PM
> >>> To: ausnog at ausnog.net
> >>> Subject: [AusNOG] Optus outage last night?
> >>>
> >>> Did anyone notice what exactly happened with Optus services last night?
> >>>
> >>> I admit - it didn't interrupt my viewing of streaming TV... but there
> >>> is a lot in the media, so wondering what exactly it was.
> >>>
> >>>
> >>> --
> >>>
> >>>
> >>> Narelle
> >>> narellec at gmail.com
> >>> _______________________________________________
> >>> AusNOG mailing list
> >>> AusNOG at lists.ausnog.net
> >>> http://lists.ausnog.net/mailman/listinfo/ausnog
> >>>
> >>> _______________________________________________
> >>> AusNOG mailing list
> >>> AusNOG at lists.ausnog.net
> >>> http://lists.ausnog.net/mailman/listinfo/ausnog
> >>>
> >>
> >> _______________________________________________
> >> AusNOG mailing list
> >> AusNOG at lists.ausnog.net
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>
>
>
> --
>
>
> Narelle
> narellec at gmail.com
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
>
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