[AusNOG] Google DNS Blocking/Unblocking
Damien Gardner Jnr
rendrag at rendrag.net
Tue Jan 20 13:41:18 EST 2015
Ahh right. I was more pointing out that the /sorry/ page works on IP
address, not on a cookie for a specific user.. When the IP gets blocked,
doing the captcha there unblocks *all* users behind that IP, not just the
one who entered the captcha.
*disclaimer* that was 14 months ago, may have changed since :)
On 20 January 2015 at 13:39, Damian Guppy <the.damo at gmail.com> wrote:
> IP != HTTP / DNS. You are talking about a different layer of the stack
> there Damien. What Damian is saying is that the /sorry/ page only helps if
> you are getting your HTTP requests blocked, DNS is different.
> Adding to the name confusion,
> On Tue, Jan 20, 2015 at 8:34 AM, Damien Gardner Jnr <rendrag at rendrag.net>
>> Just FYI, http://ip4.google.com/sorry/ definitely works on an IP address
>> level. At $job-1 we did a lot of in-house SEO/SEM work, and our marketing
>> guys were always getting our office IP's sent to this style of captcha
>> because of the amount of queries they were doing against google. Once
>> ANYONE had filled out the captcha, then everyone else coming out behind
>> that IP was able to use google again.
>> On 20 January 2015 at 11:18, Damian Menscher <damian at google.com> wrote:
>>> On 19 Jan 2015 17:25, Paul Julian <paul at oxygennetworks.com.au> wrote:
>>>> We have noticed recently that some customers are complaining about not
>>>> being able to resolve DNS via Google’s DNS servers, upon further
>>>> investigation we have found that we seem to be getting blocked by Google
>>>> from pinging or resolving DNS queries to their public servers, does anybody
>>>> know if there is some way we can check what the issue might be ?
>>> This smells like a network issue, not an abuse issue. Not enough
>>> information was provided on-list, but if you send a traceroute to
>>> noc at google.com they should be able to help you out.
>>> The comment about http://ipv4.google.com/sorry/ is false -- that page
>>> will give you a cookie if you prove you're not a bot, but HTTP cookies
>>> can't help with DNS. There's no need to memorize that URL... browsers will
>>> automatically 302 there if it will help.
>>> Author of http://ipv4.google.com/sorry/
>>> AusNOG mailing list
>>> AusNOG at lists.ausnog.net
>> Damien Gardner Jnr
>> VK2TDG. Dip EE. GradIEAust
>> rendrag at rendrag.net - http://www.rendrag.net/
>> We rode on the winds of the rising storm,
>> We ran to the sounds of thunder.
>> We danced among the lightning bolts,
>> and tore the world asunder
>> AusNOG mailing list
>> AusNOG at lists.ausnog.net
Damien Gardner Jnr
VK2TDG. Dip EE. GradIEAust
rendrag at rendrag.net - http://www.rendrag.net/
We rode on the winds of the rising storm,
We ran to the sounds of thunder.
We danced among the lightning bolts,
and tore the world asunder
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