I'm confused as to why it would block the Google DNS servers (which I
believe are 8.8.8.8 and 8.8.4.4 unless they have more? resolve to):

8.8.8.8.in-addr.arpa.   43194   IN      PTR
google-public-dns-a.google.com.

My results to both of our suggestions seem to be identical. Very
interesting that we get completely different results though. :-)

[mianosm@dev ~]$ host youtube.com | awk '/has address/ {print $NF}'
173.194.37.100
173.194.37.105
173.194.37.96
173.194.37.104
173.194.37.102
173.194.37.101
173.194.37.99
173.194.37.110
173.194.37.98
173.194.37.103
173.194.37.97
[mianosm@dev ~]$ dig youtube.com | egrep youtube.com | awk '{ print $5 }' |
grep -v '<<' | grep .
173.194.37.100
173.194.37.105
173.194.37.96
173.194.37.104
173.194.37.102
173.194.37.101
173.194.37.99
173.194.37.110
173.194.37.98
173.194.37.103
173.194.37.97


On Thu, Oct 4, 2012 at 11:27 AM, Chris Schanzle <schan...@nist.gov> wrote:

> On 10/04/2012 09:58 AM, Steven Miano wrote:
>
>>   dig youtube.com <http://youtube.com> | egrep youtube.com <
>> http://youtube.com> | awk '{ print $5 }' | grep . | grep -v '<<' > yt.dig
>>
>
> You'd block google's DNS servers with that, which might not be a problem
> on the client, but may I suggest a "new and improved" method:
>
> host youtube.com | awk '/has address/ {print $NF}'
> 74.125.228.5
> 74.125.228.3
> 74.125.228.1
> 74.125.228.14
> 74.125.228.0
> 74.125.228.8
> 74.125.228.2
> 74.125.228.6
> 74.125.228.4
> 74.125.228.9
> 74.125.228.7
>
>
> Remove the awk filter and you'll also see the IPv6:
>
> youtube.com has IPv6 address 2607:f8b0:400d:c00::5d
>



-- 
<http://stevenmiano.com/> Miano, Steven M.
http://stevenmiano.com

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