continous DNS query to ROOT DNS server

[babu dheen]

Dear Chris,
 
Actually this query is being sent by my DHCP server running in windows operating system. 
 
I have configured forwarders in DHCP towards my gateway DNS servers(running in Redhat BIND).
 


--- On Tue, 26/4/11, Chris Buxton <chris.p.buxton at gmail.com> wrote:


From: Chris Buxton <chris.p.buxton at gmail.com>
Subject: Re: continous DNS query to ROOT DNS server
To: "babu dheen" <babudheen at yahoo.co.in>, bind-users at lists.isc.org
Date: Tuesday, 26 April, 2011, 9:17 PM


Create RFC 1918 reverse zones for whatever parts of this address space
you're using.

Newer versions of BIND will do this automatically for you -- the zones
are created without content. What version of BIND are you using?

Chris Buxton
BlueCat Networks


On 4/26/11, babu dheen <babudheen at yahoo.co.in> wrote:
> Dear Chris,
>
> Thanks for your quick response. But my concern is; why this query is
> actually started going to AS112 servers.
>
> Is it because my DHCP servers do not maintain PTR record zone for all
> internal IP address?
>
> I need to have a solution to stop this query at host level instead of adding
> entry in DNS server
>
>
> Regards
> papdheen M
>
> --- On Tue, 26/4/11, Chris Buxton <chris.p.buxton at gmail.com> wrote:
>
>
> From: Chris Buxton <chris.p.buxton at gmail.com>
> Subject: Re: continous DNS query to ROOT DNS server
> To: "babu dheen" <babudheen at yahoo.co.in>, bind-users at lists.isc.org, "Kevin
> Darcy" <kcd at chrysler.com>
> Date: Tuesday, 26 April, 2011, 5:52 PM
>
>
> They're not root servers.
>
> Add this to your named.conf, alongside your 'forwarders' statement:
>
> forward only;
>
> Chris Buxton
> BlueCat Networks
>
>
> On 4/26/11, babu dheen <babudheen at yahoo.co.in> wrote:
>> Hi,
>>
>> I understand that my system contacts AS112 server but not sure why my
>> system
>> is contacting AS112 ROOT servers
>>
>> Can you tell me what i need to do at server level to stop this. I read the
>> RFC but no where it clearly mentioned why this is happening.
>>
>> I have already configured forwarders in my system to send query to my
>> gateway DNS server(running in BIND). then why my system is not using
>> gateway
>> DNS either for reverse DNS query mapping?
>>
>> Regards
>> babu
>>
>> --- On Tue, 26/4/11, Kevin Darcy <kcd at chrysler.com> wrote:
>>
>>
>> From: Kevin Darcy <kcd at chrysler.com>
>> Subject: Re: continous DNS query to ROOT DNS server
>> To: bind-users at lists.isc.org
>> Date: Tuesday, 26 April, 2011, 12:32 AM
>>
>>
>> On 4/25/2011 2:33 PM, babu dheen wrote:
>>
>>
>>
>>
>>
>> Dears,
>>
>>  I have DHCP server running in Windows Operating System(Windows 2003), i
>> have configured forwarder towards gateway DNS server(running in redhat).
>>
>>  When i check the firewall hits for DHCP server i can see, my DHCP server
>> is
>> sending too many DNS query towards ROOT DNS servers(192.175.48.1,
>> 192.175.48.6, 192.175.48.42 and etc)
>>
>>  Please guide us to stop this query at server level.
>>
>> Regards
>> BabuThis is not a DHCP list.
>>
>> This is not a Microsoft list.
>>
>> Those aren't root nameserver addresses, they are AS112 addresses, see
>> http://public.as112.net/node/8
>>
>> Apparently you didn't define your own RFC 1918 zones.
>>
>>
>>
>>                                         - Kevin
>>
>>
>> -----Inline Attachment Follows-----
>>
>>
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>
> --
> Sent from my mobile device
>

-- 
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