continous DNS query to ROOT DNS server

[babu dheen]

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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