<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>Dear Chris,</DIV>
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<DIV>Thanks for your quick response. But my concern is; why this query is actually started going to AS112 servers.</DIV>
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<DIV>Is it because my DHCP servers do not maintain PTR record zone for all internal IP address?</DIV>
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<DIV>I need to have a solution to stop this query at host level instead of adding entry in DNS server</DIV>
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<DIV>Regards</DIV>
<DIV>papdheen M<BR><BR>--- On <B>Tue, 26/4/11, Chris Buxton <I><chris.p.buxton@gmail.com></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style="BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><BR>From: Chris Buxton <chris.p.buxton@gmail.com><BR>Subject: Re: continous DNS query to ROOT DNS server<BR>To: "babu dheen" <babudheen@yahoo.co.in>, bind-users@lists.isc.org, "Kevin Darcy" <kcd@chrysler.com><BR>Date: Tuesday, 26 April, 2011, 5:52 PM<BR><BR>
<DIV class=plainMail>They're not root servers.<BR><BR>Add this to your named.conf, alongside your 'forwarders' statement:<BR><BR>forward only;<BR><BR>Chris Buxton<BR>BlueCat Networks<BR><BR><BR>On 4/26/11, babu dheen <<A href="http://in.mc1373.mail.yahoo.com/mc/compose?to=babudheen@yahoo.co.in" ymailto="mailto:babudheen@yahoo.co.in">babudheen@yahoo.co.in</A>> wrote:<BR>> Hi,<BR>><BR>> I understand that my system contacts AS112 server but not sure why my system<BR>> is contacting AS112 ROOT servers<BR>><BR>> Can you tell me what i need to do at server level to stop this. I read the<BR>> RFC but no where it clearly mentioned why this is happening.<BR>><BR>> I have already configured forwarders in my system to send query to my<BR>> gateway DNS server(running in BIND). then why my system is not using gateway<BR>> DNS either for reverse DNS query mapping?<BR>><BR>> Regards<BR>> babu<BR>><BR>> --- On Tue,
26/4/11, Kevin Darcy <<A href="http://in.mc1373.mail.yahoo.com/mc/compose?to=kcd@chrysler.com" ymailto="mailto:kcd@chrysler.com">kcd@chrysler.com</A>> wrote:<BR>><BR>><BR>> From: Kevin Darcy <<A href="http://in.mc1373.mail.yahoo.com/mc/compose?to=kcd@chrysler.com" ymailto="mailto:kcd@chrysler.com">kcd@chrysler.com</A>><BR>> Subject: Re: continous DNS query to ROOT DNS server<BR>> To: <A href="http://in.mc1373.mail.yahoo.com/mc/compose?to=bind-users@lists.isc.org" ymailto="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</A><BR>> Date: Tuesday, 26 April, 2011, 12:32 AM<BR>><BR>><BR>> On 4/25/2011 2:33 PM, babu dheen wrote:<BR>><BR>><BR>><BR>><BR>><BR>> Dears,<BR>><BR>> I have DHCP server running in Windows Operating System(Windows 2003), i<BR>> have configured forwarder towards gateway DNS server(running in redhat).<BR>><BR>> When i check the firewall hits for
DHCP server i can see, my DHCP server is<BR>> sending too many DNS query towards ROOT DNS servers(192.175.48.1,<BR>> 192.175.48.6, 192.175.48.42 and etc)<BR>><BR>> Please guide us to stop this query at server level.<BR>><BR>> Regards<BR>> BabuThis is not a DHCP list.<BR>><BR>> This is not a Microsoft list.<BR>><BR>> Those aren't root nameserver addresses, they are AS112 addresses, see<BR>> <A href="http://public.as112.net/node/8" target=_blank>http://public.as112.net/node/8</A><BR>><BR>> Apparently you didn't define your own RFC 1918 zones.<BR>><BR>><BR>><BR>> - Kevin<BR>><BR>><BR>> -----Inline Attachment Follows-----<BR>><BR>><BR>> _______________________________________________<BR>>
bind-users mailing list<BR>> <A href="http://in.mc1373.mail.yahoo.com/mc/compose?to=bind-users@lists.isc.org" ymailto="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</A><BR>> <A href="https://lists.isc.org/mailman/listinfo/bind-users" target=_blank>https://lists.isc.org/mailman/listinfo/bind-users</A><BR><BR>-- <BR>Sent from my mobile device<BR></DIV></BLOCKQUOTE></td></tr></table>