<p>If you do not delegate the subdomains with NS records you are not fully delegating the subdomain. <br>
It will work fine in the short term, but are setting up a landmine for someone to step on later.<br>
If decide to move that subdomain to other dns servers later it will disappear without the NS records. </p>
<p>The best practice is to always put the NS records and not leave it to chance. </p>
<div class="gmail_quote">On Mar 13, 2012 9:43 AM, "hugo hugoo" <<a href="mailto:hugobxl@hotmail.com">hugobxl@hotmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div dir="ltr">
Thanks for the feedback.<br>
Is this a glue record? I do not have any IP defined in the NS record.<br>
<br>
What is the flow of a request to a subzone?<br>
Is the content of the zone checked before checking the subzone?<br>
<br> <br>
<div>
<div></div>> Date: Tue, 13 Mar 2012 08:26:02 -0500<br>> Subject: Re: <br>> From: <a href="mailto:dan.mcdonald@austinenergy.com" target="_blank">dan.mcdonald@austinenergy.com</a><br>> To: <a href="mailto:hugobxl@hotmail.com" target="_blank">hugobxl@hotmail.com</a>; <a href="mailto:bind-users@lists.isc.org" target="_blank">bind-users@lists.isc.org</a><br>
> <br>> <br>> <br>> <br>> On 3/13/12 8:20 AM, "hugo hugoo" <<a href="mailto:hugobxl@hotmail.com" target="_blank">hugobxl@hotmail.com</a>> wrote:<br>> <br>> > ==> do I have to create in zone "<a href="http://toto.be" target="_blank">toto.be</a>" the following NS record:<br>
> > <br>> > <a href="http://titi.toto.be" target="_blank">titi.toto.be</a>. TTL IN NS <a href="http://ns1.xxx.be" target="_blank">ns1.xxx.be</a><br>> > <br>> > <br>> > I have found cases where this situation is present and other when it is not<br>
> > present...and both cases seems to work.<br>> > What is the difference?<br>> <br>> The glue records aren't necessary when both the zone and subzone are on the<br>> same server, although it is good to have them for completeness. When the<br>
> zones are on different servers you need the glue records.<br>> <br>> <br>> <br>> -- <br>> Daniel J McDonald, CCIE # 2495, CISSP # 78281<br>> <br></div> </div></div>
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