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<p class="MsoNormal"><span style="color:#1F497D">> This is a common point of confusion. DNS does not transfer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> zoneFILES. Zone files are read and converted into the<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> in-memory tree structure. Zones are sent in wire format<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> from the in-memory tree. The receiving end populates its<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> in-memory tree. It can then convert the information to<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> zone file format, and write it out, but do not expect it<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> to look anything like the original zone file. It has no<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> idea what the original file looked like, or what order the<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> records were in.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> $ORIGIN and $TTL only apply to the zone they are in, so no<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> need to reset them at the end of the file since they cease<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> to exist at that point. They apply "from this line down<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> until changed" and are merely a convenience to shorten<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> the size of the file.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> -- <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> Bob Harold<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Bob,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks for your response. Although I was aware the zone data<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">is transferred in wire-format between nameservers I was<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">more concerned with the processing of the file when it is<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">read (i.e. on startup, reconfig, etc.)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">We are "lucky" enough to be importing more zones into a DB<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">backed provisioning system and as bind is getting more and<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">more strict with each release regarding transfers we have<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">scrapped our older scrubbing logic and started using bind<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">to provide this service and couldn't be happier. Just<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">wanted to confirm this $TTL logic was exactly as I suspected<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">before requiring code changes (non-bind).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks again,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">John</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Courier New";color:black">-- THESE ARE THE DROIDS TO WHOM I REFER:<o:p></o:p></span></p>
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