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I’ve been trying to perform some zone record cleanup after it’s deletion and ran into two interesting issues.</div>
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(Using BIND9 for DNS)</div>
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One:</div>
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Though not queryable, a parent zone still contain NS records for a child zone even after the removal of the zone… which is seemingly not able to be queried. </div>
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$name = “child.zone”;</div>
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$type = “NS”;</div>
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<div><font face="Calibri,sans-serif"> my $res = Net::DNS::Resolver->new;</font></div>
<div><font face="Calibri,sans-serif"> $res->nameservers($server);</font></div>
<div><font face="Calibri,sans-serif"> $res->port($port);</font></div>
<div><font face="Calibri,sans-serif"> $res->recurse(1);</font></div>
<div><font face="Calibri,sans-serif"> $res->debug(1);</font></div>
<div><font face="Calibri,sans-serif"> my $packet = $res->send($name, $type);</font></div>
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<div><font face="Calibri,sans-serif">Is there a method to retrieve this record information? Also, how to delete these?</font></div>
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<div><span style="font-family: Calibri, sans-serif; font-size: 14px;">One:</span></div>
<div><font face="Calibri,sans-serif">For removal of DS records, I receive a FORMERR for this type of resource record delete:</font></div>
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<div><font face="Calibri,sans-serif">$update->push("update", rr_del("</font><font face="Calibri,sans-serif">child.zone DS 56419 5 2 d36a214f569acb874fe5911f91ed82a90c59c056c2c62e356d621bd064c3a8ad”);</font></div>
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<div>I can delete all DS records by omitting the record data just fine, but what it the appropriate method to delete a particular DS record?</div>
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<div>—</div>
<div>Raymond Walker</div>
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<div>Software Systems Engineer StSp.</div>
<div>ITS - Northern Arizona University</div>
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