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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Greetings all,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We have a number of BIND 9.3.4 servers that are managed by
ProBIND. We would like to be able to use nsupdate to generate dynamic DNS
updates, but, of course, any DDNS updates would be lost the next time the zone
was “pushed” since they aren’t reflected in ProBIND’s
MySQL database.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Is there any standard way to have BIND notify an external
function or program that an update has occurred? </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>For example, registering a callback function that would then
make the appropriate update to the ProBIND database? That’s not a
perfect solution, since there’s still a chance for the zone and the
external database to be out of sync if the external database update doesn’t
exactly match the DNS update, or if the serial numbers are mishandled.
But it seems like that would be a better solution than trying to monitor
zone/journal files for changes, or parsing log files.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’ve looked at SDB, which would be attractive if
ProBIND or an alternative management system used SDB instead of their own
schema, and I’m investigating bind-dlz and NetReg.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Is there a preferred way to handle this?</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thank you for your time,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>John</span></font></p>
<p><font size=2 color="#002878" face="Arial Black"><span style='font-size:10.0pt;
font-family:"Arial Black";color:#002878;letter-spacing:1.0pt'>John Simpson </span></font><br>
<font size=2 color="#5f5f5f" face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:#5F5F5F;letter-spacing:1.0pt'>Senior Software Engineer,
I. T. Engineering and Operations</span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
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