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<DIV id=SkyDrivePlaceholder>Good morning.</DIV>
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<DIV>We sent the following email to the dns managers at thehartford.com this morning:</DIV>
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<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p><FONT size=3 face=Calibri>--------------------------------------------------------------------------------- </FONT></o:p></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><FONT face=Calibri><FONT size=3> Hi. We’re experiencing some issues with address record lookups for eftc.thehartford.com. We’ve got a couple questions about how this address record is set up. <o:p></o:p></FONT></FONT></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><o:p><FONT size=3 face=Calibri> </FONT></o:p></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><FONT face=Calibri><FONT size=3>Question : why does eftc as an address record in the thehartford.com zone file have a 30 second TTL? Seems … very … short. I think most nameservers won’t do less than a minute for an address record. Right?<o:p></o:p></FONT></FONT></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><o:p><FONT size=3 face=Calibri> </FONT></o:p></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><FONT size=3 face=Calibri>Question : our check of whois indicates that ns1.thehartford.com and ns2.thehartford.com are the authoritative nameservers for thehartford.com. A dig with a +trace for eftc.thehartford.com seems to indicate that they are indeed the auth nameservers. It’s interesting, though, that an </FONT><A href="http://www.kloth.net/services/nslookup.php%20lookup%20for%20thehartford.com"><FONT color=#0000ff size=3 face=Calibri>http://www.kloth.net/services/nslookup.php lookup for thehartford.com</FONT></A><FONT face=Calibri><FONT size=3> query for NS records shows a non-authoritative answer of hfdns3.thehartford.com, hfdns4.thehartford.com, simns3.thehartford.com, simns3.thehartford.com and simns4.thehartford.com. We’re unsure what’s going on with that.<o:p></o:p></FONT></FONT></P>
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<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><FONT size=3><FONT face=Calibri> So we have a Microsoft set of DNS servers that seem to get confused </FONT><SPAN style="FONT-FAMILY: Wingdings">J</SPAN><FONT face=Calibri> by this somehow. Not really clear to us what’s going on with it … but it’s sort of like there’s some negative caching going on for hfdns3, hfdns4, simns3 and simns4 … at some point … where these Microsoft DNS servers think those 4 servers are the authorities for the thehartford.com domain … and those auth nameserver names … can’t be found … resolved. Then for a period … until the Microsoft DNS servers have their cache cleared … they say … NOPE … no such servers out there. Can’t get to hfdns4, hfdns3, simns3 or simns4 at all … so we can’t resolve eftc.thehartford.com. <o:p></o:p></FONT></FONT></P>
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<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><FONT size=3><FONT face=Calibri> Can you help us understand what’s going on?<o:p></o:p></FONT></FONT></P>
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<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><FONT size=3><FONT face=Calibri>Thanks!<o:p></o:p></FONT></FONT></P><FONT size=3><FONT face=Calibri>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><o:p><FONT size=3 face=Calibri>--------------------------------------------------------------------------------- </FONT></o:p></P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><o:p></o:p> </P>
<P style="MARGIN: 0in 0in 0pt" class=MsoNormal><o:p>So now ... just in case we don't hear back from the dns folks at thehartford.com ... I'm wondering if any of the experts on this mailing list can help us understand this?</o:p></P>
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