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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Calibri",sans-serif">Hi guys<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Calibri",sans-serif">Anyone from aapt desk online?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Calibri",sans-serif">The usual channels are getting us no where
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Calibri",sans-serif">Details below
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><i>Commencing early morning last Friday Sep 20, most of our nbn IPs are experiencing delays connecting to services which use IP Reverse Name Lookup.<o:p></o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoPlainText"><i>ie ssh has a 15 second delay, mail/smtp has a 35 second delay.<o:p></o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoPlainText"><i>If we disable Reverse Name Lookup in ssh, the delay dissappears.<o:p></o:p></i></p>
<p class="MsoPlainText"><i>Not possible to disable Reverse Name Lookup in sendmail.<o:p></o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoPlainText"><i>For the good IPs, host or dig the IP returns a hostname, and host or dig or nslookup the hostname returns the IP.<o:p></o:p></i></p>
<p class="MsoPlainText"><i>For the bad IPs, host or dig the IP returns a hostname, and host or dig or nslookup the hostname fails.<o:p></o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoPlainText"><i>27.32.181.22 is OK.<o:p></o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoPlainText"><i>rain:~# host 27.32.181.22<o:p></o:p></i></p>
<p class="MsoPlainText"><i>22.181.32.27.in-addr.arpa domain name pointer 27-32-181-22.tpgi.com.au.<o:p></o:p></i></p>
<p class="MsoPlainText"><i>rain:~# host 27-32-181-22.tpgi.com.au<o:p></o:p></i></p>
<p class="MsoPlainText"><i>27-32-181-22.tpgi.com.au has address 27.32.181.22 rain:~#<o:p></o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoPlainText"><i>59.100.247.50, 210.10.223.90, 59.100.243.186, 203.174.142.86,<o:p></o:p></i></p>
<p class="MsoPlainText"><i>203.174.178.46 are not OK.<o:p></o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoPlainText"><i>rain:~# host 59.100.247.50<o:p></o:p></i></p>
<p class="MsoPlainText"><i>50.247.100.59.in-addr.arpa domain name pointer 59-100-247-50.mel.static-ipl.aapt.com.au.<o:p></o:p></i></p>
<p class="MsoPlainText"><i>rain:~# host 59-100-247-50.mel.static-ipl.aapt.com.au<o:p></o:p></i></p>
<p class="MsoPlainText"><i>;; connection timed out; no servers could be reached rain:~#<o:p></o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoPlainText"><i>Similar results with nslookup or dig.<o:p></o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoPlainText"><i>Can you please investigate and restore the hostname lookups.<o:p></o:p></i></p>
<p class="MsoPlainText"><i><o:p> </o:p></i></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-AU">Steve Dimitrio<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-AU">Netcore PTY LTD
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-AU">Office: 03 9725 1469<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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