<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yiv1099963221"><div id="yui_3_16_0_1_1434024906961_1879326"><div id="yui_3_16_0_1_1434024906961_1879325" style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"><div id="yiv1099963221yui_3_16_0_1_1434024906961_1817003">Put a dot at the end of the query hostname so that Windows doesn't add whatever the domain name suffix/es the Windows client may be configured with.</div><div id="yiv1099963221yui_3_16_0_1_1434024906961_1817187">That is, <br clear="none"></div><div id="yiv1099963221yui_3_16_0_1_1434024906961_1818130"> nslookup google.com.</div><div id="yiv1099963221yui_3_16_0_1_1434024906961_1817135"><br clear="none"><span id="yiv1099963221yui_3_16_0_1_1434024906961_1817088"></span></div><div dir="ltr" id="yiv1099963221yui_3_16_0_1_1434024906961_1817983"><span class="yiv1099963221" id="yiv1099963221yui_3_16_0_1_1434024906961_1817088" style="">It may be the case that the windows
client is adding whatever domain name suffix/es it has been configured with (e.g., google.com.vivacell.com) and perhaps
those queries are timing out until it finally tries google.com as the FQDN.</span><br clear="none"><span id="yiv1099963221yui_3_16_0_1_1434024906961_1817088"></span></div><div id="yiv1099963221yui_3_16_0_1_1434024906961_1817982"><span id="yiv1099963221yui_3_16_0_1_1434024906961_1817088"><br clear="none"></span></div><div id="yiv1099963221yui_3_16_0_1_1434024906961_1817134"><span id="yiv1099963221yui_3_16_0_1_1434024906961_1817088">If a mystery remains, one can turn on nslookup debugging via:<br clear="none"></span></div><div id="yiv1099963221yui_3_16_0_1_1434024906961_1817089"><span id="yiv1099963221yui_3_16_0_1_1434024906961_1817088"> set d2</span></div><div dir="ltr" id="yiv1099963221yui_3_16_0_1_1434024906961_1817933"><div id="yui_3_16_0_1_1434024906961_1879377"><span id="yiv1099963221yui_3_16_0_1_1434024906961_1817088">whose additional output may explain what is going on. That is, enter nslookup, then enter set d2, then enter a query such as google.com</span></div><div id="yui_3_16_0_1_1434024906961_1879399"><br><span id="yiv1099963221yui_3_16_0_1_1434024906961_1817088"></span></div><div dir="ltr" id="yui_3_16_0_1_1434024906961_1879530"><a id="yui_3_16_0_1_1434024906961_1879532" href="https://technet.microsoft.com/en-us/library/cc940085.aspx">Nslookup</a><br><span id="yiv1099963221yui_3_16_0_1_1434024906961_1817088"></span></div><div style="width:450px; font-family: 'Georgia', 'Times', 'Times New Roman', 'serif';margin-top:5px; margin-bottom: 5px; background-color: #ffffff;" id="enhancrCard_0" class="link-enhancr-attachment link-enhancr-element" contenteditable="false"><table id="yui_3_16_0_1_1434024906961_1879556" class="link-enhancr-element" style="width:450px; height:auto; position: relative; display: block;" border="0" cellpadding="0" cellspacing="0"><tbody id="yui_3_16_0_1_1434024906961_1879555"><tr class="link-enhancr-element"><td class="link-enhancr-element" colspan="7" style="height: 1px; background-color: #e5e5e5; font-size: 1px; border-collapse: collapse;"><div class="link-enhancr-element" style="height: 1px; background-color: #e5e5e5; font-size: 1px; line-height:0px;"> </div></td></tr><tr class="link-enhancr-element"><td rowspan="5" class="link-enhancr-element" style="width: 1px; background-color: #e5e5e5; font-size: 1pt; border-collapse: collapse;"><div class="link-enhancr-element" style="width: 1px; background-color: #e5e5e5; font-size: 1pt;"> </div></td><td rowspan="5" class="link-enhancr-element" style="width: 14px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="width: 14px; background-color: #ffffff; font-size: 14pt;"> </div></td><td colspan="2" class="link-enhancr-element" style="height: 6px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="height: 6px; background-color: #ffffff; font-size: 6pt;"> </div></td><td rowspan="5" class="link-enhancr-element" style="width: 20px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div class="link-enhancr-element" style="width: 20px; background-color: #ffffff; font-size: 20pt;"> </div></td><td class="link-enhancr-element" rowspan="5" style="width: 1px; background-color: #e5e5e5; font-size: 1pt; border-collapse: collapse;" width="1"><div class="link-enhancr-element" style="width: 1px; background-color: #e5e5e5; font-size: 1pt;"> </div></td></tr><tr id="yui_3_16_0_1_1434024906961_1879554"><td id="yui_3_16_0_1_1434024906961_1879553" class="link-enhancr-element" colspan="2" style="width: 100%; vertical-align: middle; font-family: 'Georgia', 'Times', 'Times New Roman', 'serif';"><div id="yui_3_16_0_1_1434024906961_1879552" class="link-enhancr-text-part link-enhancr-element" style="line-height:16.5px; background-color: #ffffff; width: 414px;"><div id="yui_3_16_0_1_1434024906961_1879551" class="link-enhancr-element" style="word-wrap: break-word; word-break: break-all;"><span class="link-enhancr-element icon icon-shrink link-enhancr-toggle"></span><span class="link-enhancr-element icon icon-close link-enhancr-delete"></span><a id="yui_3_16_0_1_1434024906961_1879550" href="https://technet.microsoft.com/en-us/library/cc940085.aspx" class="link-enhancr-card-urlWrapper link-enhancr-element" style="text-decoration: none !important; color: #000000 !important; line-height: 100%; font-size: 18px; display: block;"><span class="link-enhancr-element link-enhancr-card-title" style="margin: 0; font-weight: normal;margin-bottom: 3px; font-size: 18px; line-height: 21px; max-height: 43px; color: #000000; overflow: hidden !important; display: inline-block;">Nslookup</span></a><div id="yui_3_16_0_1_1434024906961_1879558" style="font-size: 13px; line-height: 20px; color: #999999; max-height: 81px; font-family: 'Georgia', 'Times', 'Times New Roman', 'serif';overflow: hidden;" class="link-enhancr-card-description link-enhancr-element">Nslookup is a useful tool for troubleshooting DNS problems, such as host name resolution. </div></div></div></td></tr><tr id="yui_3_16_0_1_1434024906961_1879561"><td id="yui_3_16_0_1_1434024906961_1879560" colspan="2" class="link-enhancr-element" style="height: 6px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div id="yui_3_16_0_1_1434024906961_1879559" class="link-enhancr-element" style="height: 6px; background-color: #ffffff; font-size: 6pt;"></div></td></tr><tr id="yui_3_16_0_1_1434024906961_1879566"><td id="yui_3_16_0_1_1434024906961_1879565" class="link-enhancr-element" style="vertical-align: middle; font-family: 'Arial', 'Helvetica Neue', 'Helvetica', 'sans-serif';"><div id="yui_3_16_0_1_1434024906961_1879564" class="link-enhancr-element" style="font-size: 0pt;"><a id="yui_3_16_0_1_1434024906961_1879563" href="https://technet.microsoft.com/en-us/library/cc940085.aspx" class="link-enhancr-card-url link-enhancr-element" style="color: black; text-decoration: none !important;cursor:pointer !important;" target="_blank"><span id="yui_3_16_0_1_1434024906961_1879547" class="link-enhancr-element link-enhancr-view-on" style="display: inline-block; line-height: 11px; max-width: 314px; min-width: 254px; overflow: hidden; max-height: 13px; word-break: break-all;"><span class="link-enhancr-element link-enhancr-mobile-no-resize" style="vertical-align:middle; font-size: 9px; line-height: 11px; color: #999999; -moz-text-size-adjust: none; -ms-text-size-adjust: none; -webkit-text-size-adjust:none; text-size-adjust:none;">View on <span style="font-weight: bold" class="link-enhancr-view-on-domain">technet.microsoft.com</span></span></span></a></div></td><td class="link-enhancr-element" style="vertical-align: middle; width: 100px; font-family: 'Arial', 'Helvetica Neue', 'Helvetica', 'sans-serif';"><div class="link-enhancr-element link-enhancr-preview-wrapper" style="max-width: 100px; min-width: 80px; overflow: hidden; text-align: right; line-height: 11px; max-height: 13px; font-size: 0pt;"><span class="link-enhancr-element link-enhancr-preview-by link-enhancr-mobile-no-resize" style="vertical-align:middle; font-size: 9px; line-height: 11px; color: #999999; -moz-text-size-adjust: none; -ms-text-size-adjust: none; -webkit-text-size-adjust:none; text-size-adjust:none;">Preview by Yahoo</span></div></td></tr><tr id="yui_3_16_0_1_1434024906961_1879569"><td id="yui_3_16_0_1_1434024906961_1879568" colspan="2" class="link-enhancr-element" style="height: 9px; background-color: #ffffff; font-size: 0pt; border-collapse: collapse;"><div id="yui_3_16_0_1_1434024906961_1879567" class="link-enhancr-element" style="height: 9px; background-color: #ffffff; font-size: 9pt;"></div></td></tr><tr id="yui_3_16_0_1_1434024906961_1879573" class="link-enhancr-element"><td id="yui_3_16_0_1_1434024906961_1879572" class="link-enhancr-element" colspan="7" style="height: 1px; background-color: #e5e5e5; font-size: 1px; border-collapse: collapse;"><div id="yui_3_16_0_1_1434024906961_1879571" class="link-enhancr-element" style="height: 1px; background-color: #e5e5e5; font-size: 1px; line-height:0px"> </div></td></tr></tbody></table></div><div id="yui_3_16_0_1_1434024906961_1879575"><span id="yiv1099963221yui_3_16_0_1_1434024906961_1817088"><br clear="none"></span></div></div><div dir="ltr" id="yiv1099963221yui_3_16_0_1_1434024906961_1817852"><span id="yiv1099963221yui_3_16_0_1_1434024906961_1817088"></span></div> I hope this helps.<br clear="none"><div class="yiv1099963221qtdSeparateBR" id="yiv1099963221yui_3_16_0_1_1434024906961_1817304"><br clear="none"><br clear="none"></div><div class="yiv1099963221yqt6849939125" id="yiv1099963221yqt18557"></div></div></div></div><div class=".yiv1099963221yahoo_quoted"> <div id="yiv1099963221yui_3_16_0_1_1434024906961_1819312" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"> <div id="yiv1099963221yui_3_16_0_1_1434024906961_1819311" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr" id="yiv1099963221yui_3_16_0_1_1434024906961_1819552"> <font face="Arial" size="2"> On Monday, June 22, 2015 7:36 AM, Niall O'Reilly <niall.oreilly@ucd.ie> wrote:<br clear="none"> </font> </div> <br clear="none"><br clear="none"> <div class="yiv1099963221y_msg_container" id="yiv1099963221yui_3_16_0_1_1434024906961_1819310">On Mon, 22 Jun 2015 12:07:31 +0100,<br clear="none">Zelalem Fanta Woldesemayat wrote:<br clear="none">> <br clear="none">> Dear all,<br clear="none">> <br clear="none">> I’ve configured BIND 9.9.4. as a cache only server on our DMZ so that<br clear="none">> it can serve as a DNS server for the internal network. Inside the DMZ<br clear="none">> zone the request time out is very fast and the DNS service resolves<br clear="none">> very quickly. But the problem is from the inside network. When I tried<br clear="none">> nslookup it gives the following message. Would you please help me to<br clear="none">> resolve this issue.<br clear="none"><br clear="none"> Perhaps you need to configure named to allow access from the client<br clear="none"> network. The ISC Knowledge Base has an article which may be useful:<br clear="none"> <a rel="nofollow" shape="rect" target="_blank" href="https://kb.isc.org/article/AA-00269/0/What-has-changed-in-the-behavior-of-allow-recursion-and-allow-query-cache.html">https://kb.isc.org/article/AA-00269/0/What-has-changed-in-the-behavior-of-allow-recursion-and-allow-query-cache.html</a><br clear="none"><br clear="none"> Best regards,<br clear="none"> Niall O'Reilly<div class="yiv1099963221yqt0416960752" id="yiv1099963221yqtfd39238"><br clear="none"> <br clear="none">_______________________________________________<br clear="none">Please visit <a rel="nofollow" shape="rect" id="yiv1099963221yui_3_16_0_1_1434024906961_1819559" target="_blank" href="https://lists.isc.org/mailman/listinfo/bind-users">https://lists.isc.org/mailman/listinfo/bind-users </a>to unsubscribe from this list<br clear="none"><br clear="none">bind-users mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:bind-users@lists.isc.org" target="_blank" href="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="https://lists.isc.org/mailman/listinfo/bind-users">https://lists.isc.org/mailman/listinfo/bind-users</a></div><br clear="none"><br clear="none"></div> </div> </div> </div></div></body></html>