<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1494707865674_9848">Thank you Ben,</div><div id="yui_3_16_0_ym19_1_1494707865674_9847" dir="ltr">"With no forward {} the path for <a rel="nofollow" target="_blank" href="http://blah.bar.foo.com/" id="yui_3_16_0_ym19_1_1494707865674_10062">blah.bar.foo.com</a> directed at server A will be A > C > B"</div><div dir="ltr" id="yui_3_16_0_ym19_1_1494707865674_10063">Do you see any reason why I would use this non optimal path ?<br></div><div id="yiv1122415563"><div id="yui_3_16_0_ym19_1_1494707865674_8243"><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_ym19_1_1494707865674_8242"><div id="yiv1122415563yui_3_16_0_ym19_1_1494707865674_6604"><span></span></div> <div class="yiv1122415563qtdSeparateBR" id="yui_3_16_0_ym19_1_1494707865674_8241"><div id="yui_3_16_0_ym19_1_1494707865674_16929">In your example, how would C contact B, there would be a zone forward ?</div><div id="yui_3_16_0_ym19_1_1494707865674_16930">Regards<br></div><br clear="none"></div><div class="yiv1122415563yqt6845866022" id="yiv1122415563yqt57762"></div></div></div></div><div class=".yiv1122415563yahoo_quoted"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"><font size="2" face="Arial"> Le Vendredi 12 mai 2017 18h10, Ben Croswell <ben.croswell@gmail.com> a écrit :<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv1122415563y_msg_container"><div id="yiv1122415563"><div>If you load <a rel="nofollow" shape="rect" target="_blank" href="http://foo.com/">foo.com</a> on server A and delegate <a rel="nofollow" shape="rect" target="_blank" href="http://bar.foo.com/">bar.foo.com</a> to server B with a global forwarder of server C you resolution will vary depending on forward first vs forward only and forwarders {}.<div><br clear="none"></div><div>With no forward {} the path for <a rel="nofollow" shape="rect" target="_blank" href="http://blah.bar.foo.com/">blah.bar.foo.com</a> directed at server A will be A > C > B</div><div>With forward {} the global forward will be short circuited for <a rel="nofollow" shape="rect" target="_blank" href="http://foo.com/">foo.com</a> and below resulting in a path of A > B</div></div><div class="yiv1122415563gmail_extra"><br clear="none"><div class="yiv1122415563gmail_quote">On May 12, 2017 11:56 AM, "Mik J" <<a rel="nofollow" shape="rect" ymailto="mailto:mikydevel@yahoo.fr" target="_blank" href="mailto:mikydevel@yahoo.fr">mikydevel@yahoo.fr</a>> wrote:<br clear="none"><blockquote class="yiv1122415563quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_30970">Thank you Ben for your answer</div><div id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_30988"><br clear="none"></div><div id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_31021">My server uses a global forwarding</div><div id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_31070"><br clear="none"></div><div id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_34452">I don't understand what you wrote</div><div class="yiv1122415563quoted-text"><div id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_32694">"If it is master for a <a rel="nofollow" shape="rect" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_32656" target="_blank" href="http://foo.com/">foo.com</a> and also has global forwarding it will use the global forward for any delegated child domains under <a rel="nofollow" shape="rect" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_32657" target="_blank" href="http://foo.com/">foo.com</a> unless they are also loaded locally."</div><div id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_54644"><br clear="none"></div></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_54715">If my DNS is autoritative, why would I use a forwarding ?</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_56428"><br clear="none"></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_56434">For my sub domains I use delegations</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_56435"><a rel="nofollow" shape="rect" target="_blank" href="http://sub.mydomain.com/">sub.mydomain.com</a> NS <a rel="nofollow" shape="rect" target="_blank" href="http://ns.sub.mydomain.com/">ns.sub.mydomain.com</a></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_58106"><a rel="nofollow" shape="rect" target="_blank" href="http://ns.sub.mydomain.com/">ns.sub.mydomain.com</a> A 1.1.1.1</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_58147"><br clear="none"></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_58148">What's the difference between the global forward for delegated child domains and the delegation I do ?</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_59876"><br clear="none"></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_59877">Thank you<br clear="none"></div><div id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_30983"><br clear="none"></div><div id="yiv1122415563m_-8426657720653503732yui_3_16_0_ym19_1_1494594963766_30942"><span></span></div> <div class="yiv1122415563m_-8426657720653503732qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv1122415563m_-8426657720653503732yahoo_quoted" style="display:block;"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div class="yiv1122415563quoted-text"> <div dir="ltr"><font size="2" face="Arial"> Le Vendredi 12 mai 2017 15h34, Ben Croswell <<a rel="nofollow" shape="rect" ymailto="mailto:ben.croswell@gmail.com" target="_blank" href="mailto:ben.croswell@gmail.com">ben.croswell@gmail.com</a>> a écrit :<br clear="none"></font></div> <br clear="none"><br clear="none"> </div><div class="yiv1122415563m_-8426657720653503732y_msg_container"><div id="yiv1122415563m_-8426657720653503732yiv9791987386"><div><div class="yiv1122415563quoted-text"><div>This would only change behavior if the server has global forwarding. <div><br clear="none"></div><div>If it is master for a <a rel="nofollow" shape="rect" target="_blank" href="http://foo.com/">foo.com</a> and also has global forwarding it will use the global forward for any delegated child domains under <a rel="nofollow" shape="rect" target="_blank" href="http://foo.com/">foo.com</a> unless they are also loaded locally. The forward{} turns off global forwarding for that branch of the tree.</div></div></div><div class="yiv1122415563m_-8426657720653503732yiv9791987386gmail_extra"><br clear="none"><div class="yiv1122415563m_-8426657720653503732yiv9791987386gmail_quote"><div class="yiv1122415563quoted-text">On May 12, 2017 9:27 AM, "Mik J via bind-users" <<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>> wrote:<br clear="none"></div><blockquote class="yiv1122415563m_-8426657720653503732yiv9791987386gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="yiv1122415563quoted-text"><div class="yiv1122415563m_-8426657720653503732yiv9791987386yqt0118890978" id="yiv1122415563m_-8426657720653503732yiv9791987386yqt55729"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17382">Hello,</div><div><br clear="none"></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_20833">If my DNS is master/slave for a zone, why would I want it to use forwarders.</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_20834"><br clear="none"></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17409">In other terms why would I want</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17442">zone "<a rel="nofollow" shape="rect" target="_blank" href="http://mydomain.com/">mydomain.com</a>"<br id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17468" clear="none">{<br id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17469" clear="none"> type master;<br id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17470" clear="none"> file "zones/master/com/<a rel="nofollow" shape="rect" target="_blank" href="http://mydomain.com/">mydomain.com</a> ";<br id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17471" clear="none"> allow-update { acl; };<br id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17476" clear="none">};<br id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17477" clear="none"></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17478"><br clear="none"></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_22454">Instead of (forwarders {};)</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_19155">zone "<a rel="nofollow" shape="rect" target="_blank" href="http://mydomain.com/">mydomain.com</a>"<br id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_19161" clear="none">{<br id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_19162" clear="none"> type master;<br id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_19163" clear="none"> file "zones/master/com/<a rel="nofollow" shape="rect" target="_blank" href="http://mydomain.com/">mydomain.com</a> ";<br id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_19164" clear="none"> allow-update { acl; };</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_20796"> forwarders {};</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_22462">};</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_17873"><br clear="none"></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_22471">Why would I want to forward requests if I'm autoritative for the zone ?</div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_22470"><br clear="none"></div><div dir="ltr" id="yiv1122415563m_-8426657720653503732yiv9791987386m_-5032230757658920304yui_3_16_0_ym19_1_1494594963766_24105">Thank you for those who can hightligh this point.<br clear="none"></div></div></div></div><br clear="none">______________________________ _________________<br clear="none"></div>
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