<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Roberto,<br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""></div></div></div></div></div><div><blockquote type="cite" class=""><div class="">On 17 May 2018, at 16:06, Roberto Carna <<a href="mailto:robertocarna36@gmail.com" class="">robertocarna36@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hi people, I've implemented two BIND9 servers for my company, one as<br class="">primary public DNS server and the other as secondary public DNS<br class="">server.<br class=""><br class="">I always believed that all the client queries coming from Internet go<br class="">to the DNS primary server, and if it is down, just in this case go to<br class="">the DNS secondary server.<br class=""><br class="">But it seems it is different than I believed....when I see the query<br class="">log file in primary and secondary DNS servers, I can see queries<br class="">coming from Internet in both servers....in other words, the two DNS<br class="">servers are being contacted all the time.<br class=""><br class="">Is there any way to make DNS clients from Internet always contact my<br class="">primary DNS server and just if it is down the clients must contact the<br class="">secondary DNS server ???<br class=""></div></div></blockquote></div><br class=""><div class=""><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">are those servers Authoritative, or Recursive?</div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">It’s not quite clear in your above explanation.</div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""></div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Cheers, <br class=""><br class="">-- <br class="">Nico</div><div class=""><br class=""></div></div></div></div></div></div></body></html>