Problem is, most of client resolvers (not resolving nameservers, but resolvers on workstations etc) query first specified nameserver first, then after timeout start with the others. You should create a HA IP for such uses.<div>
<br></div><div>b.</div><div><br><br><div class="gmail_quote">On 7 March 2012 10:23, <span dir="ltr"><<a href="mailto:romgo@free.fr">romgo@free.fr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear community,<br>
<br>
I use bind on my network as DNS Server. Running bind 1:9.6.ESV.R4+dfsg-0+lenny4<br>
on Debian Lenny.<br>
<br>
The setup is quite usual : one master server with one slave server.<br>
<br>
The slave sync the zone from the master.<br>
<br>
I discover that when the master is down I have some trouble to access to<br>
internet and to local domain which are managed by the master server.<br>
<br>
Symptoms are : slow browsing and some website can't be reached, seems to be a<br>
timeout issue. (the server didn't answer in time).<br>
<br>
I saw that for unreachable website, the issue was DNS as my tcpdump didn't get<br>
any http request.<br>
<br>
How can I troubleshoot this issue ?<br>
<br>
Regards,<br>
<br>
<br>
<br>
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</blockquote></div><br></div>