Master/slave configuration

[michoski]

On 3/7/12 9:15 AM, "Barry Margolin" <barmar at alum.mit.edu> wrote:
> In article <mailman.166.1331112226.63724.bind-users at lists.isc.org>,
>  romgo at free.fr wrote:
>> I use bind on my network as DNS Server. Running bind
>> 1:9.6.ESV.R4+dfsg-0+lenny4
>> on Debian Lenny.
>> 
>> The setup is quite usual : one master server with one slave server.
>> 
>> The slave sync the zone from the master.
>> 
>> I discover that when the master is down I have some trouble to access to
>> internet and to local domain which are managed by the master server.
>> 
>> Symptoms are : slow browsing and some website can't be reached, seems to be a
>> timeout issue. (the server didn't answer in time).
> 
> Is your /etc/resolv.conf pointing to both servers?
> 
> Things will be slow, since the resolver has to wait for a timeout before
> failing over to the backup server.

Yes, this is a common failure mode.  Beside making sure you list multiple
servers, you might want to try adjusting options in resolv.conf(5).

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