On Fri, Aug 29, 2008 at 6:27 AM, Robert Spangler mlists@zoominternet.net wrote:
On Thursday 28 August 2008 05:50, Mark Quitoriano wrote:
hmmm... yeah i think is et everything to 300 which is not good. What is the recommended TTL settings? some sites recommend 4 days some 1 hour.
On Thu, Aug 28, 2008 at 3:17 PM, Michel van Deventer
michel@van.deventer.cx wrote:
Hi,
what is the TTL of your DNS records ? After TTL expires, the slaves don't respond to queries either, because the records aren't valid anymore. If your primary is down longer than the TTL of your DNS records you could reconfigure one of the slaves as a new primary or maybe consider making more than 1 primary.
On Thu, 2008-08-28 at 09:01 +0200, Romeo Ninov wrote:
Have you describe all the slave servers in you domain configuration (in registrant)?
Mark Quitoriano wrote / napísal(a):
Hi,
I have 4 bind9 dns installed on centos 4. My primary dns server went down and all of my domains doesn't resolve even if the 3 slave dns is up and running. Im not sure where to configure this is it in my domain registration or in bind?
It is not your TTL values that is the problem it is the EXPIRE value.
TTL is used for the caching of the information and tells the cache when to remove the information.
EXPIRE is the value that tell the slave how long the information it the zone file is good for when the master cannot be reached.
Leave your TTL at 300 (5 min) and change the EXPIRE value to something like a week or more.
Ok that clarifies everything :) thanks man!