DNS Zone Tranfer

Posted on 2009-03-31
Last Modified: 2012-05-06
Hi Experts

My Event Viewer / DNS Server Log keeps saying :
Source:  DNS
Event ID: 6527
Zone has expired before it could obtain a successful zone transfer or update from a master server acting as its source for the zone. The zone has been shut down.

But zone transfers from Primary to Secondary are happening fine.
Then why do i get the above error message???.   :-(
Pls help.

Thanks & Regards
Question by:aliomarb
  • 3
  • 3
LVL 70

Expert Comment

by:Chris Dent
ID: 24030525

Has it actually Expired? What is the Expiry set to?


Author Comment

ID: 24030633
Hi Chris

I was just googling on the net.
In the SOA Tab, the Expiry was set to 1 minute.
I just changed that to 1 hour. (I think this is recommended)  right !!???
Please advise...

LVL 70

Expert Comment

by:Chris Dent
ID: 24030718

Depends on how you're using it. I'll happily use anything from 1 hour to a month. If it's more important to maintain access to the zone I'd set the value to least 8 hours.

How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails


Author Comment

ID: 24030739
But what does this setting actually mean or do ??
LVL 70

Accepted Solution

Chris Dent earned 500 total points
ID: 24030811

It says how long the Secondary server should hold onto the zone before it's considered invalid and has to be discarded. Normally that only applies when zone transfer requests fail continually (because normally the Expiry is quite long).

However, with it set to 1 minute the Secondary server would have been discarding the zone if it didn't successfully Transfer from the Primary during within a minute of the last transfer.

Expiry works with the Refresh interval in the SOA which states how often the Secondary should check in with the Primary for an update. If the Refresh is greater than the Expiry the zone will be discarded as invalid long before it has a chance to attempt to transfer again.


Author Closing Comment

ID: 31564890

Featured Post

What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

Join & Write a Comment

This article is intended as an extension of a blog on Aging and Scavenging by the MS Enterprise Networking Team. In brief, Scavenging is used as follows: Each record in a zone which has been dynamically registered with an MS DNS Server will have…
I will assume you are running a non-server version of some sort of Windows throughout this article. There are many flavors of Windows since Windows Server 2000 - 2008, XP Home & Pro, Vista Home & Pro, and Windows 7 Starter, Home, Pro, Ultimate, etc.…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.
You have products, that come in variants and want to set different prices for them? Watch this micro tutorial that describes how to configure prices for Magento super attributes. Assigning simple products to configurable: We assigned simple products…

744 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now