I'm looking for some advice on how to clean up our DNS entries, as we have over 10,000 of them to sift through. While I think I can handle the static entries without much issue, the dynamic ones are a different story since they come with timestamps. From what I understand, those timestamps only indicate when the entries were created, not whether they are still actively in use. I'm curious about how other system administrators have approached cleaning up their DNS environments. Any tips or best practices?
4 Answers
One effective way to manage this is by enabling and configuring DNS scavenging. Just keep in mind that scavenging isn't enabled by default, so you'll need to set it up carefully. You can find a guide on how to do that [here](https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/dns-scavenging-setup).
And yeah, as you suspected, the number of days for retention can usually be customized based on your company's policies. So, you can adjust it to suit your needs!
We have scavenging active on one of our Windows DNS servers, and it's been handling the dynamic entries well. Just keep in mind that you'll have to set your parameters for how long entries should stick around.
Once DNS scavenging is configured, the dynamic entries should clean themselves up automatically after the designated number of days. It's a great way to handle it without needing to manually delete things.
Absolutely! Make sure you follow every step carefully, because setting this up can be a project in itself. Rushing through it might lead to issues.