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WalidFawzy-3249 asked ·

DNS aging and Scavenging

Hello Everyone Still have records from 2019 and setting for aging and Scavenging is 7 days .

windows-dhcp-dns
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did you enable aging & scavening on server and zone level?

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Yes , sir you can see the config 76689-aging.png


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aging.png (11.8 KiB)
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CandyLuo-MSFT answered ·

Hi ,

Have you enabled scavenging on the DNS Server? As picture below:

76916-image.png

For your reference:

How DNS Aging and Scavenging Works

Best Regards,

Candy


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Hello @CandyLuo-MSFT , I enabled scavenging on the DNS Server before , you can see the screen shot 77738-scav-sett.png


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scav-sett.png (13.3 KiB)
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CandyLuo-MSFT answered ·

Hi ,

Try to manually scavenge DNS resource records, see if it works.

78025-image.png

Best Regards,

Candy


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WalidFawzy-3249 answered ·

Hello @CandyLuo-MSFT

I tried but unfortunately didn't work and for your info I had more than one server at different sites and set all same setting at all servers . that's right or not

can I verify if setting on DNS is right or not ?

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A single DNS server with DNS scavenging enabled on it is enough to have the DNS scavenging properly done. Configuring DNS scavenging on many servers is usually not recommended as it makes troubleshooting DNS scavenging related issues more complicated.

The following article talks how many DNS servers should be used for DNS scavenging of AD-Integrated DNS zones, please have a look:

https://social.technet.microsoft.com/wiki/contents/articles/21724.how-dns-aging-and-scavenging-works.aspx



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Hello @CandyLuo-MSFT

Still old records found in DNS if you have any other steps to resolve my issue will appreciate it .

thanks a lot

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