need the help on DNS records

Hi Matt-5439,

To remove a static IP and DNS addresses to use a dynamic configuration using PowerShell, use these steps:

Open Start.

Search for PowerShell, right-click the top result, and select the Run as administrator option.

Type the following command to note the “InterfaceIndex” number for the network adapter and press Enter:

Get-NetIPConfiguration
Network interface information using PowerShell

Type the following command to enable the network adapter to obtain its TCP/IP configuration using DHCP and press Enter:

Get-NetAdapter -Name Ethernet1 | Set-NetIPInterface -Dhcp Enabled

In the command, make sure to change “Ethernet0” for the adapter’s name that you want to configure.

Type the following command to enable the network adapter to obtain its DNS configuration using DHCP and press Enter:

Set-DnsClientServerAddress -InterfaceIndex 3 -ResetServerAddresses
In the command, change “3” for the InterfaceIndex for the adapter to configure.

Enable DHCP for dynamic IP assignment using PowerShell

Once you complete the steps, the IP and DNS addresses will be reset from the adapter, and your computer will receive a new dynamic configuration from DHCP.

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You could follow the steps outlined here.
https://social.technet.microsoft.com/forums/windowsserver/en-US/667dbb68-4a51-4eb5-be4c-87a2db9532e6/dns-static-to-dynamic?forum=winserverPN

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do not know what effect when enabling /ageallrecords

Read on here.
https://video2.skills-academy.com/en-us/windows-server/administration/windows-commands/dnscmd

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Hi all,

you can uncheck "Delete this record when it becomes stale option" of a record in DNS snap-in but you can not check it again
after unchecking it? Any way around? Thank you!