Backup DNS Windows Server 2022
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How to Backup DNS Server 2022

In this article, I will explain how to backup DNS Windows Server 2022. Domain Name System/Server or DNS is the heart of each thing we do, on the internet and on the LAN. It is the directory book that changes names to IP addresses so we don’t have to remember the figures that represent websites, hostnames, and other resources. DNS is commonly considered an important infrastructure component.

When a disaster happened with a DNS Server, we need to restore the DNS zone to its earlier state as soon as possible. In this article, we have two options for achieving this operation. The initial option in AD DS is authoritative restore. A reliable restore of an Active Directory would take complex time-consuming and also demands the use of backups and restart of DCs. The 2nd one is to use the DNSCMD.exe using the PowerShell command to backup the zones to a text file, which is Obtainable for Windows Servers. The DNSCMD restore takes some minutes to restore a zone. We can apply to both (forward, reverse) lookup zones, either text-based or Active Directory-integrated.

Backup DNS Windows Server 2022

Article Scenario

Backup DNS zones via DNSCMD PowerShell command.

2nd, we will delete xpertstec.local DNS zones from a server for creating the disaster.

Last, we restore xpertstec.local zone from a file the one we created with the DNSCMD command.

How to take a DNS backup (xpertstec.local) zone to a text file using DNSCMD PowerShell.

Log in to the Domain Controller, run Windows PowerShell and then type the following commands to backup DNS zones.

dnscmd WS2022-DC /ZoneExport xpertstec.local backup\xpertstec.local.dns.bkp

dnscmd WS2022-DC /ZoneExport _msdcs.xpertstec.local backup_msdcs.xpertstec.local.dns.bkp

Where WS2022-DC is the DNS server name.

Backup DNS PowerShell

The DNS backup copy (a text file) will be saved to the backup directory.

C:\Windows\System32\dns\backup

Launch Windows Explorer and then go to the C:\Windows\System32\dns\backup directory to verify its contents.

C:\Windows\System32\dnsbackup

How to Delete DNS zones from DNS manager

Launch DNS Manager, expand the DNS server (WS2022-DC) node and then expand Forward Lookup Zones.

Right-click on xpertstec.local zone and then select delete.

DNS Manager

Click Yes

Delete the DNS zone warning

And Yes again delete the zone from (Active Directory and DNS Server).

Remove the DNS zone warning

How to Restore the domain DNS zone

Open DNS Manager, and expand the DNS Server.

Right click on Forward Lookup Zone and then click on New Zone.

DNS Manager create new zone

Welcome to the New Zone Wizard, click Next.

Welcome to the new zone wizard

Zone Type window, choose Primary zone and then deselect the Store the zone in Active Directory, click next.

New zone wizard primary zone

Zone Name window, enter the name of the zone being restored, xpertstec.local and then click next.

Backup DNS wizard zone name

Choose the option Use this existing file radio button and then click Next.

Backup DNS wizard zone file

Please make sure the current backup of the xpertstec.local is available in the following directory, C:\Windows\System32\dns\backup.

Copy the xpertstec.local.dns.bkp file to the backup directory.

Backup DNS directory Windows Server

Paste it into the following directory
C:\Windows\System32\dns

Backup DNS directory Windows Server

Right-click on xpertstec.local.dns.bkp and then select rename.

Rename Backup DNS

Remove the .bkp extension, press enter, and click yes.

Backup DNS directory

Go back to the Zone File Wizard, and then click Next.

Restore DNS wizard zone file

Dynamic Update wizard window, choose to Allow both nonsecure and secure dynamic updates, and then click next.

Restore DNS wizard dynamic update

Click finish

Completing the new zone wizard

Forward lookup zone (xpertstec.local) has been created successfully.
Right Click on xpertstec.local zone and then select Properties.

DNS manager

Click on the Change… button next to the Primary field.

Backup DNS dynamic update

Change the Zone Type window, make sure the Primary zone is selected
Select the option Store the zone in Active Directory and then click ok.

Change zone type DNS

Click Yes to accept the change.

On the xpertstec.local zone Properties window, choose Secure only at Dynamic updates field and click ok.

Local DNS server properties

Finally, we have our DNS Zone up and running.

Summary:

By using the above steps, you can backup, and restore, the copies of the DNS zones in a way that allows high availability for your DNS

For more details please visit Microsoft

Written by Jamil Parvez

Jamil Pervez works as a Network Administrator, based in Kuwait with a Primary focus on Microsoft technologies. Microsoft Certified MCSE, MCTP, MCITP, CCNP, CCIP, CCVP with 20 years of experience in administering Windows Servers, Exchange, VMWare, Veeam B&R, Veritas BackupExec.

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