In a previous post, I showed you how to create a private DNS zone in Azure using PowerShell and Azure CLI. Today I will show you how to manage the DNS records of that area using PowerShell and Azure CLI.
Prerequisites
- This tutorial assumes that you already have a Microsoft Azure account configured.
- You already have a private DNS zone created and properly configured. If you want to know how to create it, see this link.
Azure PowerShell Workaround
If you want to know how to install the PowerShell Azure module on your machine, check out this link.
The simplest way to get started is to sign in interactively at the command line.
1 2 3 | Connect-AzAccount |
This cmdlet will bring up a dialog box prompting you for your email address and password associated with your Azure account.
If you have more than one subscription associated with your mail account, you can choose the default subscription. To perform this task, we will use the following commands:
1 2 3 4 | Get-AzSubscription Select-AzSubscription -Subscription "My Subscription" |
Once you set your default subscription, you’re ready to start.
Set the variables
Here, we define the characteristics of our environment and the resource’s properties.
1 2 3 4 | $resourceGroupName = "RG-DEMO-NE" $priveZoneName = "private.jorgebernhardt.local" |
Create DNS records
To create a record set containing multiple records, use New-AzPrivateDnsRecordConfig cmdlet with the following syntax.
1 2 3 4 5 6 7 8 9 10 11 | $Records = @() $Records += New-AzPrivateDnsRecordConfig -IPv4Address 192.168.1.4 $Records += New-AzPrivateDnsRecordConfig -IPv4Address 192.168.1.5 $RecordSet = New-AzPrivateDnsRecordSet -Name "www" ` -RecordType A ` -ResourceGroupName $resourceGroupName ` -TTL 3600 ` -ZoneName $priveZoneName ` -PrivateDnsRecords $Records |
Instead of creating a record with a single value, use the New-AzPrivateDnsRecordSet cmdlet with the following syntax.
1 2 3 4 5 6 7 8 | New-AzPrivateDnsRecordSet -Name "text" ` -RecordType TXT ` -ResourceGroupName $resourceGroupName ` -TTL 3600 ` -ZoneName $priveZoneName ` -PrivateDnsRecords (New-AzPrivateDnsRecordConfig -Value "This is a TXT Record of Jorgebernhardt.local zone") |
Update DNS records
if you want to add a record to an existing record set in a private DNS zone, use the following commands.
1 2 3 4 5 6 7 8 9 | $RecordSet = Get-AzPrivateDnsRecordSet -ResourceGroupName $resourceGroupName ` -ZoneName $priveZoneName ` -Name "www" ` -RecordType A Add-AzPrivateDnsRecordConfig -RecordSet $RecordSet ` -Ipv4Address 192.168.1.6 Set-AzPrivateDnsRecordSet -RecordSet $RecordSet |
To update the current record set, use the following command.
1 2 3 4 5 6 7 8 9 | $RecordSet = Get-AzPrivateDnsRecordSet -Name "text" ` -ResourceGroupName $resourceGroupName ` -ZoneName $priveZoneName ` -RecordType TXT ` $RecordSet.Ttl = 4800 Set-AzPrivateDnsRecordSet -RecordSet $RecordSet |
List DNS records
To list all records in the private zone, use the cmdlet Get-AzPrivateDnsRecordSet with the following syntax.
1 2 3 4 5 | Get-AzPrivateDnsRecordSet -ZoneName $priveZoneName ` -ResourceGroupName $resourceGroupName ` | Select-Object Name, Recordtype, Records | Sort-Object RecordType |
Delete DNS records
To delete a specific record, use the Remove-AzPrivateDnsRecordSet cmdlet with the following syntax.
1 2 3 4 5 6 | Remove-AzPrivateDnsRecordSet -Name "www" ` -ResourceGroupName $resourceGroupName ` -ZoneName $priveZoneName ` -RecordType A |
If, instead, you want to delete all records of the same type, use the following commands.
1 2 3 4 5 6 | Get-AzPrivateDnsRecordSet -ResourceGroupName $resourceGroupName ` -ZoneName $priveZoneName ` -RecordType A ` | Remove-AzPrivateDnsRecordSet |
Azure CLI Workaround
In this case, we will use Azure Cloud Shell, a browser-based shell built into Azure Portal. This allows us to use the Azure command-line tools (Azure CLI and Azure PowerShell) directly from a browser. If you want to know more about Azure Cloud Shell, check out this link.
Create DNS records
To create an A record, use the following commands.
1 2 3 4 5 6 7 | az network private-dns record-set a add-record \ -g RG-DEMO-NE \ -z private.jorgebernhardt.local \ -n www \ -a 192.168.1.4 |
Update DNS records
If you want to update the existing record set, use the following command.
1 2 3 4 5 6 7 | az network private-dns record-set a update \ -g RG-DEMO-NE \ -z private.jorgebernhardt.local \ -n www \ --set ttl=4800 |
if, instead, you want to add a record to an existing record set, use the following command
1 2 3 4 5 6 7 | az network private-dns record-set a add-record \ -g RG-DEMO-NE \ -z private.jorgebernhardt.local \ -n www \ -a 192.168.1.5 |
List DNS records
To list all records in the private zone, use the following command.
1 2 3 4 5 6 | az network private-dns record-set list \ -g RG-DEMO-NE \ -z private.jorgebernhardt.local \ -o table |
Delete DNS records
To only remove a specific record from a record set, use the following command.
1 2 3 4 5 6 7 | az network private-dns record-set a remove-record \ -g RG-DEMO-NE \ -z private.jorgebernhardt.local \ -n www \ -a 192.168.1.4 |
If you want to delete a record set and all associated records, use the following command.
1 2 3 4 5 6 7 | az network private-dns record-set a delete \ -g RG-DEMO-NE \ -z private.jorgebernhardt.local \ -n www \ -y |
Thanks for reading my post. I hope you find it helpful.
You can learn more about Azure Private DNS zone here: https://docs.microsoft.com/en-us/azure/dns/private-dns-overview
