You can display the list of DNS records of the same type by using the –RRType parameter. Let’s display the list of CNAME records in the specified DNS zone:

Get-DnsServerResourceRecord -ComputerName DC01 -ZoneName woshub.com -RRType CNAME

You can also use filters by any DNS record parameters using Where-Object. For example, to display the list of A records containing rds phrase in their hostnames:

Get-DnsServerResourceRecord -ZoneName woshub.com -RRType A | Where-Object HostName -like "*rds*"

To remove DNS records, the Remove-DnsServerResourceRecord cmdlet is used.

For example, to remove a CNAME record, run the command:

Remove-DnsServerResourceRecord -ZoneName woshub.local -RRType CName -Name Ber-RDSFarm

To remove an A DNS record:

Remove-DnsServerResourceRecord -ZoneName woshub.local -RRType A -Name ber-rds1 –Force

To remove a PTR record from a Reverse Lookup Zone:

Remove-DnsServerResourceRecord -ZoneName “100.168.192.in-addr.arpa” -RRType “PTR” -Name “33”

How to Create Multiple A and PTR DNS Records from a .CSV File?

Suppose, you want to create multiple A records at a time in the specific DNS Forward Lookup Zone. You can add them one-by-one using the Add-DnsServerResourceRecordA cmdlet, but it is easier to add A records in bulk from a .CSV file.

Create a text file NewDnsRecords.txt with the names and IP addresses you want to add to DNS. The txt file format is as follows:

HostName, IPAddress

To create A records in the woshub.com zone according to the data in your TXT/CSV file, use the following PowerShell script:

Import-CSV "C:\PS\NewDnsRecords.txt" | %{
Add-DNSServerResourceRecordA -ZoneName woshub.com -Name $_."HostName" -IPv4Address $_."IPAddress"
}

If you want to add records to the Reverse Lookup Zone at the same time, add the –CreatePtr parameter to your Add-DNSServerResourceRecordA command.

Then using DNS Manager console (dnsmgmt.msc) or Get-DnsServerResourceRecord -ZoneName woshub.local make sure that all DNS records have been created successfully.

If you want to add PTR records to the Reverse Lookup Zone in bulk, create a text or a CSV file with the following structure:

octet,hostName,zoneName
102,ber-rds2.woshub.com,100.168.192.in-addr.arpa
103,ber-rds3.woshub.com,100.168.192.in-addr.arpa
104,ber-rds4.woshub.com,100.168.192.in-addr.arpa
105,ber-rds5.woshub.com,100.168.192.in-addr.arpa

Then run the script:

Import-CSV "C:\PS\NewDnsPTRRecords.txt" | %{
Add-DNSServerResourceRecordPTR -ZoneName $_."zoneName" -Name $_."octet" -PTRDomainName $_."hostName"
}

Make sure that your PTR records appeared in the DNS Reverse Lookup Zone.