retrieve DNS records help

Question

Hi all,

We have many reverse lookup zones in our AD integrated zone of our domain mydomain.local.
How to retrieve all PTR records for each reverse lookup zones through script?

Unfortunately I don't have much knowledge of how to create Powershell script, so I hope someone has an example
for me similar to this that I can reuse.

Thank you!

Answer 1

Like this: Get-DnsServerResourceRecord -ZoneName "reverse-lookup-zone-name"

Answer 2

When dealing with PTR records, the HOST is that part of the IP address that uniquely identifies the PTR record within the zone. The name in the PTR record (while it's usually a DNS name) doesn't necessarily refer to an A (or any other type of DNS record). There's nothin in DNS that states, for instance, that an A or AAAA record has to have an associated PTR record, or that a PTR record has to represent the DNS name of any other record in your (or any) DNS servers forward lookup zones.

Given that, this will attempt to find a PTR record given the data in the CSV:

# CSV has these columns: Host, ZoneName, Data
    Import-CSV YOUR-CSV-NAME-GOES-HERE |
        ForEach-Object{
            Get-DNSServerResourceRecord -ComputerName YOUR-DNS-SERVER-NAME -name $_.Host -zonename $_.ZoneName -RRType PTR
        }

Note that there's no error handling, and that I have no idea what you want to do with the information in the PTR if one is found.

Answer 3

Give this a try -- NOTE: it must be "Run as administrator". Also, it works only with AD-integrated DNS zones:

$Zone = "1.168.192.in-addr.arpa"  
$DnsServer = (Get-ADDomain).ReplicaDirectoryServers[0]  
$DnsRecordQueryParams = @{  
    'Computername' = $DnsServer  
    'Class'        = 'MicrosoftDNS_PTRType'  
    'Namespace'    = 'root\MicrosoftDNS'  
    'Filter'       = "ContainerName = '$Zone' AND OwnerName <> '$Zone'"     # AND Timestamp <> 0 <=== add this if you want only dynamic records  
}  
  
Get-WmiObject @DnsRecordQueryParams |   
    ForEach-Object {  
        $parts = $_.Textrepresentation -split " "  
        $reverse = $parts[0] -replace '\.in-addr\.arpa', ""  
        $ipparts = $reverse -split "\."                      # IPv4 ONLY!!!!!  
        $ip = $ipparts[(($ipparts.count - 1)..0)]  
      
        [PSCustomObject]@{  
            'DnsServerName' = $DnsServer  
            'Zone' = $_.DomainName  
            'Host' = $ipparts[0]  
            'Name' = $_.RecordData  
            'Type' = if ($_.timestamp -gt 0) { 'Dynamic' } else { 'Static' }  
            'IP'   = ($ip -join ".")  
        }  
    }