Public/Copy-DNSServerZone.ps1
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Function Copy-DNSServerZone { Param ( [Parameter(Mandatory)]$ComputerName, [Parameter(Mandatory)]$SrcZone, [Parameter(Mandatory)]$DestServer, [Parameter(Mandatory)]$DestZone, $StaleDays = 21 ) # Calculate the new record name under the new destination zone. $src = Get-DnsServerResourceRecord -ComputerName $ComputerName -ZoneName $srcZone | Where-Object { $_.RecordType -ne 'NS' -and $_.RecordType -ne 'SOA' } | Select-Object @{name = 'Name'; expression = { If ($DestZone -eq $SrcZone) { $_.HostName } Else { "$($_.HostName).$($srcZone.Replace(".$DestZone",$null))" } } }, HostName, TimeStamp, RecordData, RecordType # Remove any delegations to the sub zone to be copied in, otherwise there will be an error. # We assume that this is a child zone being copied up into a parent zone. If ($SrcZone -ne $DestZone) { Try { Remove-DnsServerZoneDelegation -ComputerName $DestServer -Name $DestZone -ChildZoneName $SrcZone.Replace(".$DestZone", $null) -Force -PassThru -Verbose } Catch { Write-Warning "No delegation to delete for $($SrcZone.Replace(".$DestZone",$null))." } } # Bug in PSv2 will run a ForEach loop when the collection is NULL If (!$src) { Write-Warning "No records for zone $srcZone on server $ComputerName." } Else { ForEach ($srcRec in $src) { # Echo the source record data for logging $srcRec Switch ($srcRec.RecordType) { 'PTR' { If ($srcRec.TimeStamp -eq $null) { Add-DnsServerResourceRecord -Name $srcRec.Name -Ptr -ZoneName $destZone -AllowUpdateAny -PtrDomainName $srcRec.RecordData.PtrDomainName -ComputerName $DestServer } Else { If ((New-TimeSpan $srcRec.TimeStamp).TotalDays -gt $StaleDays) { Write-Warning "Skipping stale record add: $($srcRec.Name)" } Else { # Add the entry with fresh aging Add-DnsServerResourceRecord -Name $srcRec.Name -Ptr -ZoneName $destZone -AllowUpdateAny -PtrDomainName $srcRec.RecordData.PtrDomainName -ComputerName $DestServer -AgeRecord } } # End If } 'A' { If ($srcRec.TimeStamp -eq $null) { Add-DnsServerResourceRecord -Name $srcRec.Name -A -ZoneName $destZone -AllowUpdateAny -IPv4Address $srcRec.RecordData.IPv4Address -ComputerName $DestServer } Else { If ((New-TimeSpan $srcRec.TimeStamp).TotalDays -gt $StaleDays) { Write-Warning "Skipping stale record add: $($srcRec.Name)" } Else { # Add the entry with fresh aging Add-DnsServerResourceRecord -Name $srcRec.Name -A -ZoneName $destZone -AllowUpdateAny -IPv4Address $srcRec.RecordData.IPv4Address -ComputerName $DestServer -AgeRecord } } # End If } 'SRV' { If ($srcRec.TimeStamp -eq $null) { Add-DnsServerResourceRecord -Name $srcRec.Name -Srv -ZoneName $destZone -AllowUpdateAny -DomainName $srcRec.RecordData.DomainName -Port $srcRec.RecordData.Port -Priority $srcRec.RecordData.Priority -Weight $srcRec.RecordData.Weight -ComputerName $DestServer } Else { If ((New-TimeSpan $srcRec.TimeStamp).TotalDays -gt $StaleDays) { Write-Warning "Skipping stale record add: $($srcRec.Name)" } Else { # Add the entry with fresh aging Add-DnsServerResourceRecord -Name $srcRec.Name -Srv -ZoneName $destZone -AllowUpdateAny -DomainName $srcRec.RecordData.DomainName -Port $srcRec.RecordData.Port -Priority $srcRec.RecordData.Priority -Weight $srcRec.RecordData.Weight -ComputerName $DestServer -AgeRecord } } # End If } 'CNAME' { If ($srcRec.TimeStamp -eq $null) { Add-DnsServerResourceRecord -Name $srcRec.Name -CName -HostNameAlias $srcRec.RecordData.HostNameAlias -ZoneName $destZone -AllowUpdateAny -ComputerName $DestServer } Else { If ((New-TimeSpan $srcRec.TimeStamp).TotalDays -gt $StaleDays) { Write-Warning "Skipping stale record add: $($srcRec.Name)" } Else { # Add the entry with fresh aging Add-DnsServerResourceRecord -Name $srcRec.Name -CName -HostNameAlias $srcRec.RecordData.HostNameAlias -ZoneName $destZone -AllowUpdateAny -ComputerName $DestServer -AgeRecord } } # End If } 'MX' { If ($null -eq $srcRec.TimeStamp) { Add-DnsServerResourceRecord -Name $srcRec.Name -MX -MailExchange $srcRec.RecordData.MailExchange -Preference $srcRec.RecordData.Preference -ZoneName $destZone -AllowUpdateAny -ComputerName $DestServer } Else { If ((New-TimeSpan $srcRec.TimeStamp).TotalDays -gt $StaleDays) { Write-Warning "Skipping stale record add: $($srcRec.Name)" } Else { # Add the entry with fresh aging Add-DnsServerResourceRecord -Name $srcRec.Name -MX -MailExchange $srcRec.RecordData.MailExchange -Preference $srcRec.RecordData.Preference -ZoneName $destZone -AllowUpdateAny -ComputerName $DestServer -AgeRecord } } # End If } } #end Switch class } #end ForEach source record } #end If src } |