Public/Backup-DNSServerZones.ps1
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Function Backup-DNSServerZones { param( [Parameter(Mandatory)][string]$ComputerName ) # Before backing up the file we need to flush changes in memory to the file. # GUI - Right click zone / Update server data file # Use "dnscmd /writebackfiles" to flush all zones to disk. # Use "dnscmd /zonewriteback" to flush a single zone to disk. Dnscmd $ComputerName /writebackfiles $Zones = Get-DnsServerZone -ComputerName $ComputerName | Where-Object { $_.ZoneType -eq 'Primary' -and $_.IsAutoCreated -eq $false } | Select-Object -ExpandProperty ZoneName ForEach ($Zone in $Zones) { $Zone # Make a backup copy of the CONTOSO.com.dns zone file Dnscmd $ComputerName /ZoneExport $Zone $($Zone + "_backup_$(Get-Date -UFormat %Y%m%d%H%M%S).dns") # Dump a CSV report of all records for archive and TTL documentation. $ZoneRecords = Get-WMIObject -ComputerName $ComputerName ` -Namespace root\MicrosoftDNS -Class MicrosoftDNS_ResourceRecord ` -Filter "DomainName='$Zone'" $ZoneRecords | Select-Object ContainerName, DnsServerName, DomainName, IPAddress, ` OwnerName, RecordClass, RecordData, TextRepresentation, ` Timestamp, TTL | Export-Csv "$($Zone)_backup_$(Get-Date -UFormat %Y%m%d%H%M%S).csv" -NoTypeInformation } # Verify backup files exists Get-ChildItem -Path "\\$ComputerName\admin$\system32\dns\" } |