DNSCache - Snippets for working with DNS Caching
GetReverseDNS - Perform a bulk reverse lookup on an entire class C subnet
Get-ReverseInfo -Subnet '10.33.19.0' -DNSServer 'dnsmaster01.acme.com'
ScanDNSonDC - Scan Domain controllers to verify DNS settings are as per best practise
DNSDiag - Get a summary on usage of the DNS server by DNS clients (useful when retiring a DNS server)