###Bundle details and download
Out of the box this bundle looks for four known ‘problem’ DNS queries:
- DNS-SD – this is not regular DNS but related to Bonjour and usually represents unnecessary traffic on your network,
- isatap – this is IPv6 over IPv4 tunneling, if you are an IPv4 only shop, this is probably unnecessary traffic on your network, you may be able to turn this off, enabled by default on Win7 and Server2008,
- wpad – this is Web Proxy Auto Discovery, configure a wpad host on your network or turn this off, all major browsers support wpad, this can present a security risk if left enabled and unconfigured,
- reverse DNS – like the name suggests, this converts IP addresses into hostnames, reverse DNS is often ‘broken’ or is fine on some subnets but broken for other subnets.