On 2013-10-16 09:47, Manson, John wrote: > I would add that Windows PC OSs by default have the dns client cache set to 'enable'. Yes. And like Windows Server's DNS cache, these honour TTLs too, so as long as TTLs are set properly, it's not an issue. -- Dave Warren http://www.hireahit.com/ http://ca.linkedin.com/in/davejwarren