Not specific to these instructions but because of (potential) caching, when you need to verify dns it normally pays to use a third party server (or two) such as

Not specific to these instructions but because of (potential) caching, when you need to verify dns it normally pays to use a third party server (or two) such as these instead of your local machine: http://www.zoneedit.com/lookup.html http://www.zoneedit.com/lookup.html http://www.kloth.net/services/dig.php http://www.kloth.net/services/dig.php http://www.zonecut.net/dns/ http://www.zonecut.net/dns/