Hi The realhostip.com DNS resolver will be turned off imminently. This is the default resolver used by the Console in releases 4.2 and below to resolve the IP of the console proxy VM. Once the DNS resolver is turned off, IF YOU HAVE NOT taken action to not replace the default, console access will not work.
See these blog posts: https://blogs.apache.org/cloudstack/entry/realhostip_service_is_being_retir ed https://blogs.apache.org/cloudstack/entry/cloudstack_s_realhostip_service_t o http://shapeblue.com/cloudstack/retirement-of-the-realhostip-com-service/ Please avoid inconvenience to your users and make the required changes immediately. ‹ Chiradeep