Today I spoke with Robert Molina from Hortonworks and possibly found what is creating all those alerts! The sandbox is intended to be run on a desktop with a NAT networked interface. I set it up on a dedicaded headless server with a bridge adaptor. Looks like sandbox have a problem with that and that cause some of the services configs to not function properly! As a result some services works but reports network connections alerts! After some config change. The related alerts weren't there anymore. So always use a vm for and how it was intended to be used. Thanks to the hortonworks team and Robert who wanted to go to the bottom of this. Conclusion: If you want, like me, to test drive hortonworks on a headless server. Start from scratch and build it! What every sysadmin should do anyways... That's what I'll do this week end... P ... View more