I have the same problem. My host is Ubuntu 18.04, VM Virtual Box I tried both from the comamnd line ssh root@sandbox-hdp.hortonworks.com -p 4200 ssh: Could not resolve hostname sandbox-hdp.hortonworks.com: Name or service not known Although I added the line to /etc/hosts {127.0.0.1} sandbox-hdp.hortonworks.com sandbox-hdf.hortonworks.com If I go for VM Next step is to launch a dashboard on 1080 What should I try now? My network adapter is attached to NAT. I already checked the port settings. If I go to Advanced HDP and then choose Zepellin 502 Bad Gateway nginx/1.15.7 How to fix this? ... View more