Hey @PiAiYi I'm a bit confused as to what you're trying to do. I'll explain a bit how the sandbox is set up and hopefully that provides a bit of context into the IPs that are in play. When you ssh using port 22, you'll notice the hostname of the machine you log into is set to "sandbox-host". This hosts main job is to provide an environment for a Docker container (if you're new to Docker, no worries). There is a second VM (the Docker container) inside of this sandbox-host machine. When you ssh using port 2222, you are logging into the second VM (with hostname sandbox-hdp), which again, is a VM inside the sandbox-host machine. When you play with the sandbox (Ambari, HBase, Hive, etc.), all those services are in this second VM (sandbox-hdp). So when you are within the sandbox-hdp machine, you can ping 172.17.0.2 because that is it's own IP. The reason you may be having trouble pinging 128.222... is because that is the IP address of the outside VM. For security (and other) reasons, you're not able to ping outside machines in this way by default. What is it you're trying to do? There might be another approach we can suggest. ... View more

@j van Arendonk Heya! Looks like there's a bit of a mixup! You are SSH'd into the "wrong" sandbox. The VM that you set up is actually a wrapper around the "real" sandbox. See how the hostname of the machine you are SSH'd into is "sandbox-host"? You are SSH'd into the VM, whereas you want to SSH into the sandbox within the VM. There are a few different ways of doing that, feel free to take your pick: Using SSH (notice that the port needs to be 2222): For VirtualBox: ssh -p 2222 root@localhost For VMWare: ssh -p 2222 root@<the-ip-of-your-vm> Using the browser: with the sandbox running, open a browser to http://localhost:4200 You'll know you are successfully SSH'd into the sandbox when the prompt you see is "[root@sandbox /]#" (notice there is no "-host"). Hope that helps! Let us know how it goes! 🙂 ... View more

@Andreas Danckert @Aziz Herch @Marco Almeida Yup - this issue was triggered by a Docker change. Please use this updated start script for deploying the HDP 2.6.3 sandbox: https://raw.githubusercontent.com/hortonworks/data-tutorials/f88da0da324e252996cf3201fc9b038e9564a665/tutorials/hdp/sandbox-deployment-and-install-guide/assets/start_sandbox-hdp.sh Note: Please only use this script for the HDP 2.6.3 sandbox. If you find yourself reading this thread in the future, a new process is in place and this script is likely much more simplified/streamlined in the future - so the link above will be obsolete. ... View more