You are welcome @Sabine Maennel , please accept the best answer to close the thread. ... View more

One comment on the tutorials question. When you go to http://localhost:8888 and click on launch dashboard, in addition to the Ambari page the tutorials page pops up in a separate window. Note that the popup blocker may prevent this page from displaying. Adjust your browser settings accordingly or just head out to the tutorials page referenced above. ... View more

Hi @Sabine Maennel, Regarding the scp question, if you are on Sandbox 2.5 (virtualbox) try using port 2122 (If you are running a different version please provide the details.) E.g. scp -P 2122 ./test.txt root@localhost:/root You can see all the ports set for forwarding in your local machine by going to the virtualbox menu / machine / settings / network / advanced / port forwarding. Regarding login in to Ambari, you can follow this tutorial which will walk you through login in as maria_dev who has limited rights in Ambari but also walk you through setting up the admin password so you can login with full admin rights. http://hortonworks.com/hadoop-tutorial/learning-the-ropes-of-the-hortonworks-sandbox/ Regarding the tutorials, if you are unable to access the tutorials through the sandbox they are also available in this URL: http://hortonworks.com/tutorials/ I hope this helps! - Luis ... View more

Also for troubleshooting purposes you can always do "tail -f ambari-server.log" under the "/var/log/ambari-server" directory (assuming default path was used for Ambari). This will give you a "scrolling view" of events logged by the Ambari server. - Luis ... View more