I already installed Hadoop on my machine \"Ubuntu 13.05\" and now I have an error when browsing localhost:50070 the browser says that the page does not exist.
Since Hadoop 3.0.0 - Alpha 1 there was a Change in the port configuration:
http://localhost:50070
was moved to
http://localhost:9870
see https://issues.apache.org/jira/browse/HDFS-9427