Hi, I am struggling with the ame Problem. Mainserver: hadoopmain.hadoop.local Host1: node1.hadoop.local Host2. node2.hadoop.local I configured as it was set in the manual and when I try to connect via ssh it is working without password So I am logged in as root in the Mainserver hadoopmain.hadoop.local I then enter: ssh root@node1.hadoop.local And then I am logged on the node1 without being asked for a password. Nevertheless I a getting the failure: ========================== Creating target directory... ========================== Command start time 2019-02-15 12:12:13 Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). SSH command execution finished host=node1.hadoop.local, exitcode=255 Command end time 2019-02-15 12:12:13 ERROR: Bootstrap of host node1.hadoop.local fails because previous action finished with non-zero exit code (255) ERROR MESSAGE: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). STDOUT: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password). ... View more