I'm trying to install hadoop for the first time and I'm following this tutorial http://www.youtube.com/watch?v=xrxQXfE7t9A & https://sites.google.com/site/howtohadoop/how-to-install-hdp#bmec2
What I'm trying to do is setting up the master node to access the other slave node. So, when it comes to set the permission for the /root/.ssh folder by "chmod 700 /root/.ssh" an error message is displayed that I do not have permission.
I couldn't understand why this message? Why I do not have permission?
any help?
You don't have permission since you are not logged in as root and trying to play with the files owned by root.
Run sudo chmod 700 /root/.ssh . sudo makes you run commands as root on the system.