Hadoop Preparation
We need to add a new host name in /etc/hosts, called hadoop.master.lan, in my case:
cat /etc/hosts
… master.hadoop.lan
You need to specify your IP address, not copy in this slide. Run β€œifconfig” to find out the IP address of your host.
Now, configure ssh key based authentication for hadoop account by running the below commands (replace the hostname or FQDN against the ssh-copy-id command accordingly).
Also, leave the passphrase filed blank in order to automatically login via ssh.
$ ssh-keygen -t rsa
$ ssh-copy-id master.hadoop.lan
You will see something similar to below:
You can test
ssh master.hadoop.lan
You should be able to log in by ssh without password
Last modified 1yr ago
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