Not able to Setup passwordless ssh for ambari installation.

[#1]

Hello,

I want to do a passwordless ssh login to my localhost.

I tried the following steps many times but it asks for password when i try "ssh localhost".

1. ssh-keygen

2. cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

3. chmod 700 ~/.ssh

4. chmod 600 ~/.ssh/authorized_keys

This is screenshot of my terminal.

I tried the same steps to login from localhost to udhav.fqdn.com, but even now it promts me for password. 

For the second case i followed steps provided in this link.

https://www.tecmint.com/ssh-passwordless-login-using-ssh-keygen-in-5-easy-steps/

I guess i am doing small mistake. Can anyone help me with this?

Thank you.

[#2]

@stevenmatison after this will i be able to use the hostname as a target host while creating a cluster in ambari?

And also i am using ubuntu 18.04.

Thank you

[#3]

@Udhav  Yes.  Once you complete the rest of the node readiness (install repos, ambari-server, ambari-agent) you would visit http://[fqdn]:8080 and begin rest of cluster install via Ambari.

[#4]

@stevenmatison Thank you very much!