Please try the below command in Ubuntu first:
$ sudo apt-get install -y openssh-server
It will install the SSH server.
Please check the IP and try again.
Hope this helps. Thanks.
i runned the above command in that downloaded machine setup 'HadoopTrainingBase' terminal and execute the command ifconfig
the ip address was same as before after installing SSH server, i entered it
again i am facing same error in opening Putty