Accessing HANA DB via putty

I have a query regarding accessing HANA DB via putty.

DB team has created a user for me(say "X") with "MONITORING" role through which I am able to connect to HANA DB in studio.
OS team has created a user for me(say "Y") through which I am able to access server on which HANA DB is residing.

SO I want to know how and by which user can I access HANA DB in putty?