While launching instance I disabled AUTO PUBLIC IP ASSIGN, after launched the instance how to enable that auto public IP for that instance(we can associate elastic IP for that instance and able login instead of this option how to get public IP for that instance)?

if disabled metadata option while creating instance not able to login the instance shows error msg as Permission denied (publickey,gssapi-keyex,gssapi-with-mic).? How to fix this?

https://phoenixnap.com/kb/ssh-....permission-denied-pu

if disabled metadata option while creating instance not able to login the instance shows error msg as Permission denied (publickey,gssapi-keyex,gssapi-with-mic).? How to fix this?