sham1111

thanks for the quick reply, Yes I am running demon/ code on a computer engine and cyber duck on the local machine. No it does not work with alternative SFTP...

yes, I follow the same instruction according to your tutorial.Yes,compute engine is attached and using external IP to access from cyber duck. I have created the rule for firewall rules...

Image with firewall rule 

@kolban-google thanks and it works after opening the firewall:-) Thanks for the help